用Javascript中的形式表示数字的Switch语句
请有人能帮我用一个代码做一个switch语句和一个表单来检查吗 比如：用Javascript中的形式表示数字的Switch语句,javascript,Javascript,请有人能帮我用一个代码做一个switch语句和一个表单来检查吗 比如： <script language="JavaScript"> <!-- function verifyPerf(form){ var myEntry = form.number(); //check the edit box number, didn't know how?! var firstPart = "1. You need to do thing 1"; var endPart =
<script language="JavaScript">
<!--
function verifyPerf(form){
var myEntry = form.number(); //check the edit box number, didn't know how?!
var firstPart = "1. You need to do thing 1";
var endPart = "2. You need to to do thing 2";
switch(myEntry){
case "<= 3000" :
alert(firstPart);
break;
case ">3000 and <9000" :
alert(endPart);
break;
//would like to add 3 more cases
default :
alert('You have entered an invalid performance number');
}
}
-->
</script>
</head>
<body>
<form name="myForm">
<b>Please enter your performance number:</b><br>
<input type=number value="" name="perfNumber">
<input type=BUTTON value="Verify" name="myButton" onClick='verifyPerf(this.form)'>
</form>
</body>
</html>
请输入您的演出编号：
您的switch语句正在查找字符串'3000，这不是
switchif（）{}else if（）{}/*etc*/else{}