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<!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>正则表达式验证邮箱</title> <script> window.onload=function() { var oTxt=document.getElementById('txt'); var oBtn=document.getElementById('btn'); oBtn.onclick=function() { var reg=/^\w+@[a-z0-9]+\.[a-z]+$/i; if(reg.test(oTxt.value)) { alert('对'); } else { alert('错'); } }; }; </script> </head> <body> <input type="txt" id="txt" /> <input type="button" value="验证" id="btn" /> </body> </html>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>正则表达式验证邮箱</title> <script> window.onload=function() { var oTxt=document.getElementById('txt'); var oBtn=document.getElementById('btn'); oBtn.onclick=function() { var reg=/^\w+@[a-z0-9]+\.[a-z]+$/i; if(reg.test(oTxt.value)) { alert('对'); } else { alert('错'); } }; }; </script> </head> <body> <input type="txt" id="txt" /> <input type="button" value="验证" id="btn" /> </body> </html>