腾讯定位ip，解决jsonp请求时候，校验sig的干扰，错误-签名验证失败

  <script>
        var key='xxxx-xxxx-xxxx-xxxx';//创建应用后的key值
        var sk='XXXXXXXXXXXXXXXXXXXX';//选择签名验证后生成的sk
        var jsonpcallback='jquery12138';
            
        var sss=md5('/ws/location/v1/ip？callback='+jsonpcallback+'&key='+key+'&output=jsonp'+sk);
       
        $.ajax({
            type:'get',
            cache:true,//不加会有_随机数，影响md5加密
            url:'https://apis.map.qq.com/ws/location/v1/ip?key='+key+'&output=jsonp&sig='+sss,
            dataType: 'jsonp',
            jsonpCallback: jsonpcallback,//保持名称一致，防止出现签名错误
   
    success:function (res){
    .............
}
    })
    </script>