js限制文本框为整数和货币的函数代码

时间:2020-05-12 人气:0

限制为整数

<html>
<head>
<script language="javascript" type="text/javascript">
 var G=document.getElementById;
 function checkNumber(){
  var reg = /^(?:0|[1-9][0-9]?|100)$/;
   
  var strNumber = G("txtNumber").value;
  alert(reg.test(strNumber))
 }
</script>
</head>
<body >
<input type="text" value="" id="txtNumber" title="Please enter a number witch between 0 and 100 ..">
<button onclick="checkNumber();">CheckNumber</button>
</body>
</html>

限制为货币

<script language="JavaScript" type="text/javascript">
<!--
function checkMoney(obj){
var tempValue=obj.value.replace(/(^\s+)|(\s+$)/g,'');
if(!tempValue){return;}
if(/^-?\d+(\.\d+)?$/.test(tempValue)){
obj.value=parseFloat(tempValue).toFixed(2);
}else{
alert('请输入合法的货币值！');
obj.select();
return;
}
}
//-->
</script>
onblur="checkMoney(this)"

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