一些常用的Javascript表單驗證代碼

代碼如下

複製代碼

//驗證Email function checkEmail(mail) {     if (mail.length > 0 && mail.length < 101) {         var regex = /^[_.0-9a-zA-Z+-]+@([0-9a-zA-Z]+[0-9a-zA-Z-]*.)+[a-zA-Z]{2,4}$/;         if (regex.exec(mail)) {             return true;         }     }     return false; } //驗證郵遞區號 function checkZip(zip) {     var regex = /^[0-9]{6}$/;     if (regex.exec(zip)) {         return true;     }     return false; } //驗證身份證 function checkIdCard(idcard) {     var regex = /^[0-9xX]{15,18}$/;     if (regex.exec(idcard)) {         return true;     }     return false; } //驗證固話 function checkTel(tel) {     var regex = /^[0-9]{3,4}-[0-9]{7,8}$/;     if (regex.exec(tel)) {         return true;     }     return false; } //驗證手機 function checkMobile(mobile) {     var regex = /^[0-9]{11}$/;     if (regex.exec(mobile)) {         return true;     }     return false; } //驗證QQ function checkQQ(qq) {     qq = $.trim(qq);     if (qq.length > 0 && qq.length < 101) {         var regex = /^[0-9]{1,12}$/;         if (regex.exec(qq)) {             return true;         } else {             return checkEmail(qq);         }     }     return false; } //驗證名稱中文，英文或數字 function checkUname(name) {     var regex = /^[a-zA-Z0-9u4e00-u9fa5]{2,10}$/;     if (regex.exec(name)) {         return true;     }     return false; } function checkUname(name,start,end) {     var regex = new RegExp("^[a-zA-Z0-9\u4e00-\u9fa5]{"+start+","+end+"}$");     if (regex.exec(name)) {         return true;     }     return false; } //驗證網址 function checkSiteUrl(url) {     var regex = /^http://([a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?.)+[a-zA-Z]{2,6}(:[0-9]{1,5})?$/;     if (regex.exec(url)) {         if (url.length < 201) {             var istrue = false;             $.ajax({                 type: "post",                 url: "register.aspx",                 dataType: "html",                 async: false,                 data: "url=" + escape(url) + "&t=checkUrl",                 cache: false,                 success: function(data) {                     if (data == "can") {                         istrue = true;                     }                 }             });             if (istrue) {                 return true;             }         }     }     return false; }