<html>
<head>
<meta http-equiv=”Content-Type” content=”text/html; charset=gb2312″>
<style type=text/css>
td,body { font-size: 13px;}body{
margin-top:0px;
margin-left:0px;
margin-right:0px;
background-color: #fcfff7;
}
</style>
<title>计算器</title>
<SCRIPT language=javascript>
<!–
var endNumber=true
var mem=0
var carry=10
var hexnum=”0123456789abcdef”
var angle=”d”
var stack=”"
var level=”0″
var layer=0
//数字键
function inputkey(key)
{
var index=key.charCodeAt(0);
if ((carry==2 && (index==48 || index==49))
|| (carry==8 && index>=48 && index<=55)
|| (carry==10 && (index>=48 && index<=57 || index==46))
|| (carry==16 && ((index>=48 && index<=57) || (index>=97 && index<=102))))
if(endNumber)
{
endNumber=false
document.calc.display.value = key
}
else if(document.calc.display.value == null || document.calc.display.value == “0″)
document.calc.display.value = key
else
document.calc.display.value += key
}
function changeSign()
{
if (document.calc.display.value!=”0″)
if(document.calc.display.value.substr(0,1) == “-”)
document.calc.display.value = document.calc.display.value.substr(1)
else
document.calc.display.value = “-” + document.calc.display.value
}
//函数键
function inputfunction(fun,shiftfun)
{
endNumber=true
if (document.calc.shiftf.checked)
document.calc.display.value=decto(funcalc(shiftfun,(todec(document.calc.display.value,carry))),carry)
else
document.calc.display.value=decto(funcalc(fun,(todec(document.calc.display.value,carry))),carry)
document.calc.shiftf.checked=false
document.calc.hypf.checked=false
inputshift()
}
function inputtrig(trig,arctrig,hyp,archyp)
{
if (document.calc.hypf.checked)
inputfunction(hyp,archyp)
else
inputfunction(trig,arctrig)
}
//运算符
function operation(join,newlevel)
{
endNumber=true
var temp=stack.substr(stack.lastIndexOf(“(“)+1)+document.calc.display.value
while (newlevel!=0 && (newlevel<=(level.charAt(level.length-1))))
{
temp=parse(temp)
level=level.slice(0,-1)
}
if (temp.match(/^(.*\d[\+\-\*\/\%\^\&\|x])?([+-]?[0-9a-f\.]+)$/))
document.calc.display.value=RegExp.$2
stack=stack.substr(0,stack.lastIndexOf(“(“)+1)+temp+join
document.calc.operator.value=” “+join+” “
level=level+newlevel
}
//括号
function addbracket()
{
endNumber=true
document.calc.display.value=0
stack=stack+”(“
document.calc.operator.value=” “
level=level+0
layer+=1
document.calc.bracket.value=”(=”+layer
}
function disbracket()
{
endNumber=true
var temp=stack.substr(stack.lastIndexOf(“(“)+1)+document.calc.display.value
while ((level.charAt(level.length-1))>0)
{
temp=parse(temp)
level=level.slice(0,-1)
}
document.calc.display.value=temp
stack=stack.substr(0,stack.lastIndexOf(“(“))
document.calc.operator.value=” “
level=level.slice(0,-1)
layer-=1
if (layer>0)
document.calc.bracket.value=”(=”+layer
else
document.calc.bracket.value=”"
}
//等号
function result()
{
endNumber=true
while (layer>0)
disbracket()
var temp=stack+document.calc.display.value
while ((level.charAt(level.length-1))>0)
{
temp=parse(temp)
level=level.slice(0,-1)
}
document.calc.display.value=temp
document.calc.bracket.value=”"
document.calc.operator.value=”"
stack=”"
level=”0″
}
//修改键
function backspace()
{
if (!endNumber)
{
if(document.calc.display.value.length>1)
document.calc.display.value=document.calc.display.value.substring(0,document.calc.display.value.length – 1)
else
document.calc.display.value=0
}
}
function clearall()
{
document.calc.display.value=0
endNumber=true
stack=”"
level=”0″
layer=”"
document.calc.operator.value=”"
document.calc.bracket.value=”"
}
//转换键
function inputChangCarry(newcarry)
{
endNumber=true
document.calc.display.value=(decto(todec(document.calc.display.value,carry),newcarry))
carry=newcarry
document.calc.sin.disabled=(carry!=10)
document.calc.cos.disabled=(carry!=10)
document.calc.tan.disabled=(carry!=10)
document.calc.bt.disabled=(carry!=10)
document.calc.pi.disabled=(carry!=10)
document.calc.e.disabled=(carry!=10)
document.calc.kp.disabled=(carry!=10)
document.calc.k2.disabled=(carry<=2)
document.calc.k3.disabled=(carry<=2)
document.calc.k4.disabled=(carry<=2)
document.calc.k5.disabled=(carry<=2)
document.calc.k6.disabled=(carry<=2)
document.calc.k7.disabled=(carry<=2)
document.calc.k8.disabled=(carry<=8)
document.calc.k9.disabled=(carry<=8)
document.calc.ka.disabled=(carry<=10)
document.calc.kb.disabled=(carry<=10)
document.calc.kc.disabled=(carry<=10)
document.calc.kd.disabled=(carry<=10)
document.calc.ke.disabled=(carry<=10)
document.calc.kf.disabled=(carry<=10)
}
function inputChangAngle(angletype)
{
endNumber=true
angle=angletype
if (angle==”d”)
document.calc.display.value=radiansToDegress(document.calc.display.value)
else
document.calc.display.value=degressToRadians(document.calc.display.value)
endNumber=true
}
function inputshift()
{
if (document.calc.shiftf.checked)
{
document.calc.bt.value=”deg ”
document.calc.ln.value=”exp ”
document.calc.log.value=”expd “
if (document.calc.hypf.checked)
{
document.calc.sin.value=”ahs ”
document.calc.cos.value=”ahc ”
document.calc.tan.value=”aht ”
}
else
{
document.calc.sin.value=”asin “
document.calc.cos.value=”acos “
document.calc.tan.value=”atan “
}
document.calc.sqr.value=”x^.5 “
document.calc.cube.value=”x^.3 “
document.calc.floor.value=” 小数 “
}
else
{
document.calc.bt.value=”d.ms “
document.calc.ln.value=” ln ”
document.calc.log.value=” log “
if (document.calc.hypf.checked)
{
document.calc.sin.value=”hsin “
document.calc.cos.value=”hcos “
document.calc.tan.value=”htan “
}
else
{
document.calc.sin.value=”sin ”
document.calc.cos.value=”cos ”
document.calc.tan.value=”tan ”
}
document.calc.sqr.value=”x^2 ”
document.calc.cube.value=”x^3 ”
document.calc.floor.value=” 取整 “
}
}
//存储器部分
function clearmemory()
{
mem=0
document.calc.memory.value=” “
}
function getmemory()
{
endNumber=true
document.calc.display.value=decto(mem,carry)
}
function putmemory()
{
endNumber=true
if (document.calc.display.value!=0)
{
mem=todec(document.calc.display.value,carry)
document.calc.memory.value=” M “
}
else
document.calc.memory.value=” “
}
function addmemory()
{
endNumber=true
mem=parseFloat(mem)+parseFloat(todec(document.calc.display.value,carry))
if (mem==0)
document.calc.memory.value=” “
else
document.calc.memory.value=” M “
}
function multimemory()
{
endNumber=true
mem=parseFloat(mem)*parseFloat(todec(document.calc.display.value,carry))
if (mem==0)
document.calc.memory.value=” “
else
document.calc.memory.value=” M “
}
//十进制转换
function todec(num,oldcarry)
{
if (oldcarry==10 || num==0) return(num)
var neg=(num.charAt(0)==”-”)
if (neg) num=num.substr(1)
var newnum=0
for (var index=1;index<=num.length;index++)
newnum=newnum*oldcarry+hexnum.indexOf(num.charAt(index-1))
if (neg)
newnum=-newnum
return(newnum)
}
function decto(num,newcarry)
{
var neg=(num<0)
if (newcarry==10 || num==0) return(num)
num=”"+Math.abs(num)
var newnum=”"
while (num!=0)
{
newnum=hexnum.charAt(num%newcarry)+newnum
num=Math.floor(num/newcarry)
}
if (neg)
newnum=”-”+newnum
return(newnum)
}
//表达式解析
function parse(string)
{
if (string.match(/^(.*\d[\+\-\*\/\%\^\&\|x\<])?([+-]?[0-9a-f\.]+)([\+\-\*\/\%\^\&\|x\<])([+-]?[0-9a-f\.]+)$/))
return(RegExp.$1+cypher(RegExp.$2,RegExp.$3,RegExp.$4))
else
return(string)
}
//数学运算和位运算
function cypher(left,join,right)
{
left=todec(left,carry)
right=todec(right,carry)
if (join==”+”)
return(decto(parseFloat(left)+parseFloat(right),carry))
if (join==”-”)
return(decto(left-right,carry))
if (join==”*”)
return(decto(left*right,carry))
if (join==”/” && right!=0)
return(decto(left/right,carry))
if (join==”%”)
return(decto(left%right,carry))
if (join==”&”)
return(decto(left&right,carry))
if (join==”|”)
return(decto(left|right,carry))
if (join==”^”)
return(decto(Math.pow(left,right),carry))
if (join==”x”)
return(decto(left^right,carry))
if (join==”<”)
return(decto(left<<right,carry))
alert(“除数不能为零”)
return(left)
}
//函数计算
function funcalc(fun,num)
{
with(Math)
{
if (fun==”pi”)
return(PI)
if (fun==”e”)
return(E)
if (fun==”abs”)
return(abs(num))
if (fun==”ceil”)
return(ceil(num))
if (fun==”round”)
return(round(num))
if (fun==”floor”)
return(floor(num))
if (fun==”deci”)
return(num-floor(num))
if (fun==”ln” && num>0)
return(log(num))
if (fun==”exp”)
return(exp(num))
if (fun==”log” && num>0)
return(log(num)*LOG10E)
if (fun==”expdec”)
return(pow(10,num))
if (fun==”cube”)
return(num*num*num)
if (fun==”cubt”)
return(pow(num,1/3))
if (fun==”sqr”)
return(num*num)
if (fun==”sqrt” && num>=0)
return(sqrt(num))
if (fun==”!”)
return(factorial(num))
if (fun==”recip” && num!=0)
return(1/num)
if (fun==”dms”)
return(dms(num))
if (fun==”deg”)
return(deg(num))
if (fun==”~”)
return(~num)
if (angle==”d”)
{
if (fun==”sin”)
return(sin(degressToRadians(num)))
if (fun==”cos”)
return(cos(degressToRadians(num)))
if (fun==”tan”)
return(tan(degressToRadians(num)))
if (fun==”arcsin” && abs(num)<=1)
return(radiansToDegress(asin(num)))
if (fun==”arccos” && abs(num)<=1)
return(radiansToDegress(acos(num)))
if (fun==”arctan”)
return(radiansToDegress(atan(num)))
}
else
{
if (fun==”sin”)
return(sin(num))
if (fun==”cos”)
return(cos(num))
if (fun==”tan”)
return(tan(num))
if (fun==”arcsin” && abs(num)<=1)
return(asin(num))
if (fun==”arccos” && abs(num)<=1)
return(acos(num))
if (fun==”arctan”)
return(atan(num))
}
if (fun==”hypsin”)
return((exp(num)-exp(0-num))*0.5)
if (fun==”hypcos”)
return((exp(num)+exp(-num))*0.5)
if (fun==”hyptan”)
return((exp(num)-exp(-num))/(exp(num)+exp(-num)))
if (fun==”ahypsin” | fun==”hypcos” | fun==”hyptan”)
{
alert(“对不起,公式还没有查到!”)
return(num)
}
alert(“超出函数定义范围”)
return(num)
}
}
function factorial(n)
{
n=Math.abs(parseInt(n))
var fac=1
for (;n>0;n-=1)
fac*=n
return(fac)
}
function dms(n)
{
var neg=(n<0)
with(Math)
{
n=abs(n)
var d=floor(n)
var m=floor(60*(n-d))
var s=(n-d)*60-m
}
var dms=d+m/100+s*0.006
if (neg)
dms=-dms
return(dms)
}
function deg(n)
{
var neg=(n<0)
with(Math)
{
n=abs(n)
var d=floor(n)
var m=floor((n-d)*100)
var s=(n-d)*100-m
}
var deg=d+m/60+s/36
if (neg)
deg=-deg
return(deg)
}
function degressToRadians(degress)
{
return(degress*Math.PI/180)
}
function radiansToDegress(radians)
{
return(radians*180/Math.PI)
}
//界面
//–>
</SCRIPT>
<body bgcolor=”fcfff7″ leftmargin=”0″ topmargin=”0″ marginwidth=”0″>
<br>
<DIV align=center>
<FORM name=calc>
<TABLE width=650 height=250 bgcolor=”#E6F2E7″ style=”border-width:1px 1px 1px 1px;border-style:solid;border-color:#8AB78A;”>
<TBODY>
<TR>
<TD height=50 bgcolor=”#E6F2E7″>
<TABLE width=100%>
<TBODY>
<TR><TD align=center><FONT color=#205001>计算器 </FONT></TD></TR>
<TR><TD height=”35″ align=center>
<INPUT name=display readOnly size=50 value=0 style=” font-size:18px;”></TD>
</TR></TBODY></TABLE></TD>
</TR>
<TR>
<TD bgcolor=”#E6F2E7″>
<TABLE width=100% style=”border-width:1px 0px 0px 0px;border-style:solid;border-color:#8AB78A;”>
<TBODY>
<TR>
<TD style=”color:#205001;”><INPUT name=carry onclick=inputChangCarry(16)
type=radio> 十六进制 <INPUT CHECKED name=carry
onclick=inputChangCarry(10) type=radio> 十进制 <INPUT name=carry
onclick=inputChangCarry(8) type=radio> 八进制 <INPUT name=carry
onclick=inputChangCarry(2) type=radio> 二进制 </TD>
<TD width=”187″ style=”color:#205001;”><INPUT CHECKED name=angle
onclick=”inputChangAngle(‘d’)” type=radio value=d>
角度制
<INPUT
name=angle onclick=”inputChangAngle(‘r’)” type=radio value=r>
弧度制 </TD>
</TR></TBODY></TABLE>
<TABLE width=100%>
<TBODY>
<TR>
<TD width=170 style=”color:#205001;”><INPUT name=shiftf onclick=inputshift()
type=checkbox>上档功能 <INPUT name=hypf onclick=inputshift()
type=checkbox>双曲函数 </TD>
<TD width=”154″ align=”center”><INPUT name=bracket readOnly size=3
style=”BACKGROUND-COLOR: lightgrey; line-height:24px;”> <INPUT name=memory readOnly
size=3 style=”BACKGROUND-COLOR: lightgrey; line-height:24px;”> <INPUT name=operator
readOnly size=3 style=”BACKGROUND-COLOR: lightgrey; “> </TD>
<TD align=”right”><INPUT onclick=backspace() style=”COLOR: B50506; line-height:24px;” type=button value=” 退格 ”>
<INPUT onclick=”document.calc.display.value = 0 ” style=”COLOR: #B50506; line-height:24px;” type=button value=” 清屏 ”>
<INPUT onclick=clearall() style=”COLOR: #B50506; line-height:24px;” type=button value=” 全清 ”> </TD>
</TR></TBODY></TABLE>
<TABLE width=100%>
<TBODY>
<TR>
<TD>
<TABLE>
<TBODY>
<TR align=middle>
<TD><INPUT name=pi onclick=”inputfunction(‘pi’,'pi’)” style=”COLOR: #1919CD; line-height:24px;” type=button value=” PI ”>
</TD>
<TD><INPUT name=e onclick=”inputfunction(‘e’,'e’)” style=”COLOR: #1919CD; line-height:24px;” type=button value=” E ”>
</TD>
<TD><INPUT name=bt onclick=”inputfunction(‘dms’,'deg’)” style=”COLOR: #D316D3; line-height:24px;” type=button value=” d.ms “>
</TD></TR>
<TR align=middle>
<TD><INPUT onclick=addbracket() style=”COLOR: #D316D3; line-height:24px;” type=button value=” ( ”>
</TD>
<TD><INPUT onclick=disbracket() style=”COLOR: #D316D3; line-height:24px;” type=button value=” ) ”>
</TD>
<TD><INPUT name=ln onclick=”inputfunction(‘ln’,'exp’)” style=”COLOR: #D316D3; line-height:24px;” type=button value=” ln ”>
</TD></TR>
<TR align=middle>
<TD><INPUT name=sin onclick=”inputtrig(‘sin’,'arcsin’,'hypsin’,'ahypsin’)” style=”COLOR: #D316D3; line-height:24px;” type=button value=”sin ”>
</TD>
<TD><INPUT onclick=”operation(‘^’,7)” style=”COLOR: #D316D3; line-height:24px;” type=button value=”x^y ”>
</TD>
<TD><INPUT name=log onclick=”inputfunction(‘log’,'expdec’)” style=”COLOR: #D316D3; line-height:24px;” type=button value=” log ”>
</TD></TR>
<TR align=middle>
<TD><INPUT name=cos onclick=”inputtrig(‘cos’,'arccos’,'hypcos’,'ahypcos’)” style=”COLOR: #D316D3; line-height:24px;” type=button value=”cos ”>
</TD>
<TD><INPUT name=cube onclick=”inputfunction(‘cube’,'cubt’)” style=”COLOR: #D316D3; line-height:24px;” type=button value=”x^3 ”>
</TD>
<TD><INPUT onclick=”inputfunction(‘!’,'!’)” style=”COLOR: #D316D3; line-height:24px;” type=button value=” n! ”>
</TD></TR>
<TR align=middle>
<TD><INPUT name=tan onclick=”inputtrig(‘tan’,'arctan’,'hyptan’,'ahyptan’)” style=”COLOR: #D316D3; line-height:24px;” type=button value=”tan ”>
</TD>
<TD><INPUT name=sqr onclick=”inputfunction(‘sqr’,'sqrt’)” style=”COLOR: #D316D3; line-height:24px;” type=button value=”x^2 ”>
</TD>
<TD><INPUT onclick=”inputfunction(‘recip’,'recip’)” style=”COLOR: #D316D3; line-height:24px;” type=button value=” 1/x ”>
</TD></TR></TBODY></TABLE></TD>
<TD width=30></TD>
<TD>
<TABLE>
<TBODY>
<TR>
<TD align=”center”><INPUT onclick=putmemory() style=”COLOR: #B50506; line-height:24px;” type=button value=” 储存 “> </TD>
</TR>
<TR>
<TD><INPUT onclick=getmemory() style=”COLOR: #B50506; line-height:24px;” type=button value=” 取存 “>
</TD></TR>
<TR>
<TD><INPUT onclick=addmemory() style=”COLOR: #B50506; line-height:24px;” type=button value=” 累存 “>
</TD></TR>
<TR>
<TD><INPUT onclick=multimemory() style=”COLOR: #B50506; line-height:24px;” type=button value=” 积存 “>
</TD></TR>
<TR>
<TD height=33><INPUT onclick=clearmemory() style=”COLOR: #B50506; line-height:24px;” type=button value=” 清存 “>
</TD></TR></TBODY></TABLE></TD>
<TD width=30></TD>
<TD>
<TABLE>
<TBODY>
<TR align=middle>
<TD><INPUT name=k7 onclick=”inputkey(’7′)” style=”COLOR: #1919CD; font-size:16px; line-height:24px; ” type=button value=” 7 ”>
</TD>
<TD><INPUT name=k8 onclick=”inputkey(’8′)” style=”COLOR: #1919CD; font-size:16px; line-height:24px;” type=button value=” 8 ”>
</TD>
<TD><INPUT name=k9 onclick=”inputkey(’9′)” style=”COLOR: #1919CD; font-size:16px; line-height:24px;” type=button value=” 9 ”>
</TD>
<TD><INPUT onclick=”operation(‘/’,6)” style=”COLOR: #B50506; font-size:14px; line-height:24px;” type=button value=” / ”>
</TD>
<TD><INPUT onclick=”operation(‘%’,6)” style=”COLOR: #B50506; font-size:14px; line-height:24px;” type=button value=” 取余 “>
</TD>
<TD><INPUT onclick=”operation(‘&’,3)” style=”COLOR: #B50506; font-size:14px; line-height:24px;” type=button value=” 与 ”>
</TD></TR>
<TR align=middle>
<TD><INPUT name=k4 onclick=”inputkey(’4′)” style=”COLOR: #1919CD; font-size:16px; line-height:24px;” type=button value=” 4 ”>
</TD>
<TD><INPUT name=k5 onclick=”inputkey(’5′)” style=”COLOR: #1919CD; font-size:16px; line-height:24px;” type=button value=” 5 ”>
</TD>
<TD><INPUT name=k6 onclick=”inputkey(’6′)” style=”COLOR: #1919CD; font-size:16px; line-height:24px;” type=button value=” 6 ”>
</TD>
<TD><INPUT onclick=”operation(‘*’,6)” style=”COLOR: #B50506; font-size:14px; line-height:24px;” type=button value=” * ”>
</TD>
<TD><INPUT name=floor onclick=”inputfunction(‘floor’,'deci’)” style=”COLOR: #B50506; font-size:14px; line-height:24px;” type=button value=” 取整 “>
</TD>
<TD><INPUT onclick=”operation(‘|’,1)” style=”COLOR: #B50506; font-size:14px; line-height:24px;” type=button value=” 或 ”>
</TD></TR>
<TR align=middle>
<TD><INPUT onclick=”inputkey(’1′)” style=”COLOR: #1919CD; font-size:16px; line-height:24px;” type=button value=” 1 ”>
</TD>
<TD><INPUT name=k2 onclick=”inputkey(’2′)” style=”COLOR: #1919CD; font-size:16px; line-height:24px;” type=button value=” 2 ”></TD>
<TD><INPUT name=k3 onclick=”inputkey(’3′)” style=”COLOR: #1919CD; font-size:16px; line-height:24px;” type=button value=” 3 ”>
</TD>
<TD><INPUT onclick=”operation(‘-’,5)” style=”COLOR: #B50506; font-size:14px; line-height:24px;” type=button value=” - ”>
</TD>
<TD><INPUT onclick=”operation(‘<’,4)” style=”COLOR: #B50506; font-size:14px; line-height:24px;” type=button value=” 左移 “>
</TD>
<TD><INPUT onclick=”inputfunction(‘~’,'~’)” style=”COLOR: #B50506; font-size:14px; line-height:24px;” type=button value=” 非 ”>
</TD></TR>
<TR align=middle>
<TD><INPUT onclick=”inputkey(’0′)” style=”COLOR: #1919CD; font-size:16px; line-height:24px;” type=button value=” 0 ”>
</TD>
<TD><INPUT onclick=changeSign() style=”COLOR: #1919CD; font-size:16px; line-height:24px;” type=button value=” +/- “>
</TD>
<TD><INPUT name=kp onclick=”inputkey(‘.’)” style=”COLOR: #1919CD; font-size:16px; line-height:24px;” type=button value=” . ”>
</TD>
<TD><INPUT onclick=”operation(‘+’,5)” style=”COLOR: #B50506; font-size:14px; line-height:24px;” type=button value=” + ”>
</TD>
<TD><INPUT onclick=result() style=”COLOR: #B50506; font-size:14px; line-height:24px;” type=button value=” = ”>
</TD>
<TD><INPUT onclick=”operation(‘x’,2)” style=”COLOR: #B50506; font-size:14px; line-height:24px;” type=button value=” 异或 “>
</TD></TR>
<TR align=middle>
<TD><INPUT disabled name=ka onclick=”inputkey(‘a’)” style=”COLOR: #1919CD; font-size:14px; line-height:24px;” type=button value=” A ”>
</TD>
<TD><INPUT disabled name=kb onclick=”inputkey(‘b’)” style=”COLOR: #1919CD; font-size:14px; line-height:24px;” type=button value=” B ”>
</TD>
<TD><INPUT disabled name=kc onclick=”inputkey(‘c’)” style=”COLOR: #1919CD; font-size:14px; line-height:24px;” type=button value=” C ”>
</TD>
<TD><INPUT disabled name=kd onclick=”inputkey(‘d’)” style=”COLOR: #1919CD; font-size:14px; line-height:24px;” type=button value=” D ”>
</TD>
<TD align=”center”><INPUT disabled name=ke onclick=”inputkey(‘e’)” style=”COLOR: #1919CD; font-size:14px; line-height:24px;” type=button value=” E ”> </TD>
<TD align=”center”><INPUT disabled name=kf onclick=”inputkey(‘f’)” style=”COLOR: #1919CD; font-size:14px; line-height:24px;” type=button value=” F ”> </TD>
</TR></TBODY></TABLE></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></FORM></DIV>
</body>
</html>
<html><head><meta http-equiv=”Content-Type” content=”text/html; charset=gb2312″><style type=text/css> td,body { font-size: 13px;}body{ margin-top:0px; margin-left:0px; margin-right:0px; background-color: #fcfff7;} </style><title>计算器</title><SCRIPT language=javascript><!–var endNumber=truevar mem=0var carry=10var hexnum=”0123456789abcdef”var angle=”d”var stack=”"var level=”0″var layer=0//数字键function inputkey(key){ var index=key.charCodeAt(0); if ((carry==2 && (index==48 || index==49)) || (carry==8 && index>=48 && index<=55) || (carry==10 && (index>=48 && index<=57 || index==46)) || (carry==16 && ((index>=48 && index<=57) || (index>=97 && index<=102)))) if(endNumber) { endNumber=false document.calc.display.value = key } else if(document.calc.display.value == null || document.calc.display.value == “0″) document.calc.display.value = key else document.calc.display.value += key}function changeSign(){ if (document.calc.display.value!=”0″) if(document.calc.display.value.substr(0,1) == “-”) document.calc.display.value = document.calc.display.value.substr(1) else document.calc.display.value = “-” + document.calc.display.value}//函数键function inputfunction(fun,shiftfun){ endNumber=true if (document.calc.shiftf.checked) document.calc.display.value=decto(funcalc(shiftfun,(todec(document.calc.display.value,carry))),carry) else document.calc.display.value=decto(funcalc(fun,(todec(document.calc.display.value,carry))),carry) document.calc.shiftf.checked=false document.calc.hypf.checked=false inputshift()}function inputtrig(trig,arctrig,hyp,archyp){ if (document.calc.hypf.checked) inputfunction(hyp,archyp) else inputfunction(trig,arctrig)}//运算符function operation(join,newlevel){ endNumber=true var temp=stack.substr(stack.lastIndexOf(“(“)+1)+document.calc.display.value while (newlevel!=0 && (newlevel<=(level.charAt(level.length-1)))) { temp=parse(temp) level=level.slice(0,-1) } if (temp.match(/^(.*\d[\+\-\*\/\%\^\&\|x])?([+-]?[0-9a-f\.]+)$/)) document.calc.display.value=RegExp.$2 stack=stack.substr(0,stack.lastIndexOf(“(“)+1)+temp+join document.calc.operator.value=” “+join+” ” level=level+newlevel }//括号function addbracket(){ endNumber=true document.calc.display.value=0 stack=stack+”(” document.calc.operator.value=” ” level=level+0 layer+=1 document.calc.bracket.value=”(=”+layer}function disbracket(){ endNumber=true var temp=stack.substr(stack.lastIndexOf(“(“)+1)+document.calc.display.value while ((level.charAt(level.length-1))>0) { temp=parse(temp) level=level.slice(0,-1) } document.calc.display.value=temp stack=stack.substr(0,stack.lastIndexOf(“(“)) document.calc.operator.value=” ” level=level.slice(0,-1)
layer-=1 if (layer>0) document.calc.bracket.value=”(=”+layer else document.calc.bracket.value=”"}//等号function result(){ endNumber=true while (layer>0) disbracket() var temp=stack+document.calc.display.value while ((level.charAt(level.length-1))>0) { temp=parse(temp) level=level.slice(0,-1) }
document.calc.display.value=temp document.calc.bracket.value=”" document.calc.operator.value=”" stack=”" level=”0″}//修改键function backspace(){ if (!endNumber) { if(document.calc.display.value.length>1) document.calc.display.value=document.calc.display.value.substring(0,document.calc.display.value.length – 1) else document.calc.display.value=0 }}function clearall(){ document.calc.display.value=0 endNumber=true stack=”" level=”0″ layer=”" document.calc.operator.value=”" document.calc.bracket.value=”"}//转换键function inputChangCarry(newcarry){ endNumber=true document.calc.display.value=(decto(todec(document.calc.display.value,carry),newcarry)) carry=newcarry
document.calc.sin.disabled=(carry!=10) document.calc.cos.disabled=(carry!=10) document.calc.tan.disabled=(carry!=10) document.calc.bt.disabled=(carry!=10) document.calc.pi.disabled=(carry!=10) document.calc.e.disabled=(carry!=10) document.calc.kp.disabled=(carry!=10) document.calc.k2.disabled=(carry<=2) document.calc.k3.disabled=(carry<=2) document.calc.k4.disabled=(carry<=2) document.calc.k5.disabled=(carry<=2) document.calc.k6.disabled=(carry<=2) document.calc.k7.disabled=(carry<=2) document.calc.k8.disabled=(carry<=8) document.calc.k9.disabled=(carry<=8) document.calc.ka.disabled=(carry<=10) document.calc.kb.disabled=(carry<=10) document.calc.kc.disabled=(carry<=10) document.calc.kd.disabled=(carry<=10) document.calc.ke.disabled=(carry<=10) document.calc.kf.disabled=(carry<=10) }function inputChangAngle(angletype){ endNumber=true angle=angletype if (angle==”d”) document.calc.display.value=radiansToDegress(document.calc.display.value) else document.calc.display.value=degressToRadians(document.calc.display.value) endNumber=true}
function inputshift(){ if (document.calc.shiftf.checked) { document.calc.bt.value=”deg ” document.calc.ln.value=”exp ” document.calc.log.value=”expd ” if (document.calc.hypf.checked) { document.calc.sin.value=”ahs ” document.calc.cos.value=”ahc ” document.calc.tan.value=”aht ” } else { document.calc.sin.value=”asin ” document.calc.cos.value=”acos ” document.calc.tan.value=”atan ” } document.calc.sqr.value=”x^.5 ” document.calc.cube.value=”x^.3 ” document.calc.floor.value=” 小数 ” } else { document.calc.bt.value=”d.ms ” document.calc.ln.value=” ln ” document.calc.log.value=” log “
if (document.calc.hypf.checked) { document.calc.sin.value=”hsin ” document.calc.cos.value=”hcos ” document.calc.tan.value=”htan ” } else { document.calc.sin.value=”sin ” document.calc.cos.value=”cos ” document.calc.tan.value=”tan ” } document.calc.sqr.value=”x^2 ” document.calc.cube.value=”x^3 ” document.calc.floor.value=” 取整 ” }
}//存储器部分
function clearmemory(){ mem=0 document.calc.memory.value=” “}
function getmemory(){ endNumber=true document.calc.display.value=decto(mem,carry)}
function putmemory(){ endNumber=true if (document.calc.display.value!=0) { mem=todec(document.calc.display.value,carry) document.calc.memory.value=” M ” } else document.calc.memory.value=” “}
function addmemory(){ endNumber=true mem=parseFloat(mem)+parseFloat(todec(document.calc.display.value,carry)) if (mem==0) document.calc.memory.value=” ” else document.calc.memory.value=” M “}
function multimemory(){ endNumber=true mem=parseFloat(mem)*parseFloat(todec(document.calc.display.value,carry)) if (mem==0) document.calc.memory.value=” ” else document.calc.memory.value=” M “}
//十进制转换
function todec(num,oldcarry){ if (oldcarry==10 || num==0) return(num) var neg=(num.charAt(0)==”-”) if (neg) num=num.substr(1) var newnum=0 for (var index=1;index<=num.length;index++) newnum=newnum*oldcarry+hexnum.indexOf(num.charAt(index-1)) if (neg) newnum=-newnum return(newnum)}
function decto(num,newcarry){ var neg=(num<0) if (newcarry==10 || num==0) return(num) num=”"+Math.abs(num) var newnum=”" while (num!=0) { newnum=hexnum.charAt(num%newcarry)+newnum num=Math.floor(num/newcarry) } if (neg) newnum=”-”+newnum return(newnum)}
//表达式解析
function parse(string){ if (string.match(/^(.*\d[\+\-\*\/\%\^\&\|x\<])?([+-]?[0-9a-f\.]+)([\+\-\*\/\%\^\&\|x\<])([+-]?[0-9a-f\.]+)$/)) return(RegExp.$1+cypher(RegExp.$2,RegExp.$3,RegExp.$4)) else return(string)}
//数学运算和位运算
function cypher(left,join,right){ left=todec(left,carry) right=todec(right,carry) if (join==”+”) return(decto(parseFloat(left)+parseFloat(right),carry)) if (join==”-”) return(decto(left-right,carry)) if (join==”*”) return(decto(left*right,carry)) if (join==”/” && right!=0) return(decto(left/right,carry)) if (join==”%”) return(decto(left%right,carry)) if (join==”&”) return(decto(left&right,carry)) if (join==”|”) return(decto(left|right,carry)) if (join==”^”) return(decto(Math.pow(left,right),carry))
if (join==”x”) return(decto(left^right,carry)) if (join==”<”) return(decto(left<<right,carry)) alert(“除数不能为零”) return(left)}
//函数计算
function funcalc(fun,num){ with(Math) { if (fun==”pi”) return(PI) if (fun==”e”) return(E)
if (fun==”abs”) return(abs(num)) if (fun==”ceil”) return(ceil(num)) if (fun==”round”) return(round(num))
if (fun==”floor”) return(floor(num)) if (fun==”deci”) return(num-floor(num))
if (fun==”ln” && num>0) return(log(num)) if (fun==”exp”) return(exp(num)) if (fun==”log” && num>0) return(log(num)*LOG10E) if (fun==”expdec”) return(pow(10,num))
if (fun==”cube”) return(num*num*num) if (fun==”cubt”) return(pow(num,1/3)) if (fun==”sqr”) return(num*num) if (fun==”sqrt” && num>=0) return(sqrt(num))
if (fun==”!”) return(factorial(num))
if (fun==”recip” && num!=0) return(1/num) if (fun==”dms”) return(dms(num)) if (fun==”deg”) return(deg(num))
if (fun==”~”) return(~num) if (angle==”d”) { if (fun==”sin”) return(sin(degressToRadians(num))) if (fun==”cos”) return(cos(degressToRadians(num))) if (fun==”tan”) return(tan(degressToRadians(num)))
if (fun==”arcsin” && abs(num)<=1) return(radiansToDegress(asin(num))) if (fun==”arccos” && abs(num)<=1) return(radiansToDegress(acos(num))) if (fun==”arctan”) return(radiansToDegress(atan(num))) } else { if (fun==”sin”) return(sin(num)) if (fun==”cos”) return(cos(num)) if (fun==”tan”) return(tan(num))
if (fun==”arcsin” && abs(num)<=1) return(asin(num)) if (fun==”arccos” && abs(num)<=1) return(acos(num)) if (fun==”arctan”) return(atan(num)) } if (fun==”hypsin”) return((exp(num)-exp(0-num))*0.5) if (fun==”hypcos”) return((exp(num)+exp(-num))*0.5) if (fun==”hyptan”) return((exp(num)-exp(-num))/(exp(num)+exp(-num)))
if (fun==”ahypsin” | fun==”hypcos” | fun==”hyptan”) { alert(“对不起,公式还没有查到!”) return(num) } alert(“超出函数定义范围”) return(num) }}
function factorial(n){ n=Math.abs(parseInt(n)) var fac=1 for (;n>0;n-=1) fac*=n return(fac)}
function dms(n){ var neg=(n<0) with(Math) { n=abs(n) var d=floor(n) var m=floor(60*(n-d)) var s=(n-d)*60-m } var dms=d+m/100+s*0.006 if (neg) dms=-dms return(dms)}
function deg(n){ var neg=(n<0) with(Math) { n=abs(n) var d=floor(n) var m=floor((n-d)*100) var s=(n-d)*100-m } var deg=d+m/60+s/36 if (neg) deg=-deg return(deg)}
function degressToRadians(degress){ return(degress*Math.PI/180)}
function radiansToDegress(radians){ return(radians*180/Math.PI)}
//界面//–></SCRIPT><body bgcolor=”fcfff7″ leftmargin=”0″ topmargin=”0″ marginwidth=”0″><br><DIV align=center><FORM name=calc><TABLE width=650 height=250 bgcolor=”#E6F2E7″ style=”border-width:1px 1px 1px 1px;border-style:solid;border-color:#8AB78A;”> <TBODY> <TR> <TD height=50 bgcolor=”#E6F2E7″> <TABLE width=100%> <TBODY> <TR><TD align=center><FONT color=#205001>计算器 </FONT></TD></TR> <TR><TD height=”35″ align=center> <INPUT name=display readOnly size=50 value=0 style=” font-size:18px;”></TD> </TR></TBODY></TABLE></TD> </TR> <TR> <TD bgcolor=”#E6F2E7″> <TABLE width=100% style=”border-width:1px 0px 0px 0px;border-style:solid;border-color:#8AB78A;”> <TBODY> <TR> <TD style=”color:#205001;”><INPUT name=carry onclick=inputChangCarry(16) type=radio> 十六进制 <INPUT CHECKED name=carry onclick=inputChangCarry(10) type=radio> 十进制 <INPUT name=carry onclick=inputChangCarry(8) type=radio> 八进制 <INPUT name=carry onclick=inputChangCarry(2) type=radio> 二进制 </TD> <TD width=”187″ style=”color:#205001;”><INPUT CHECKED name=angle onclick=”inputChangAngle(‘d’)” type=radio value=d> 角度制 <INPUT name=angle onclick=”inputChangAngle(‘r’)” type=radio value=r> 弧度制 </TD> </TR></TBODY></TABLE> <TABLE width=100%> <TBODY> <TR> <TD width=170 style=”color:#205001;”><INPUT name=shiftf onclick=inputshift() type=checkbox>上档功能 <INPUT name=hypf onclick=inputshift() type=checkbox>双曲函数 </TD> <TD width=”154″ align=”center”><INPUT name=bracket readOnly size=3 style=”BACKGROUND-COLOR: lightgrey; line-height:24px;”> <INPUT name=memory readOnly size=3 style=”BACKGROUND-COLOR: lightgrey; line-height:24px;”> <INPUT name=operator readOnly size=3 style=”BACKGROUND-COLOR: lightgrey; “> </TD> <TD align=”right”><INPUT onclick=backspace() style=”COLOR: B50506; line-height:24px;” type=button value=” 退格 ”> <INPUT onclick=”document.calc.display.value = 0 ” style=”COLOR: #B50506; line-height:24px;” type=button value=” 清屏 ”> <INPUT onclick=clearall() style=”COLOR: #B50506; line-height:24px;” type=button value=” 全清 ”> </TD> </TR></TBODY></TABLE> <TABLE width=100%> <TBODY> <TR> <TD> <TABLE> <TBODY> <TR align=middle> <TD><INPUT name=pi onclick=”inputfunction(‘pi’,'pi’)” style=”COLOR: #1919CD; line-height:24px;” type=button value=” PI ”> </TD> <TD><INPUT name=e onclick=”inputfunction(‘e’,'e’)” style=”COLOR: #1919CD; line-height:24px;” type=button value=” E ”> </TD> <TD><INPUT name=bt onclick=”inputfunction(‘dms’,'deg’)” style=”COLOR: #D316D3; line-height:24px;” type=button value=” d.ms “> </TD></TR> <TR align=middle> <TD><INPUT onclick=addbracket() style=”COLOR: #D316D3; line-height:24px;” type=button value=” ( ”> </TD> <TD><INPUT onclick=disbracket() style=”COLOR: #D316D3; line-height:24px;” type=button value=” ) ”> </TD> <TD><INPUT name=ln onclick=”inputfunction(‘ln’,'exp’)” style=”COLOR: #D316D3; line-height:24px;” type=button value=” ln ”> </TD></TR> <TR align=middle> <TD><INPUT name=sin onclick=”inputtrig(‘sin’,'arcsin’,'hypsin’,'ahypsin’)” style=”COLOR: #D316D3; line-height:24px;” type=button value=”sin ”> </TD> <TD><INPUT onclick=”operation(‘^’,7)” style=”COLOR: #D316D3; line-height:24px;” type=button value=”x^y ”> </TD> <TD><INPUT name=log onclick=”inputfunction(‘log’,'expdec’)” style=”COLOR: #D316D3; line-height:24px;” type=button value=” log ”> </TD></TR> <TR align=middle> <TD><INPUT name=cos onclick=”inputtrig(‘cos’,'arccos’,'hypcos’,'ahypcos’)” style=”COLOR: #D316D3; line-height:24px;” type=button value=”cos ”> </TD> <TD><INPUT name=cube onclick=”inputfunction(‘cube’,'cubt’)” style=”COLOR: #D316D3; line-height:24px;” type=button value=”x^3 ”> </TD> <TD><INPUT onclick=”inputfunction(‘!’,'!’)” style=”COLOR: #D316D3; line-height:24px;” type=button value=” n! ”> </TD></TR> <TR align=middle> <TD><INPUT name=tan onclick=”inputtrig(‘tan’,'arctan’,'hyptan’,'ahyptan’)” style=”COLOR: #D316D3; line-height:24px;” type=button value=”tan ”> </TD> <TD><INPUT name=sqr onclick=”inputfunction(‘sqr’,'sqrt’)” style=”COLOR: #D316D3; line-height:24px;” type=button value=”x^2 ”> </TD> <TD><INPUT onclick=”inputfunction(‘recip’,'recip’)” style=”COLOR: #D316D3; line-height:24px;” type=button value=” 1/x ”> </TD></TR></TBODY></TABLE></TD> <TD width=30></TD> <TD> <TABLE> <TBODY> <TR> <TD align=”center”><INPUT onclick=putmemory() style=”COLOR: #B50506; line-height:24px;” type=button value=” 储存 “> </TD> </TR> <TR> <TD><INPUT onclick=getmemory() style=”COLOR: #B50506; line-height:24px;” type=button value=” 取存 “> </TD></TR> <TR> <TD><INPUT onclick=addmemory() style=”COLOR: #B50506; line-height:24px;” type=button value=” 累存 “> </TD></TR> <TR> <TD><INPUT onclick=multimemory() style=”COLOR: #B50506; line-height:24px;” type=button value=” 积存 “> </TD></TR> <TR> <TD height=33><INPUT onclick=clearmemory() style=”COLOR: #B50506; line-height:24px;” type=button value=” 清存 “> </TD></TR></TBODY></TABLE></TD> <TD width=30></TD> <TD> <TABLE> <TBODY> <TR align=middle> <TD><INPUT name=k7 onclick=”inputkey(’7′)” style=”COLOR: #1919CD; font-size:16px; line-height:24px; ” type=button value=” 7 ”> </TD> <TD><INPUT name=k8 onclick=”inputkey(’8′)” style=”COLOR: #1919CD; font-size:16px; line-height:24px;” type=button value=” 8 ”> </TD> <TD><INPUT name=k9 onclick=”inputkey(’9′)” style=”COLOR: #1919CD; font-size:16px; line-height:24px;” type=button value=” 9 ”> </TD> <TD><INPUT onclick=”operation(‘/’,6)” style=”COLOR: #B50506; font-size:14px; line-height:24px;” type=button value=” / ”> </TD> <TD><INPUT onclick=”operation(‘%’,6)” style=”COLOR: #B50506; font-size:14px; line-height:24px;” type=button value=” 取余 “> </TD> <TD><INPUT onclick=”operation(‘&’,3)” style=”COLOR: #B50506; font-size:14px; line-height:24px;” type=button value=” 与 ”> </TD></TR> <TR align=middle> <TD><INPUT name=k4 onclick=”inputkey(’4′)” style=”COLOR: #1919CD; font-size:16px; line-height:24px;” type=button value=” 4 ”> </TD> <TD><INPUT name=k5 onclick=”inputkey(’5′)” style=”COLOR: #1919CD; font-size:16px; line-height:24px;” type=button value=” 5 ”> </TD> <TD><INPUT name=k6 onclick=”inputkey(’6′)” style=”COLOR: #1919CD; font-size:16px; line-height:24px;” type=button value=” 6 ”> </TD> <TD><INPUT onclick=”operation(‘*’,6)” style=”COLOR: #B50506; font-size:14px; line-height:24px;” type=button value=” * ”> </TD> <TD><INPUT name=floor onclick=”inputfunction(‘floor’,'deci’)” style=”COLOR: #B50506; font-size:14px; line-height:24px;” type=button value=” 取整 “> </TD> <TD><INPUT onclick=”operation(‘|’,1)” style=”COLOR: #B50506; font-size:14px; line-height:24px;” type=button value=” 或 ”> </TD></TR> <TR align=middle> <TD><INPUT onclick=”inputkey(’1′)” style=”COLOR: #1919CD; font-size:16px; line-height:24px;” type=button value=” 1 ”> </TD> <TD><INPUT name=k2 onclick=”inputkey(’2′)” style=”COLOR: #1919CD; font-size:16px; line-height:24px;” type=button value=” 2 ”></TD> <TD><INPUT name=k3 onclick=”inputkey(’3′)” style=”COLOR: #1919CD; font-size:16px; line-height:24px;” type=button value=” 3 ”> </TD> <TD><INPUT onclick=”operation(‘-’,5)” style=”COLOR: #B50506; font-size:14px; line-height:24px;” type=button value=” - ”> </TD> <TD><INPUT onclick=”operation(‘<’,4)” style=”COLOR: #B50506; font-size:14px; line-height:24px;” type=button value=” 左移 “> </TD> <TD><INPUT onclick=”inputfunction(‘~’,'~’)” style=”COLOR: #B50506; font-size:14px; line-height:24px;” type=button value=” 非 ”> </TD></TR> <TR align=middle> <TD><INPUT onclick=”inputkey(’0′)” style=”COLOR: #1919CD; font-size:16px; line-height:24px;” type=button value=” 0 ”> </TD> <TD><INPUT onclick=changeSign() style=”COLOR: #1919CD; font-size:16px; line-height:24px;” type=button value=” +/- “> </TD> <TD><INPUT name=kp onclick=”inputkey(‘.’)” style=”COLOR: #1919CD; font-size:16px; line-height:24px;” type=button value=” . ”> </TD> <TD><INPUT onclick=”operation(‘+’,5)” style=”COLOR: #B50506; font-size:14px; line-height:24px;” type=button value=” + ”> </TD> <TD><INPUT onclick=result() style=”COLOR: #B50506; font-size:14px; line-height:24px;” type=button value=” = ”> </TD> <TD><INPUT onclick=”operation(‘x’,2)” style=”COLOR: #B50506; font-size:14px; line-height:24px;” type=button value=” 异或 “> </TD></TR> <TR align=middle> <TD><INPUT disabled name=ka onclick=”inputkey(‘a’)” style=”COLOR: #1919CD; font-size:14px; line-height:24px;” type=button value=” A ”> </TD> <TD><INPUT disabled name=kb onclick=”inputkey(‘b’)” style=”COLOR: #1919CD; font-size:14px; line-height:24px;” type=button value=” B ”> </TD> <TD><INPUT disabled name=kc onclick=”inputkey(‘c’)” style=”COLOR: #1919CD; font-size:14px; line-height:24px;” type=button value=” C ”> </TD> <TD><INPUT disabled name=kd onclick=”inputkey(‘d’)” style=”COLOR: #1919CD; font-size:14px; line-height:24px;” type=button value=” D ”> </TD> <TD align=”center”><INPUT disabled name=ke onclick=”inputkey(‘e’)” style=”COLOR: #1919CD; font-size:14px; line-height:24px;” type=button value=” E ”> </TD> <TD align=”center”><INPUT disabled name=kf onclick=”inputkey(‘f’)” style=”COLOR: #1919CD; font-size:14px; line-height:24px;” type=button value=” F ”> </TD> </TR></TBODY></TABLE></TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE></FORM></DIV></body></html>