vue获取用户ip地址（仅限IE浏览器，谷歌无效）
具体代码如下：
/**data里定义变量ip**/ip = ''/**mounted添加下面方法**/this.getUserIP((ip) => {this.ip = ipconsole.log('this.ip====', this.ip)})/**methods添加下面方法**/// 获取用户本地ip的方法getUserIP (onNewIP) {let MyPeerConnection = window.RTCPeerConnection || window.mozRTCPeerConnection || window.webkitRTCPeerConnectionlet pc = new MyPeerConnection({iceServers: []})let noop = () => {}let localIPs = {}let ipRegex = /([0-9]{1,3}(\.[0-9]{1,3}){3}|[a-f0-9]{1,4}(:[a-f0-9]{1,4}){7})/glet iterateIP = (ip) => {if (!localIPs[ip]) onNewIP(ip)localIPs[ip] = true}pc.createDataChannel('')pc.createOffer().then((sdp) => {sdp.sdp.split('\n').forEach(function (line) {if (line.indexOf('candidate') < 0) returnline.match(ipRegex).forEach(iterateIP)})pc.setLocalDescription(sdp, noop, noop)}).catch((reason) => {})pc.onicecandidate = (ice) => {if (!ice || !ice.candidate || !ice.candidate.candidate || !ice.candidate.candidate.match(ipRegex)) returnice.candidate.candidate.match(ipRegex).forEach(iterateIP)}},
