package main

                                            import (
                                                "encoding/json"
                                                "encoding/xml"
                                                "fmt"
                                                "io/ioutil"
                                                "net/http"
                                            )

                                            const (
                                                URL   = "https://api.ip138.com/weather/"
                                                TOKEN = "bd4c2bf9a38ab06f7cae88c9759ee172"
                                            )

                                            //----------------------------------
                                            // 调用示例代码
                                            //----------------------------------

                                            //json struct
                                        type weatherInfoJson struct {
                                                    Ret      string    `json:"ret"`
                                                    Code     int       `json:"code"`
                                                    Province string    `json:"province"`
                                                    City     string    `json:"city"`
                                                    Area     string    `json:"area"`
                                                    Data     todayData `json:"data"`
                                            }

                                            type todayData struct {
                                                    Time         string `json:"time"`
                                                    DayWeather   string `json:"dayWeather"`
                                                    DayTemp      string `json:"dayTemp"`
                                                    DayWind      string `json:"dayWind"`
                                                    NightWeather string `json:"nightWeather"`
                                                    NightTemp    string `json:"nightTemp"`
                                                    NightWind    string `json:"nightWind"`
                                                    Temp         string `json:"temp"`
                                                    Weather      string `json:"weather"`
                                                    Wind         string `json:"wind"`
                                                    Humidity     string `json:"humidity"`
                                                    Pm25         string `json:"pm25"`
                                            }

                                            func getWeather(code int) {

                                                queryUrl := fmt.Sprintf("%s?code=%d&type=%d",URL,code,1)
                                                client := &http.Client{}
                                                reqest, err := http.NewRequest("GET",queryUrl,nil)

                                                if err != nil {
                                                    fmt.Println("Fatal error ",err.Error())
                                                }

                                                reqest.Header.Add("token",TOKEN)
                                                response, err := client.Do(reqest)
                                                defer response.Body.Close()

                                                if err != nil {
                                                    fmt.Println("Fatal error ",err.Error())
                                                }
                                                if response.StatusCode == 200 {
                                                    bodyByte, _ := ioutil.ReadAll(response.Body)
                                                    var info weatherInfoJson
                                                    json.Unmarshal(bodyByte,&info)
                                                    fmt.Println(info.Ip)
                                                }

                                                return
                                            }