js_Ipv4以及ipv4段正则校验

js_Ipv4以及ipv4段正则校验

他们都是在支持IPv4的情况下增加的格外校验
只校验ipv4去掉(/\d+)?即可
？:？前面的key出现0次或者

let ipCheck = /^(\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])$/

1.ip+/+多位数字

let ipCheck = /^(\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])(\/\d+)?$/

2.ip+/+1-2位数字

let aaa2 = /^(\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])(\/\d{1,2})?$/

3.校验ip+/+1-32

let zjq9 = /^(\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])(\/(?:[1-9]|[12][0-9]|3[012]))?$/

let t = /^(([0-9]|[1-9][0-9]|1[0-9]{
   2}|2[0-4][0-9]|25[0-5])\\.){
   3}([0-9]|[1-9][0-9]|1[0-9]{
   2}|2[0-4][0-9]|25[0-5])(\\/([1-9]|[1-2][0-9]|30|31|32))?$/;