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在线计算器
2020-12-01 10:00: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">

<html>
<head>
      <meta http-equiv="Content-Type" content="text/html; charset=gbk">
      <title>在线计算器</title>
<style type="text/css" compress>
      p,dl,dd,div,h1,h2,table,td,th,ul,ol,li,img,form,input{margin:0;padding:0}
      a:link{color:#261cdc}
      img{border:none}
      body{margin:6px 0 0 0;background-color:#fff;color:#000;font-family:arial,\5b8b\4f53;}
      #head{margin-left:8px;width:670px;height:54px}
      #head_content{float:left;width:100%;font-size:12px}
      #head_content_inner{margin: 0 100px 0 146px;zoom:1; _margin-left:0px}
      #nav{margin:1px 0 4px;font-size:14px;}
      #nav a{color:#261cdc}
      #kw{font-size:16px;font-family:arial;width:333px}
      #logo{float:left;width:146px; _margin-right:-3px}
      #gaoji{float:right;width:100px;margin-left:-100px;padding-top:26px;font-size:12px;}
      #tp{clear:both;font-size:12px;background-color:#d9e1f7;padding:0 12px 0 9px;height:20px;line-height:20px;margin:0 0 11px 0}
      #tp a{color:#000}
      #ft{line-height:20px;background:#E6E6E6;text-align:center;color:#77C;font-size:12px;width:100%}
      #ft span{color:#666}
      .main{clear:both;margin:20px 30px 20px 40px;width:auto;height:400px;}
      h1{font-size:16px;margin-bottom:12px}
      h2{font-size:16px;color:#000;}
      th{font-weight:normal;}
      #mini_calc{margin-top:8px;}
</style>
<script type="text/javascript" compress>
      function h(obj,url){
         try{
            obj.style.behavior='url(#default#homepage)';
            obj.setHomePage(url)
         }catch(e){}
      }
</script>
</head>
<body>
      <div class="main">
         <table border="0" cellpadding="0" cellspacing="0"><tr><td class="f">
         <h2>在线计算器</h2>
         <div id="mini_calc">
         
         <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)

            document.calc.sin.style.color=(carry!=10)?"#aca899":"#DE0193";
            document.calc.cos.style.color=(carry!=10)?"#aca899":"#DE0193";
            document.calc.tan.style.color=(carry!=10)?"#aca899":"#DE0193";
            document.calc.bt.style.color=(carry!=10)?"#aca899":"#DE0193";
            document.calc.pi.style.color=(carry!=10)?"#aca899":"#0c2b87";
            document.calc.e.style.color=(carry!=10)?"#aca899":"#0c2b87";
            document.calc.kp.style.color=(carry!=10)?"#aca899":"#0c2b87";
            document.calc.k2.style.color=(carry<=2)?"#aca899":"#0c2b87";
            document.calc.k3.style.color=(carry<=2)?"#aca899":"#0c2b87";
            document.calc.k4.style.color=(carry<=2)?"#aca899":"#0c2b87";
            document.calc.k5.style.color=(carry<=2)?"#aca899":"#0c2b87";
            document.calc.k6.style.color=(carry<=2)?"#aca899":"#0c2b87";
            document.calc.k7.style.color=(carry<=2)?"#aca899":"#0c2b87";
            document.calc.k8.style.color=(carry<=8)?"#aca899":"#0c2b87";
            document.calc.k9.style.color=(carry<=8)?"#aca899":"#0c2b87";
            document.calc.ka.style.color=(carry<=10)?"#aca899":"#0c2b87";
            document.calc.kb.style.color=(carry<=10)?"#aca899":"#0c2b87";
            document.calc.kc.style.color=(carry<=10)?"#aca899":"#0c2b87";
            document.calc.kd.style.color=(carry<=10)?"#aca899":"#0c2b87";
            document.calc.ke.style.color=(carry<=10)?"#aca899":"#0c2b87";
            document.calc.kf.style.color=(carry<=10)?"#aca899":"#0c2b87";

            document.calc.sin.style.cursor=(carry!=10)?"default":"pointer";
            document.calc.cos.style.cursor=(carry!=10)?"default":"pointer";
            document.calc.tan.style.cursor=(carry!=10)?"default":"pointer";
            document.calc.bt.style.cursor=(carry!=10)?"default":"pointer";
            document.calc.pi.style.cursor=(carry!=10)?"default":"pointer";
            document.calc.e.style.cursor=(carry!=10)?"default":"pointer";
            document.calc.kp.style.cursor=(carry!=10)?"default":"pointer";
            document.calc.k2.style.cursor=(carry<=2)?"default":"pointer";
            document.calc.k3.style.cursor=(carry<=2)?"default":"pointer";
            document.calc.k4.style.cursor=(carry<=2)?"default":"pointer";
            document.calc.k5.style.cursor=(carry<=2)?"default":"pointer";
            document.calc.k6.style.cursor=(carry<=2)?"default":"pointer";
            document.calc.k7.style.cursor=(carry<=2)?"default":"pointer";
            document.calc.k8.style.cursor=(carry<=8)?"default":"pointer";
            document.calc.k9.style.cursor=(carry<=8)?"default":"pointer";
            document.calc.ka.style.cursor=(carry<=10)?"default":"pointer";
            document.calc.kb.style.cursor=(carry<=10)?"default":"pointer";
            document.calc.kc.style.cursor=(carry<=10)?"default":"pointer";
            document.calc.kd.style.cursor=(carry<=10)?"default":"pointer";
            document.calc.ke.style.cursor=(carry<=10)?"default":"pointer";
            document.calc.kf.style.cursor=(carry<=10)?"default":"pointer";
         }
         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))
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