Windows系统下源代码下载编译、安装方式如下：
https://blog.csdn.net/fxbjye/article/details/89152849
编译后得到库文件，把这两个文件复制到项目文件中，

修改项目文件的属性，

修改附加依赖项：

输入代码：

#include <stdio.h> 
#include <string.h> 
#include <curl.h> #define MAX_BUF 	 65536 char wr_buf[MAX_BUF + 1];
int  wr_index;/*
* Write data callback function (called within the context of
* curl_easy_perform.
*/
size_t write_data(void *buffer, size_t size, size_t nmemb, void *userp)
{int segsize = size * nmemb;/* Check to see if this data exceeds the size of our buffer. If so,* set the user-defined context value and return 0 to indicate a* problem to curl.*/if (wr_index + segsize > MAX_BUF) {*(int *)userp = 1;return 0;}/* Copy the data from the curl buffer into our buffer */memcpy((void *)&wr_buf[wr_index], buffer, (size_t)segsize);/* Update the write index */wr_index += segsize;/* Null terminate the buffer */wr_buf[wr_index] = 0;/* Return the number of bytes received, indicating to curl that all is okay */return segsize;
}/*
* Simple curl application to read the index.html file from a Web site.
*/
int main(void)
{CURL *curl;CURLcode ret;int  wr_error;wr_error = 0;wr_index = 0;/* First step, init curl */curl = curl_easy_init();if (!curl) {printf("couldn't init curl\n");return 0;}/* Tell curl the URL of the file we're going to retrieve */curl_easy_setopt(curl, CURLOPT_URL, "www.baidu.com");/* Tell curl that we'll receive data to the function write_data, and* also provide it with a context pointer for our error return.*/curl_easy_setopt(curl, CURLOPT_WRITEDATA, (void *)&wr_error);curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);/* Allow curl to perform the action */ret = curl_easy_perform(curl);printf("ret = %d (write_error = %d)\n", ret, wr_error);/* Emit the page if curl indicates that no errors occurred */if (ret == 0) printf("%s\n", wr_buf);curl_easy_cleanup(curl);return 0;
}

输出结果为：