第一个SDK程序

#include<windows.h>int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nShowCmd){/*单字节版本*/MessageBoxA(NULL, "HelloWolrd!", "title", MB_OK);return 0;}/*1.使用的是单字节版本2.LPSTR == char *3.MessageBoxA为单字节版本，MessageBoxB为双字节版本*/#include<windows.h>int WINAPI wWinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPWSTR lpCmdLine,int nShowCmd){/*双字节版本*/MessageBoxW(NULL, L"HelloWolrd!", L"title", MB_OK);return 0;}#include<windows.h>#include<tchar.h>int WINAPI _tWinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPTSTR lpCmdLine,int nShowCmd){/*兼容版本*/MessageBox(NULL, _T("张玉尧，你好！"), _T("标题"), MB_OK);return 0;}#include<windows.h>#include<tchar.h>int WINAPI _tWinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPTSTR lpCmdLine,int nShowCmd){/*练习使用wsprintf函数（实际上也是一个宏）*/int i, sum = 0;TCHAR str[10];for(i = 1; i <= 100; i++){sum += i;}wsprintf(str, "%d", sum);MessageBox(NULL, str, _T("1+2+...+100"), MB_OK);return 0;}