正则表达式实例详解

<html>

<head>

<title>php正则表达式实例</title>

<script language="javascript" type="text/javascript">

function Button1_onclick(){

    if(!test_hanzi(document.form1.Text1.value)){

        alert("姓名只能是汉字");

        return false;

        }else{

        alert("验证通过");
    }

}

//验证电子邮件

function test_email(strEmail){ 

    var myReg = /^[_a-z0-9]+@([_a-z0-9]+.)+[a-z0-9]{2,3}$/;

    if(myReg.test(strEmail)) return true;

    return false;    

} 

//只能输入数字

function test_shuzi(strshuzi){ 

    var myReg =/^[0-9]*$/;

    if(myReg.test(strshuzi)) return true;

    return false;
} 


//只能输入汉字

function test_hanzi(strhanzi){ 

    var myReg =/^[u4e00-u9fa5]{0,}$/;

    if(myReg.test(strhanzi)) return true;

    return false;

}

</script>

</head>

<body>

<form name="form1">姓名:

    <input id="Text1" name="Text1" type="text" />

    <input name="按钮" type="button" id="Button1" onclick="return Button1_onclick()" value="button" language="javascript" />

</form>

</body>

</html>
原文地址:https://www.cnblogs.com/lc2817/p/11350148.html