三种版本、A版、W版、T版

#include <Windows.h>

int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPervInstance, LPTSTR lpCmdLine, int nCmdShow)
{
    int i;
    INT i2;

    char c;
    CHAR c2;

    wchar_t c3;
    WCHAR c4;

    TCHAR c5;

    PCHAR a;
    PWCHAR a2;
    PTCHAR a3;

    PSTR b;
    LPSTR b2 = "string";
    PWSTR b3;
    LPWSTR b4 = L"string";
    PTSTR b5;
    LPTSTR b6 = TEXT("string");

    PCSTR d;
    PCWSTR d2;
    PCTSTR d3;

    MessageBoxW(NULL,L"这是W版的Messagebox"，L"Text",MB_OK);
    MessageBoxA(NULL,"这是A版本的","Test",MB_OK);
    MessageBox(NULL,TEXT("这是T版本"),TEXT("Test"),MB_OK);


    system("pause");
    return 0;
}