js中对省市区字符串进行切割
// var address = "辽宁省沈阳市和平区"; // 以这个地址为例
// const address = msg.detail;
// const proExp = ".+[省]",cityExp = ".+[市]",disExp = ".+[区]";
// const province = address.match(new RegExp(proExp)); // 省
// const city = address.match(new RegExp(cityExp))[0].replace(province, ""); // 市
// const district = address.match(new RegExp(disExp))[0].replace(province, "").replace(city, ""); // 区