这个代码为啥不灵呢，好奇怪，是哪错了，望高手指导，谢谢！

源自：6-11 编程练习

<!DOCTYPE html>

<html>

<head>

function count(){

var x=document.getElementById("txt1").value;

var y=document.getElementById("txt2").value;

var sel=document.getElementById("select").value;

var fur=0;

switch(sel)

{case"+";

fur=parseInt(x)+parseInt(y);

break;

case"-";

fur=parseInt(x)-parseInt(y);

break;

case="*";

fur=parseInt(x)*parseInt(y);

break;

case="/";

fur=parseInt(x)/parseInt(y);

break;

}

document.getElementById("fruit").value =fur;

}

</script>

</head>

<body>

</select>

</body>

</html>

提问者：宝宝的胖嘟666 2020-07-16 16:38