平时收集了一些正则表达式，总是用完就找不到了，在此做个记录。
1.验证网址：
/^([hH][tT]{2}[pP]:\/\/|[hH][tT]{2}[pP][sS]:\/\/|www\.)(([A-Za-z0-9-~]+)\.)+([A-Za-z0-9-~\/])+$/
2.验证ip
/^((2[0-4]\d|25[0-5]|[01]?\d\d?)\.){3}(2[0-4]\d|25[0-5]|[01]?\d\d?)$/
3.验证mac地址
/^[A-F0-9]{2}([-:]?[A-F0-9]{2})([-:.]?[A-F0-9]{2})([-:]?[A-F0-9]{2})([-:.]?[A-F0-9]{2})([-:]?[A-F0-9]{2})$/
4、验证端口号
/^([0-9]|[1-9]\d|[1-9]\d{2}|[1-9]\d{3}|[1-5]\d{4}|6[0-4]\d{3}|65[0-4]\d{2}|655[0-2]\d|6553[0-5])$/
5.验证非负整数
/^[0-9]+?$/
6.ip+端口验证
/^(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])(\:([0-9]|[1-9]\d{1,3}|[1-5]\d{4}|6[0-5]{2}[0-3][0-5])){0,1}$/
