以前的老帖子了:
var expression=yourEMailAddress
var r1 = new RegExp("(@.*@)|(\\.\\.)|(@\\.)|(^\\.)");
var r2 = new RegExp("^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$");
if(!r1.test(expression) && !r2.test(expression)){
alert("您输入的email地址不合法");
}
var expression=yourEMailAddress
var r1 = new RegExp("(@.*@)|(\\.\\.)|(@\\.)|(^\\.)");
var r2 = new RegExp("^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$");
if(!r1.test(expression) && !r2.test(expression)){
alert("您输入的email地址不合法");
}
str.indexOf("@") > -1