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笔记

javascript实现科学计算器

已有 488 次阅读2016-08-08 08:37 |系统分类: JavaScript |

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>科学计算器</title>
<style>
body { margin: 0; padding: 0 ; font-size:12px; font-family:"\5FAE\8F6F\96C5\9ED1"}
.container{width: 680px;margin: 0 auto; background:#fff}
input{width:60px; height:35px; cursor:pointer;font-family:"\5FAE\8F6F\96C5\9ED1" }
input[type="button"]{border-radius: 1px;}
input:focus{ outline:none}
input[disabled]{color: #AEAEAE;cursor: default;}
input[type="button"]:hover{ border:#aaa solid 1px ;}
input[disabled]:hover{ border:#ccc solid 1px }
.cw{ width:680px;border: #CCC solid 1px;}
.cw-input{width: 630px;padding: 10px;height: 20px;font-weight: 800; text-align:right; font-size:16px; cursor:default;margin-top: 10px;}
.cw-show{ height:30px; border:#DBD9D9 solid 1px; cursor:default }
.cw-num{ background:#f0f0f0; border:#ccc solid 1px ;font-weight: 800;color: #666;}
.cw-select{width: inherit;height: inherit;}
.cw-fn,.cw-tpl,.cw-x{ color:#444; background:#D6D6D6; border:#c6c6c6 solid 1px; ;background-image:-webkit-linear-gradient(top,#D6D6D6,#D0D0D0);background-image: -moz-linear-gradient(top,#d6d6d6,#d0d0d0);background-image: -ms-linear-gradient(top,#d6d6d6,#d0d0d0);background-image: linear-gradient(top,#d6d6d6,#d0d0d0);}
.cw-x{color: #AF5757;font-weight: 800;}
.cw-enter{-moz-box-shadow: 0 1px 1px rgba(0,0,0,0.1);-webkit-box-shadow: 0 1px 1px rgba(0, 0, 0, 0.1);box-shadow: 0 1px 1px rgba(0, 0, 0, 0.1);background-image: -moz-linear-gradient(top,#4d90fe,#357ae8);background-image: -ms-linear-gradient(top,#4d90fe,#357ae8);filter: progid:DXImageTransform.Microsoft.gradient(startColorStr=#4d90fe,EndColorStr=#357ae8);background-image: -o-linear-gradient(top,#4d90fe,#357ae8);background-image: -webkit-gradient(linear,left top,left bottom,from(#4D90FE),to(#357AE8));background-image: -webkit-linear-gradient(top,#4D90FE,#357AE8);background-color: #4D90FE;background-image: linear-gradient(top,#4d90fe,#357ae8);border: 1px solid #2F5BB7;color: #FEFEFE; font-weight:bold;font-size: 20px;}
input[type="button"].cw-enter:hover{border:#264FA4 solid 1px ;}
</style>
<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>

<!--written by GoldHuman li hai--><!--2000.8-->
</head>

<body>
<form name="calc" class="container">
    <table class="cw" id="kxjsq">
      <tbody>
        <tr>
          <td align="center" ><input class="cw-input" readonly size="40" value="0" name="display"></td>
        </tr>
        <tr>
          <td><table style="width:100%" >
              <tbody>
                <tr>
                  <td ><input class="cw-select" onclick="inputChangCarry(16)" type="radio" name="carry">
                    十六进制
                    <input class="cw-select" onclick="inputChangCarry(10)" type="radio" checked="" name="carry">
                    十进制
                    <input class="cw-select" onclick="inputChangCarry(8)" type="radio" name="carry">
                    八进制
                    <input class="cw-select" onclick="inputChangCarry(2)" type="radio" name="carry">
                    二进制 </td>
                  <td></td>
                  <td><input class="cw-select" onclick="inputChangAngle(&#39;d&#39;)" type="radio" checked="" value="d" name="angle">
                    角度制
                    <input class="cw-select" onclick="inputChangAngle(&#39;r&#39;)" type="radio" value="r" name="angle">
                    弧度制 </td>
                </tr>
              </tbody>
            </table></td>
        </tr>
        <tr>
          <td><table style="width:100%" >
              <tbody>
                <tr>
                  <td ><input class="cw-select" onclick="inputshift()" type="checkbox" name="shiftf">
                    上档功能
                    <input class="cw-select" onclick="inputshift()" type="checkbox" name="hypf">
                    双曲函数 </td>
                  <td><input class="cw-show" readonly size="3" name="bracket">
                    <input class="cw-show" readonly size="3" name="memory">
                    <input class="cw-show" readonly size="3" name="operator"></td>
                  <td align="right"><input  class="cw-tpl" onclick="backspace()" type="button" value=" 退格 ">
                    <input  class="cw-tpl" onclick="document.calc.display.value = 0 " type="button" value=" 清屏 ">
                    <input  class="cw-tpl" onclick="clearall()" type="button" value=" 全清"></td>
                </tr>
              </tbody>
          </table></td>
        </tr>
        <tr>
          <td>
            
            <table >
              <tbody>
                <tr>
                  <td><table>
                      <tbody>
                        <tr align="middle">
                          <td><input class="cw-fn"  onclick="inputfunction(&#39;pi&#39;,&#39;pi&#39;)" type="button" value=" PI " name="pi"></td>
                          <td><input class="cw-fn" onclick="inputfunction(&#39;e&#39;,&#39;e&#39;)" type="button" value=" E  " name="e"></td>
                          <td><input class="cw-fn"  onclick="inputfunction(&#39;dms&#39;,&#39;deg&#39;)" type="button" value="d.ms" name="bt"></td>
                        </tr>
                        <tr align="middle">
                          <td><input class="cw-fn"  onclick="addbracket()" type="button" value=" (  "></td>
                          <td><input class="cw-fn"  onclick="disbracket()" type="button" value=" )  "></td>
                          <td><input class="cw-fn"  onclick="inputfunction(&#39;ln&#39;,&#39;exp&#39;)" type="button" value=" ln " name="ln"></td>
                        </tr>
                        <tr align="middle">
                          <td><input class="cw-fn"  onclick="inputtrig(&#39;sin&#39;,&#39;arcsin&#39;,&#39;hypsin&#39;,&#39;ahypsin&#39;)" type="button" value="sin " name="sin"></td>
                          <td><input class="cw-fn" onclick="operation(&#39;^&#39;,7)" type="button" value="x^y "></td>
                          <td><input class="cw-fn"  onclick="inputfunction(&#39;log&#39;,&#39;expdec&#39;)" type="button" value="log " name="log"></td>
                        </tr>
                        <tr align="middle">
                          <td><input class="cw-fn" onclick="inputtrig(&#39;cos&#39;,&#39;arccos&#39;,&#39;hypcos&#39;,&#39;ahypcos&#39;)" type="button" value="cos " name="cos"></td>
                          <td><input class="cw-fn"  onclick="inputfunction(&#39;cube&#39;,&#39;cubt&#39;)" type="button" value="x^3 " name="cube"></td>
                          <td><input class="cw-fn" onclick="inputfunction(&#39;!&#39;,&#39;!&#39;)" type="button" value=" n! "></td>
                        </tr>
                        <tr align="middle">
                          <td><input class="cw-fn" onclick="inputtrig(&#39;tan&#39;,&#39;arctan&#39;,&#39;hyptan&#39;,&#39;ahyptan&#39;)" type="button" value="tan " name="tan"></td>
                          <td><input class="cw-fn"  onclick="inputfunction(&#39;sqr&#39;,&#39;sqrt&#39;)" type="button" value="x^2 " name="sqr"></td>
                          <td><input class="cw-fn"  onclick="inputfunction(&#39;recip&#39;,&#39;recip&#39;)" type="button" value="1/x "></td>
                        </tr>
                      </tbody>
                    </table></td>
                  <td width="30"></td>
                  <td><table>
                      <tbody>
                        <tr>
                          <td><input class="cw-tpl" onclick="putmemory()" type="button" value=" 储存 "></td>
                        </tr>
                        <tr>
                          <td><input class="cw-tpl" onclick="getmemory()" type="button" value=" 取存 "></td>
                        </tr>
                        <tr>
                          <td><input class="cw-tpl" onclick="addmemory()" type="button" value=" 累存 "></td>
                        </tr>
                        <tr>
                          <td><input class="cw-tpl"  onclick="multimemory()" type="button" value=" 积存 "></td>
                        </tr>
                        <tr>
                          <td ><input class="cw-tpl"  onclick="clearmemory()" type="button" value=" 清存 "></td>
                        </tr>
                      </tbody>
                    </table></td>
                  <td width="30"></td>
                  <td><table>
                      <tbody>
                        <tr align="middle">
                          <td><input class="cw-num"  onclick="inputkey(&#39;7&#39;)" type="button" value=" 7 " name="k7"></td>
                          <td><input class="cw-num"  onclick="inputkey(&#39;8&#39;)" type="button" value=" 8 " name="k8"></td>
                          <td><input class="cw-num" onclick="inputkey(&#39;9&#39;)" type="button" value=" 9 " name="k9"></td>
                          <td><input class="cw-x" onclick="operation(&#39;/&#39;,6)" type="button" value=" / "></td>
                          <td><input class="cw-tpl"  onclick="operation(&#39;%&#39;,6)" type="button" value="取余"></td>
                          <td><input class="cw-tpl"  onclick="operation(&#39;&amp;&#39;,3)" type="button" value=" 与 "></td>
                        </tr>
                        <tr align="middle">
                          <td><input class="cw-num"  onclick="inputkey(&#39;4&#39;)" type="button" value=" 4 " name="k4"></td>
                          <td><input class="cw-num"  onclick="inputkey(&#39;5&#39;)" type="button" value=" 5 " name="k5"></td>
                          <td><input class="cw-num"  onclick="inputkey(&#39;6&#39;)" type="button" value=" 6 " name="k6"></td>
                          <td><input class="cw-x" onclick="operation(&#39;*&#39;,6)" type="button" value=" * "></td>
                          <td><input class="cw-tpl"  onclick="inputfunction(&#39;floor&#39;,&#39;deci&#39;)" type="button" value="取整" name="floor"></td>
                          <td><input class="cw-tpl"  onclick="operation(&#39;|&#39;,1)" type="button" value=" 或 "></td>
                        </tr>
                        <tr align="middle">
                          <td><input class="cw-num"  onclick="inputkey(&#39;1&#39;)" type="button" value=" 1 "></td>
                          <td><input class="cw-num"  onclick="inputkey(&#39;2&#39;)" type="button" value=" 2 " name="k2"></td>
                          <td><input class="cw-num"  onclick="inputkey(&#39;3&#39;)" type="button" value=" 3 " name="k3"></td>
                          <td><input class="cw-x" onclick="operation(&#39;-&#39;,5)" type="button" value=" - "></td>
                          <td><input class="cw-tpl"  onclick="operation(&#39;&lt;&#39;,4)" type="button" value="左移"></td>
                          <td><input class="cw-tpl"  onclick="inputfunction(&#39;~&#39;,&#39;~&#39;)" type="button" value=" 非 "></td>
                        </tr>
                        <tr align="middle">
                          <td><input class="cw-num" onclick="inputkey(&#39;0&#39;)" type="button" value=" 0 "></td>
                          <td><input class="cw-num"  onclick="changeSign()" type="button" value="+/-"></td>
                          <td><input class="cw-num" onclick="inputkey(&#39;.&#39;)" type="button" value=" . " name="kp"></td>
                          <td><input class="cw-x" onclick="operation(&#39;+&#39;,5)" type="button" value=" + "></td>
                          <td><input class="cw-fn cw-enter" onclick="result()" type="button" value=" = "></td>
                          <td><input class="cw-tpl"  onclick="operation(&#39;x&#39;,2)" type="button" value="异或"></td>
                        </tr>
                        <tr align="middle">
                          <td><input class="cw-x" disabled="" onclick="inputkey(&#39;a&#39;)" type="button" value=" A " name="ka"></td>
                          <td><input class="cw-x" disabled="" onclick="inputkey(&#39;b&#39;)" type="button" value=" B " name="kb"></td>
                          <td><input class="cw-x" disabled="" onclick="inputkey(&#39;c&#39;)" type="button" value=" C " name="kc"></td>
                          <td><input class="cw-x" disabled="" onclick="inputkey(&#39;d&#39;)" type="button" value=" D " name="kd"></td>
                          <td><input class="cw-x" disabled="" onclick="inputkey(&#39;e&#39;)" type="button" value=" E " name="ke"></td>
                          <td><input class="cw-x" disabled="" onclick="inputkey(&#39;f&#39;)" type="button" value=" F " name="kf"></td>
                        </tr>
                      </tbody>
                    </table></td>
                </tr>
              </tbody>
            </table></td>
        </tr>
      </tbody>
    </table>
    </form>
</body>
</html>


标签: javascript实现计算器 举报

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笔记作者:Demon

笔记链接:

原创声明:此笔记被 Demon 标注为原创笔记,未经作者同意转载必须保留此段声明,且在文章页面明显位置给出原文链接,否则保留追究法律责任的权利。

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