正则表达式:
验证email格式:<input type=text onblur=isEmail(this.value)></td>
function isEmail(strEmail) {
if (strEmail.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1)
return true;
else
alert("请输入正确的电子邮件!");");
}
验证email格式:<input type=text onblur=isEmail(this.value)></td>
function isEmail(strEmail) {
if (strEmail.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1)
return true;
else
alert("请输入正确的电子邮件!");");
}
{
//如果为空,则通过校验
if(str == "")
return true; if (str.charAt(0) == "." || str.charAt(0) == "@" || str.indexOf('@', 0) == -1
|| str.indexOf('.', 0) == -1 || str.lastIndexOf("@") == str.length-1 || str.lastIndexOf(".") == str.length-1)
return false;
else
return true;
}//~~~
function isEmail(str)
{
var reg = /^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;
return reg.test(str);
}
alert(isEmail("[email protected]"))
alert(isEmail("wanghr@hotmailcom"))
</script>