printf("x=%d,y=%d\n",x,y);中\n的作用是啥?

printf("x=%d,y=%d\n",x,y);中\n的作用是啥? main() { int x=10; int y=x++; printf("%d,%d\n",(x++,y),y++); printf("%d%d\n",x,y); 中("%d%d\n",x, int x=12,y=8; printf("%d\t%d\t%d\n",x,x&y,x|y); int x=10,y=20; main() {func();printf("%d,%d\n",x,y);} func() x+=y+=z; printf("%d\n",z+=x>y?x++:y++);过程是怎么的? 以下程序的输出结果是() int x=10,y=10;printf("%d %d\n",x--,--y); 设int x=9,y=9,则printf("%d,%d\n",x--,--y);语句的输出结果是 int x=3,y=2,z=1;printf("%d\n",x/y&~z) main() { int x=2002,y=2003; printf("%d\n",(x,y)); } 为什么结果是20 设有如下程序段：int x=2002,y=2003;printf("%d\n",(x,y)) main() { int x=2002,y=2003; printf("%d\n",(x,y)); }