各位大大，我写的计算器为什么运行不出来

javascripthtmlcss

解决方案 »

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<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>计算器</title>
    <style type="text/css">
        .div{
            width:300px;
            height:300px;
            background-color:gray;
            margin:0 auto;
            margin-top:230px;
            position:relative;
            }
        .buttonLeft{
        text-align:left;
        width:22%;
        position:absolute;
        left:5px;
        }
        .buttonCenter{
        text-align:center;
        width:22%;

        }
        .buttonRight{
        text-align:right;
        width:22%;

        }

    </style>
    <script type="text/javascript">
    function display(obj)
    {
    document.getElementById("text").value+=obj.value;
    }
    function results(){
    var tmp=document.getElementById("text").value;
    if(tmp.indexOf("=")<0)
    document.getElementById("text").value+="="+eval(tmp);
    }
   function clearz()
{
    document.getElementById("text").value="";
}
    </script>
</head>
<body>
    <div align="center" id="div" class="div">
        <input type="text" id="text">
        <hr>
        <button class="buttonLeft" id="7" onclick="display(this)" value="7">7</button>
        <button class="buttonCenter" id="8" onclick="display(this)" value="8">8</button>
        <button class="buttonRight" id="9" onclick="display(this)" value="9">9</button><br>
        <button class="buttonLeft" id="4" onclick="display(this)" value="4">4</button>
        <button class="buttonCenter" id="5" onclick="display(this)" value="5">5</button>
        <button class="buttonRight" id="6" onclick="display(this)" value="6">6</button><br>
        <button class="buttonLeft" id="1" onclick="display(this)" value="1">1</button>
        <button class="buttonCenter" id="2" onclick="display(this)" value="2">2</button>
        <button class="buttonRight" id="3" onclick="display(this)" value="3">3</button><br>
        <button class="buttonLeft" id="0" onclick="display(this)" value="0">0</button>
        <button class="buttonCenter" id="final" onclick="results()">=</button>
        <button class="buttonRight" id="point" onclick="display(this)" value=".">.</button><br>
        <button class="buttonLeft" id="plus" onclick="display(this)" value="+">+</button>
        <button class="buttonCenter" id="reduce" onclick="display(this)" value="-">-</button>
        <button class="buttonRight" id="multi" onclick="display(this)" value="*">*</button><br>
        <button class="buttonLeft" id="remove" onclick="display(this)" value="/">/</button>
        <button class="buttonRight" id="ac" onclick="clearz()">Ac</button>
    </div>
</body>
</html>
不是document.getElementsById  没有s
phpstorm。前提是你的电脑硬盘不是那么破。