原理:将url字符串以“=”分割成两部分,取第二部分就可以了
var url = "http://192.168.100.47:8080/cloud-manage/html/cloud-monitor/detail.html?IP=192.168.106.17";
if(url.indexOf("?")!=-1){var str = url.substr(1);
strs= str.split("&");
strs[0].split("=")[1];
var ip = strs[0].split("=")[1];
console.log(ip);
}