在C++中,你可以使用HTTP请求头来设置Content-Type。以下是一个示例代码:
#include <iostream>
#include <curl/curl.h>
int main() {
CURL *curl;
CURLcode res;
curl_global_init(CURL_GLOBAL_ALL);
curl = curl_easy_init();
if (curl) {
curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
struct curl_slist *headers = NULL;
headers = curl_slist_append(headers, "Content-Type: application/json");
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
res = curl_easy_perform(curl);
if (res != CURLE_OK) {
fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res));
}
curl_easy_cleanup(curl);
curl_global_cleanup();
}
return 0;
}
在上面的代码中,我们使用了libcurl库来发送HTTP请求,并在请求头中设置了Content-Type为application/json。你可以根据需要修改Content-Type的值。