qt libcurl发送put

以下是使用Qt和libcurl发送PUT请求的示例代码：

#include <QtCore/QCoreApplication>
#include <curl/curl.h>

// This function will be called by libcurl when it has data to send
static size_t write_callback(void *ptr, size_t size, size_t nmemb, void *userdata)
{
    // Here you can handle the response from the server
    return size * nmemb;
}

int main(int argc, char *argv[])
{
    QCoreApplication app(argc, argv);

    // Initialize libcurl
    curl_global_init(CURL_GLOBAL_ALL);

    // Create a new curl handle
    CURL *curl = curl_easy_init();
    if (!curl) {
        // Handle error
        return -1;
    }

    // Set the URL for the request
    curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/your-resource");

    // Set the HTTP method to PUT
    curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "PUT");

    // Set the data to send in the request body
    const char *data = "Hello, world!";
    curl_easy_setopt(curl, CURLOPT_POSTFIELDS, data);

    // Set the size of the data to send
    curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, strlen(data));

    // Set the callback function to handle the response from the server
    curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_callback);

    // Perform the request
    CURLcode res = curl_easy_perform(curl);
    if (res != CURLE_OK) {
        // Handle error
    }

    // Clean up
    curl_easy_cleanup(curl);
    curl_global_cleanup();

    return app.exec();
}