func httpPost() {

    resp, err := http.Post("https://www.abcd123.top/api/v1/login",

        "application/x-www-form-urlencoded",

        strings.NewReader("username=test&password=ab123123"))

    if err != nil {

        fmt.Println(err)

    }

    defer resp.Body.Close()

    body, err := ioutil.ReadAll(resp.Body)

    if err != nil {

        // handle error

    }

    fmt.Println(string(body))

}

func httpPostForm() {

    resp, err := http.PostForm("https://www.denlery.top/api/v1/login",

        url.Values{"username": {"auto"}, "password": {"auto123123"}})

    if err != nil {

        // handle error

    }

    defer resp.Body.Close()

    body, err := ioutil.ReadAll(resp.Body)

    if err != nil {

        // handle error

    }

    fmt.Println(string(body))

}

func httpPostJson() {

    jsonStr :=[]byte(`{ "username": "auto", "password": "auto123123" }`)

    url:= "https://www.denlery.top/api/v1/login"

    req, err := http.NewRequest("POST", url, bytes.NewBuffer(jsonStr))

    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}

    resp, err := client.Do(req)

    if err != nil {

        // handle error

    }

    defer resp.Body.Close()

    statuscode := resp.StatusCode

    hea := resp.Header

    body, _ := ioutil.ReadAll(resp.Body)

    fmt.Println(string(body))

    fmt.Println(statuscode)

    fmt.Println(hea)

}