JavaScript之验证提醒【升级版,高大上】

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</pre><div><pre name="code" class="html"><html><head><title>Js 正则表达式之邮箱验证</title><script>function checkEmail(){//cedar_c@163.com.cnvar emailObj = document.forms[0].email;var email = emailObj.value;var div = document.getElementById("aa");var reg = /^\s*$/;if(reg.test(email)){div.innerHTML="<font color=red>!邮箱不能为空</font>";return false;}var reg = /^\w+@[\w-]+\.[a-zA-Z]+$/;if(!reg.test(email)){div.innerHTML="<font color=red>!邮箱格式不正确</font>";return false;}return true;}</script></head><body><form onSubmit="return checkEmail()">邮箱:<input name="email" type="text"/><div style="display:inline" id="aa"></div><br/><input type="submit" value="确定" /></form></body></html>


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