求解这个为什么不行呢，谢谢啦QAQ

<!DOCTYPE html>
<html>
<head>
<title> 事件</title>
<script type="text/javascript">
   function count(){
   var t1=document.getElementById("txt1"）.value;
   var t2=document.getElementById("txt2"）.value;
   var s=document.getElementById("select").value;
   var out="";
switch (s)
{
case "+":
out=parseInt(t1)+parseInt(t2);
break;
case "-":
out=parseInt(t1)-parseInt(t2);
break;
case "*":
out=parseInt(t1)*parseInt(t2);
break;
default:
out=parseInt(t1)/parseInt(t2);
}
document.getElementById("fruit"）.value=out;
   }
</script>
</head>
<body>
   <input type='text' id='txt1' />
   <select id='select'>
       <option value='+'>+</option>
       <option value="-">-</option>
       <option value="*">*</option>
       <option value="/">/</option>
   </select>
   <input type='text' id='txt2' />
   <input type='button' value=' = ' onclick="count()"/> 
   <input type='text' id='fruit' />
</body>
</html>

云浮第一补刀手擐执

浏览 1126回答 1

1回答

super_mb

你代码里好几个地方的右括号都是中文的，改成英文的就好了。这几句： var t1=document.getElementById("txt1"）.value; var t2=document.getElementById("txt2"）.value; document.getElementById("fruit"）.value=out;

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