大家好，请告诉我为什么这个代码没有任何回应

hello every one please tell me why this code is not give any response

本文关键字：代码 任何 回应 告诉我 为什么 大家      更新时间：2023-09-26

检查代码…

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<script type="text/javascript">
function operation(thevalue)
{
    var result;
    var one=document.forms["myform1"]["one"];
    var two=document.forms["myform1"]["two"];
    document.write(one);
    var x=document.getElementById(thevalue).value;
    if(x == "add")
    {
        result=one+two;
        alert ("Answer is : "+result);
    }
}
</script>
</head>
<body>
<form name="myform1">
Enter 1st no :<input type="text" name="one"  /><br/>
Enter 2nd no :<input type="text" name="two"  /><br/>
<input type="radio" id="add" name="operation" value="add" onclick="operation(this.value)" />Add
<input type="radio" id="sub" name="operation" value="sub" onclick="operation(this.value)" />Sub
<input type="radio" id="mul" name="operation" value="mul" onclick="operation(this.value)" />Mul
<input type="radio" id="div" name="operation" value="div" onclick="operation(this.value)" />Div
</form>
</body>
</html>

您的函数和输入名称具有相同的名称您需要从输入中提取get值(并将其解析为数字)

http://jsfiddle.net/VfnYB/1/

<form name="myform1">
Enter 1st no :<input type="text" name="one"  /><br/>
Enter 2nd no :<input type="text" name="two"  /><br/>
<input type="radio" id="add" name="operation" value="add" onclick="op(this.value)" />Add
<input type="radio" id="sub" name="operation" value="sub" onclick="op(this.value)" />Sub
<input type="radio" id="mul" name="operation" value="mul" onclick="op(this.value)" />Mul
<input type="radio" id="div" name="operation" value="div" onclick="op(this.value)" />Div
</form>

window.op=function(val)
{
    var result;
    var one=parseInt(document.forms["myform1"]["one"].value);
    var two=parseInt(document.forms["myform1"]["two"].value);
    if(val == "add")
    {
        result=one+two;
        alert ("Answer is : "+result);
    }
}

将操作更改为引起冲突的另一个名称

1)更改operation为另一个名称，因为您已将您的单选按钮命名为"operation" 

<input type="radio" id="add" name="operation" value="add" onclick="operation(this.value)" />Add
在你的代码中。value部分缺失，否则您将只获得元素而不是其值。 
 var one=document.forms["myform1"]["one"].value;
 var two=document.forms["myform1"]["two"].value;
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