Theqiqi_blog

[toc] 用C语言在windows中使用https协议浏览网页 安装openssl库 在使用OpenSSL的静态链接库时，除了添加 libcrypto.lib;libssl.lib;，还需要添加系统的依赖库：crypt32.lib;WS2_32.lib; 1.用C语言在windows中使用https协议浏览https://www.bilibili.com/WinClient.c123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138 ...

[toc] 用C语言在windows中使用http协议浏览网页1.用C语言在windows中使用http协议浏览静态网页WinServer.c这个服务器程序将能够处理GET请求，并返回一个简单的HTML页面。 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113//WinServer.c#include <stdio.h>#include <stdlib.h>#include <string.h>#include <winsock2.h>#pragma comment(lib, "ws2_32.lib")#pra ...

[toc] 用C语言在windows中使用http协议发送文本消息1. 用C语言在windows中使用http协议创建一个服务端程序，输出hello,world WinServer.c 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889//WinServer.c#include <stdio.h>#include <stdlib.h>#include <string.h>#include <winsock2.h>#pragma comment(lib, "ws2_32.lib")#define PORT 8080#define BUFFER_SIZE 1024void handle_request(SOCKET client_so ...

[toc] 使用GDI在VM_PAINT消息中画图1.在窗口程序中画一个像素点12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152#include <windows.h>// 窗口过程函数LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) { switch (uMsg) { case WM_PAINT: { PAINTSTRUCT ps; HDC hdc = BeginPaint(hwnd, &ps); // 设置像素颜色为红色 SetPixel(hdc, 40, 40, RGB(255, 0, 0)); EndPaint(hwnd, &ps); } break; case WM_ ...

[toc] 用C语言在windows中使用UDP协议发送文本消息1.用C语言在windows中使用UDP协议发送一句文本消息1.使用C语言在windows中创建服务端程序接收一句文本消息12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970//WinServer.c#include <winsock2.h>#include <ws2tcpip.h>#include <stdio.h>#include <stdlib.h>#pragma comment(lib, "WS2_32.lib")#define BUF_SIZE 256int main() { WSADATA wsaData; SOCKET sock; struct sockaddr_in serverAddr, client ...

[toc] 用C语言在windows中使用TCP协议发送文本消息1.用C语言在windows中使用TCP协议发送一句文本消息1.使用C语言在windows中创建服务端程序接收一句文本消息123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778//WinServer.c#include <stdio.h>#include <stdlib.h>#include <string.h>#include <winsock2.h>#include <ws2tcpip.h>#pragma comment(lib, "ws2_32.lib") // 链接 Winsock 库int main() { WSADATA wsaData; SOCKET serverSoc ...

[toc] 使用C语言在Windows中创建一个MIDI格式的文件1.使用C语言在Windows中创建一个MIDI格式的文件(未能成功)123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121#define _CRT_SECURE_NO_WARNINGS#include <stdio.h>#include <stdint.h>typedef struct { char chunk_type[5]; // Chunk type uint32_t header_size; // Header s ...

[toc] 使用C语言将PCM文件转为对应的音符与频率(毫无准确率)1.准备FFTW64库 使用vcpkg安装fftw3库 2.使用C语言将PCM文件转为对应的频率123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354#define _CRT_SECURE_NO_WARNINGS#include <stdio.h>#include <stdlib.h>#include <fftw3.h>#include <math.h>void analyze_pcm(const char* filename) { // 打开 PCM 文件 FILE* file = fopen(filename, "rb"); if (!file) { printf("无法打开文件: %s\n", filename); ...

[toc] 用C语言与音符播放钢琴曲梦中的婚礼1.使用MDI函数播放钢琴曲卡农1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253#include <stdio.h>#include <windows.h>#pragma comment(lib, "winmm.lib")enum Scale { Rest = 0, C8 = 108, B7 = 107, A7s = 106, A7 = 105, G7s = 104, G7 = 103, F7s = 102, F7 = 101, E7 = 100, D7s = 99, D7 = 98, C7s = 97, C7 = 96, B6 = 95, A6s = 94, A6 = 93, G6s = 92, G6 = 91, F6s = 90, F6 = 89, E6 = 88, D6s = 87, D6 = 86, C6s = 8 ...

[toc] C语言将PCM编码成WAV文件 准备一个pcm文件 编写代码并编译main.exe 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899#include <stdio.h>#include <stdlib.h>#include <string.h>#include <stdint.h>#include <assert.h>#include <sys/stat.h>#pragma warning(disable:4996)size_t getFileSize(const char* filename) { struct stat st; if (stat(f ...