以下程序输出结果为main(){ int x=1,y=2;printf("x=%d y=%d *sum*=%d\n",x,y,x+y);}
写出下面程序的运行结果main(){char c1='a',c2='b',c3='c';printf("a%cb%cc%c\n",c1,c2,c3);}
写出下面程序的运行结果main(){int a=12,b=15;printf("a=%d%,b=%d%%\n",a,b);}
指出下面程序错误的原因,并改正错误main(){long a,b;float x,y;scanf("%d,%d\n",a,b);scanf("%5.2f,%5.2f\n",x,y);printf("x=%d,y=%d\n",x,y);}