如何js正则表达式判断ip地址的合法性?

xiaoxiao2021-02-28  59

function isValidIP(ip) { var reg = /^(\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])$/ return reg.test(ip); } function submitForm(){ var ip = $("#ipAddress").val(); if(!isValidIP(ip)) { swal({ title:"请输入正确的ip地址", type:"warning" }); return; } ..... }
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