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var getLocation = function (successFunc, errorFunc) { //successFunc获取定位成功回调函数，errorFunc获取定位失败回调

    //首先设置默认城市

    var defCity = {

        id: '000001',

        name: '北京市',

        date: curDateTime()//获取当前时间方法

    };

    //默认城市

    $.cookie('VPIAO_MOBILE_DEFAULTCITY', JSON.stringify(defCity), { expires: 1, path: '/' });

    if (navigator.geolocation) {

        navigator.geolocation.getCurrentPosition(function (position) {

            var lat = position.coords.latitude;

            var lon = position.coords.longitude;

            //var map = new BMap.Map("container");   // 创建Map实例

            var point = new BMap.Point(lon, lat); // 创建点坐标

            var gc = new BMap.Geocoder();

            gc.getLocation(point, function (rs) {

                var addComp = rs.addressComponents;

                var curCity = {

                    id: '',

                    name: addComp.province,

                    date: curDateTime()

                };

                //当前定位城市

                $.cookie('VPIAO_MOBILE_CURRENTCITY', JSON.stringify(curCity), { expires: 7, path: '/' });

                //alert(addComp.province + ", " + addComp.city + ", " + addComp.district + ", " + addComp.street);

                if (successFunc != undefined)

                    successFunc(addComp);

            });

        },

        function (error) {

            switch (error.code) {

                case 1:

                    alert("位置服务被拒绝。");

                    break;

                case 2:

                    alert("暂时获取不到位置信息。");

                    break;

                case 3:

                    alert("获取位置信息超时。");

                    break;

                default:

                    alert("未知错误。");

                    break;

            }

            var curCity = {

                id: '000001',

                name: '北京市',

                date: curDateTime()

            };

            //默认城市

            $.cookie('VPIAO_MOBILE_DEFAULTCITY', JSON.stringify(curCity), { expires: 1, path: '/' });

            if (errorFunc != undefined)

                errorFunc(error);

        }, { timeout: 5000, enableHighAccuracy: true });

    } else {

        alert("你的浏览器不支持获取地理位置信息。");

        if (errorFunc != undefined)

            errorFunc("你的浏览器不支持获取地理位置信息。");

    }

};

var showPosition = function (position) {

    var lat = position.coords.latitude;

    var lon = position.coords.longitude;

    //var map = new BMap.Map("container");   // 创建Map实例

    var point = new BMap.Point(lon, lat); // 创建点坐标

    var gc = new BMap.Geocoder();

    gc.getLocation(point, function (rs) {

        var addComp = rs.addressComponents;

        var curCity = {

            id: '',

            name: addComp.province,

            date: curDateTime()

        };

        //当前定位城市

        $.cookie('VPIAO_MOBILE_CURRENTCITY', JSON.stringify(curCity), { expires: 7, path: '/' });

        //alert(addComp.province + ", " + addComp.city + ", " + addComp.district + ", " + addComp.street);

    });

};

var showPositionError = function (error) {

    switch (error.code) {

        case 1:

            alert("位置服务被拒绝。");

            break;

        case 2:

            alert("暂时获取不到位置信息。");

            break;

        case 3:

            alert("获取位置信息超时。");

            break;

        default:

            alert("未知错误。");

            break;

    }

    var curCity = {

        id: '000001',

        name: '北京市',

        date: curDateTime()

    };

    //默认城市

    $.cookie('VPIAO_MOBILE_DEFAULTCITY', JSON.stringify(curCity), { expires: 1, path: '/' });

};

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<script type="text/javascript" src="http://fw.qq.com/ipaddress"></script>

<script type="text/javascript">

    document.write(IPData[0]);    //显示IP地址

    document.write(IPData[2]);    //显示省

    document.write(IPData[3]);    //显示市

</script>

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<script type="text/javascript">

        $.getScript('http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js', function(_result) {

            if (remote_ip_info.ret == '1') {

                alert('国家：' + remote_ip_info.country + '<BR>省：' + remote_ip_info.province + '<BR>市：' + remote_ip_info.city + '<BR>区：' + remote_ip_info.district + '<BR>ISP：' + remote_ip_info.isp + '<BR>类型：' + remote_ip_info.type + '<BR>其他：' + remote_ip_info.desc);

            } else {

                alert('没有找到匹配的IP地址信息！');

            }

        });

</script>

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<script>

var ip = "124.127.108.133";

            var url = "http://ip.taobao.com/service/getIpInfo.php?ip=" + ip;

            $.getJSON(url, function (json) {

                var myprovince2 = json.data.area;

                var mycity2 = json.data.region;

                alert("您所在的城市是：" + myprovince2 + mycity2);

            });

</script>

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<script>

var url = 'http://chaxun.1616.net/s.php?type=ip&output=json&callback=?&_=' + Math.random();

            $.getJSON(url, function(data) {

                alert(data.Ip);

            });

</script>