package main

	import (
		"crypto/md5"
		"encoding/hex"
		"fmt"
		"io/ioutil"
		"log"
		"net/http"
		"net/url"
		"strconv"
		"time"
	)

	func main() {
		license := "L01234567890123P"
		secret := "ABCDEFGHIJKLMNOP"
		ts := strconv.FormatInt(time.Now().Unix(), 10)
		uri := "https://api-ip.abuyun.com/obtain"

		queries := url.Values{}
		queries.Set("license", license)
		queries.Set("time", ts)
		// queries.Set("cnt", "1") // 获取代理数（可选）

		signBytes := md5.Sum([]byte(license + ts + secret))
		queries.Set("sign", hex.EncodeToString(signBytes[:]))

		response, err := http.Get(uri + "?" + queries.Encode())
		if err != nil {
			log.Fatalln("Failure : ", err)
		}
		defer response.Body.Close()

		respBody, _ := ioutil.ReadAll(response.Body)
		fmt.Println("response Body : ", string(respBody))
	}