/*--------------------------------------------------------------

   HelloMsg.c -- Displays "Hello, Windows 98!" in a message box

                 (c) Charles Petzold, 1998

  --------------------------------------------------------------*/

#include <windows.h>

int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,

                    PSTR szCmdLine, int iCmdShow)

{

     MessageBox (NULL, TEXT ("Hello, Windows 98!"), TEXT ("HelloMsg"), ) ;

     return  ;

}

/*-----------------------------------------------------

   SCRNSIZE.C -- Displays screen size in a message box

                 (c) Charles Petzold, 1998

  -----------------------------------------------------*/

#include <windows.h>

#include <tchar.h>

#include <stdio.h>     

int CDECL MessageBoxPrintf (TCHAR * szCaption, TCHAR * szFormat, ...)

{

     TCHAR   szBuffer [] ;

     va_list pArgList ;

          // The va_start macro (defined in STDARG.H) is usually equivalent to:

          // pArgList = (char *) &szFormat + sizeof (szFormat) ;

     va_start (pArgList, szFormat) ;

          // The last argument to wvsprintf points to the arguments

     _vsntprintf (szBuffer, sizeof (szBuffer) / sizeof (TCHAR),

                  szFormat, pArgList) ;

          // The va_end macro just zeroes out pArgList for no good reason

     va_end (pArgList) ;

     return MessageBox (NULL, szBuffer, szCaption, ) ;

}

int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,

                    PSTR szCmdLine, int iCmdShow)

{

     int cxScreen, cyScreen ;

     cxScreen = GetSystemMetrics (SM_CXSCREEN) ;

     cyScreen = GetSystemMetrics (SM_CYSCREEN) ;

     MessageBoxPrintf (TEXT ("ScrnSize"),

                       TEXT ("The screen is %i pixels wide by %i pixels high."),

                       cxScreen, cyScreen) ;

     return  ;

}

#include <stdio.h>

int main()

{

int a[];

int i;

for(i=;i<;i++)

{

    scanf("%d",&a[i]);

//}

//for(i=0;i<10;i++)

//{

    printf("%d",a[i]);

}

}

#include<stdio.h>

main(void)

{

    int a,i=,b=;

    printf("a=b值为%d\n",a=b);

    printf("a==b值为%d\n",a==b);

}

int a = ;//给a赋值2

int b = a;//给b赋值a，等效于：给b赋值2

if(a==b){//判断a是否等于b

  printf("a等于b");

}else{

  printf("a不等于b");

}

“=”，和“==”理解不