//通过ip获取城市
function getCityByIp() {
    $.getScript(‘https://apis.map.qq.com/ws/location/v1/ip?key=AICBZ-VCXKU-PGXV6-2EQJU-GXN3F-LSF64&output=jsonp&callback=setDefaultCity‘);
}

//设置默认城市
function setDefaultCity(res) {
    res = res || {};
    var info = res.result && res.result.ad_info;
    if (info) {
        var province = info.province,
            city = info.city,
            _p = ‘‘,
            _c = ‘‘;
        if (province && city) {
            chinaRegion.forEach(function (p) {
                if (p.name.indexOf(province.substring(0, province.length - 1)) !== -1) {
                    p.childs.forEach(function (c) {
                        if (c.name.indexOf(city.substring(0, city.length - 1)) !== -1) {
                            _p = p.name;
                            _c = c.name;
                        }
                    });
                }
            });
        }
        indexApp.province = _p;
        indexApp.city = _c;
    }
    indexApp.getData(true);
}