Question

请帮我处理以下代码，因为我不知道我错过了什么。单击按钮计算应触发功能computeAll()。相反，脚本不会对我的行为做出反应：

html代码：

    <!DOCTYPE html>

<html lang="en">
    <head>
        <meta charset="utf-8" />
        <title></title>
        <script src="complex.js"></script>

    </head>
    <body>
        <form name="calcul" method ="post">
        <table>
           <tr><th></th><th>Real part</th><th>Imaginary part(i)</th></tr>
          <tr><td>Enter the first complex number</td><td><input type="text" name="real1"/></td>
            <td><input type="text" name="imaginary1"/></td></tr>
            <tr><td>Enter the secound complex number</td><td><input type="text" name="real2"/></td>
            <td><input type="text" name="imaginary2"/></td></tr>

        <tr><td>Enter your choice</td><td colspan="2"><div><p>Addition<input type="radio" value="add" checked name="option">
        </p><p>Substraction<input type="radio" value="subs" name="option"></p></div>
        </td></tr>

        <tr><td >The answer is:</td><td><input type="text" name="displayReal"/></td><td><input type="text" name="displayImaginary"/></td></tr>
        <tr><td  colspan="3"></td></tr>
            <tr>
            <td><input type="button" value="Compute" onclick="computeAll()"></td>
            <td><input type="button" value="Clear" onclick="clearAll()"></td>
        </tr>
        </table>
        </form>

    </body>
</html>

和java脚本代码

<script type="text/javascript">
    function computeAll() {

        var val1, val2, img1, img2, resultR, resultI
        val1 = parseInt(document.calcul.real1.value);
        val2 = parseInt(document.calcul.real2.value);
        img1 = parseInt(document.calcul.imaginary1.value);
        img2 = parseInt(document.calcul.imaginary2.value);
        if (calcul.option[0].checked){
            resultR = val1 + val2;
        resultI = img1 + img2;
        document.calcul.displayReal.value = resultR;
        document.calcul.displayImaginary.value = resultI;

        }

        if (calcul.option[1].checked){
             resultR = val1 - val2;
        resultI = img1 - img2;
        document.calcul.displayReal.value = resultR;
        document.calcul.displayImaginary.value = resultI;
        }
    }
</script>

Answer 1

<script>标记位于何处？在<head>中引用的complex.js文件中？您不应该在JavaScript文件中需要<script>标记，这可能会导致问题。检查浏览器的开发人员工具是否存在任何JS错误。

Answer 2

当您引用为外部文件时（例如<script type="text/javascript">），您无需将javascript代码放在</script>和<script src="complex.js"></script>中。删除它，然后重试。

按钮不会触发事件

2 个答案: