for ( x = 0, y = 0; (y = 123 ) && ( x<4 ); x + + );

for ( t = 1 ; t < = 100, t + + )

{scanf ("%d", &x);

    if ( x <0 ) continue;

    printf ("%3d", t );

}

a=1; b=2; c=2;

while (a<b<c) {t = a ; a = b ; b = t ; c - - ;}

printf ("%d , %d, %d", a , b , c);

void fun(char *p2, char *p1)

    { while((*p2=*p1)!='\0')

    { p1++;p2++; } }

函数的功能是

void main( )

{ int i=0, s=0;

do{

if(!(i%3)) {

              i++;continue;}

              i++;

              s+=i;

} while(i<7);

printf("%d\n", s);

}

执行后输出的结果是

                                                   c <CR>

                                                   def <CR>

(<CR>表示回车)则下面程序的运行结果是

# include <stdio.h>

# define N 6

void main ( )

{char c [N];

int i= 0;

for ( ;i < N; c[i] = getchar ( ),i++);

for (i = 0; i < N; i++) putchar(c[i]);

}

void main ( )

{int a , b , k = 4, m = 6, *p1 = &k , *p2 = &m;

a = p1 = = &m;

b = ( -*p1) / (*p2) + 7;

printf (" a = % d\n ", a );

printf (" b = % d\n ", b );}