验证网址的正则怎么写?

Question

我想js判断别人输入的网址是否符合标准.正则怎么写啊. 谁帮我把js贴出来下.

Answer 1

var i = "[email protected]";
var reg = /^[.\w]+@[a-z\-0-9]+\.[\w.\-]+$/;
alert(reg.test(i));

Answer 2

var reg = /^[.\w]+@[a-z\-0-9]+\.[\w.\-]+$/i;

Answer 3

不行哦.
alert(reg.test("www.baidu.com"));  false

Answer 4

var i = "www.google.com/a/";
var reg = /^(https?:\/\/)?\w+(\.\w+)*(:\d+)?(\/.*)?$/;
alert(reg.test(i));

Answer 5

 var re=/^(https?:\/\/)?\w+(\.\w+)*(:\d+)?(\/.*)?$/;
       alert(re.test("123"));
true不行哦.

Answer 6

符号写错了~~~
var reg = /^(https?:\/\/)?\w+(\.\w+)+(:\d+)?(\/.*)?$/;

Answer 7

严谨点
var i = "123";
var reg = /^http(s)?:\/\/([\w\-]+\.)+[\w\-]+(\/[\w- .\/?%&=]*)?/;
alert(reg.test(i));

Answer 8

差不多拉.呵呵. 如果别人没加http:// 也算通过,怎么判断下呢?谢谢拉.麻烦帮我改改拉。 嘿嘿

Answer 9

/^(http(s)?)?:\/\/([\w\-]+\.)+[\w\-]+(\/[\w- .\/?%&=]*)?$/

Answer 10

var reg = /^[.\w]+@[a-z\-0-9]+\.[\w.\-]+$/i;这好像是邮件地址，楼主说的是网址。