https://www.microsoft.com/zh-CN/download/details.aspx?id=42642

https://www.microsoft.com/zh-cn/download/details.aspx?id=40784

https://www.microsoft.com/zh-cn/download/details.aspx?id=48145

http://127.0.0.1:24401/

import requests

with open('./1.jpg', 'rb') as f:
    img = f.read()

## params 为GET参数 data 为POST Body
result = requests.post('http://127.0.0.1:24401/', params={'threshold': 0.1},
                                                  data=img).json()

FileStream fs = new FileStream("./img.jpg", FileMode.Open);
BinaryReader br = new BinaryReader(fs);
byte[] img = br.ReadBytes((int)fs.Length);
br.Close();
fs.Close();
string url = "http://127.0.0.1:8402?threshold=0.1";
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
request.Method = "POST";
Stream stream = request.GetRequestStream();
stream.Write(img, 0, img.Length);
stream.Close();

WebResponse response = request.GetResponse();
StreamReader sr = new StreamReader(response.GetResponseStream());
Console.WriteLine(sr.ReadToEnd());
sr.Close();
response.Close();

#include <sys/stat.h>
#include <curl/curl.h>
#include <iostream>
#include <string>
#define S_ISREG(m) (((m) & 0170000) == (0100000))   
#define S_ISDIR(m) (((m) & 0170000) == (0040000))   

size_t write_callback(void *ptr, size_t size, size_t num, void *data) {
    std::string *str = dynamic_cast<std::string *>((std::string *)data);
    str->append((char *)ptr, size*num);
    return size*num;
}

int main(int argc, char *argv[]) {
    const char *post_data_filename = "./img.jpg";
    FILE *fp = NULL;
    std::string response;
    struct stat stbuf = { 0, };
    fp = fopen(post_data_filename, "rb");
    if (!fp) {
        fprintf(stderr, "Error: failed to open file \"%s\"\n", post_data_filename);
        return -1;
    }
    if (fstat(fileno(fp), &stbuf) || !S_ISREG(stbuf.st_mode)) {
        fprintf(stderr, "Error: unknown file size \"%s\"\n", post_data_filename);
        return -1;
    }
    CURL *curl;
    CURLcode res;
    curl_global_init(CURL_GLOBAL_ALL);
    curl = curl_easy_init();
    if (curl != NULL) {
        curl_easy_setopt(curl, CURLOPT_URL, "http://127.0.0.1:24401?threshold=0.1");
        curl_easy_setopt(curl, CURLOPT_POST, 1L);
        curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE_LARGE,(curl_off_t)stbuf.st_size);
        curl_easy_setopt(curl, CURLOPT_READDATA, (void *)fp);
		curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_callback);
        curl_easy_setopt(curl, CURLOPT_WRITEDATA, &response);
        res = curl_easy_perform(curl);

        if (res != CURLE_OK) {
            fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res));
        }
        std::cout << response << std::endl; // response即为返回的json数据
        curl_easy_cleanup(curl);
    }
    curl_global_cleanup();
    fclose(fp);
    return 0;
}