前缀和后缀

#include

void main()

{

    int a = 1, b = 1;

    int aplus = a ++ ,plusb = ++b ;

    printf( " a aplus b plusb \ n ");

    printf( "%1d %5d %5d %5d \n ", a , aplus ,b ,plusb);

}

四种类型的语句

四种类型的语句

#include

#define MAX1 100

void main()

{

    int count , sum ;

    count =0;

    sum  =0;

    while( count ++  <20 ) {

        sum  += count;

    }

    printf("sum = %d \n ",sum);

}