C++ Http POST 400错误请求

#include <iostream>
#include <curl/curl.h>

int main() {
    CURL* curl = curl_easy_init();
    if (curl) {
        // 设置请求的URL
        curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/api/endpoint");

        // 设置POST请求
        curl_easy_setopt(curl, CURLOPT_POST, 1L);

        // 设置POST数据
        curl_easy_setopt(curl, CURLOPT_POSTFIELDS, "param1=value1&param2=value2");

        // 发送请求
        CURLcode res = curl_easy_perform(curl);
        if (res != CURLE_OK) {
            std::cerr << "Failed to send HTTP request: " << curl_easy_strerror(res) << std::endl;
        }

        // 清理资源
        curl_easy_cleanup(curl);
    }

    return 0;
}