<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script>
window.onload=function(){
var reg=new RegExp("^[0-9]*$");
var obj=document.getElementById("name");
obj.onBlur=function(){
if(!reg.test(obj.value)){
alert("请输入数字!");
}
}
}
</script>
</head>
<body>
<input type="text" id="name" />
</body>
</html>
if(!reg.test(obj.innerText)){
//todo
}
window.onload = (function () {
var reg = new RegExp('^[0-9]*$');
var obj = document.getElementById('name');
obj.onblur = function () {
if ( !reg.test(this.value) ) {
alert('请输入数字!');
}
}
})();
给window.onload
的函数加上立即执行就行了。另外,onblur
小写。
PS:希望题主以后提问题时,注意代码规范。:)
obj.onBlur
改为obj.onblur