getQueryString(name, urls) {

                var url = urls; // 获取URL

                // console.log(url, 'url***');

                var pattern = new RegExp("[\?\&]" + name + "=([^\&]+)", "i"); // 正则匹配URL

                var matcher = pattern.exec(url);

                if (matcher == null || matcher.length < 1) {

                    return "没有该参数";

                }

                return decodeURIComponent(matcher[1]); // 输出指定的参数值 中文也可以

            },

let url ='http://192.168.1.70:98/sign/index.html?qr_type=2&id=fb094d5e50b74c828b19610d83eafdad'

let paramId = this.getQueryString('id', url)

console.log('paramId:',paramId)  //paramId:fb094d5e50b74c828b19610d83eafdad

// let paramId = url.split("?")[1].split("id=")[1]; //取得参数