js验证邮箱正则表达式，邮箱验证方法

// 验证邮箱函数,正确返回 true，错误返回false
function validateEmail(email) {       //验证邮箱正则
   var re = /^(([^()[\]\\.,;:\[email protected]\"]+(\.[^()[\]\\.,;:\[email protected]\"]+)*)|(\".+\"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
   return re.test(email);
}
document.write(validateEmail(‘[email protected]‘));//返回true
document.write("<br>");
document.write(validateEmail(‘123‘));//返回false