古人喜欢吟诗作赋，如果你在下列情况之中，会即兴吟上哪句诗呢？试试看吧！

1．下春雨时：___________________________________________

2．夏天到了：___________________________________________

3．秋天来了：___________________________________________

4．下雪时：_____________________________________________

5．送别友人：___________________________________________

6．思念故乡：___________________________________________

7．登泰山时：___________________________________________

8．游西湖时：___________________________________________

下列程序的运行结果是______。
main()
int x=1,y=2,z=3;
printf("%d,",x＜yy:x);
printf("%d,",z＜yx++:y++);
printf("%d,%d",x,y);