javascript验证邮箱格式代码

用一个正侧表达式在javascript中验证就是咯!


~~~~~~~~~~~~~~~~~~~~~~~完毕！

最简单的就一句：

if(!/^/w+([-+.]/w+)*@/w+([-.]/w+)*/./w+([-.]/w+)*$/.test('email'))
{
alert('email不正确');
}

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js:

function isEmail(email)
{
invalidChars = " /;,:{}[]|*%$#!()`<>?";
if (email == "")
{
return false;
}
for (i=0; i< invalidChars.length; i++)
{
badChar = invalidChars.charAt(i)
if (email.indexOf(badChar,0) > -1) {
return false;
}
}
atPos = email.indexOf("@",1)
if (atPos == -1) {   return false; }
if (email.indexOf("@", atPos+1) != -1) {   return false; }
periodPos = email.indexOf(".",atPos)
if(periodPos == -1) {
return false; // and at least one "." after the "@"
}
if ( atPos +2 > periodPos) {
return false; // and at least one character between "@" and "."
}
if ( periodPos +3 > email.length) {   return false; }
return true;
}

aspx: 调用: