循环使用 else 语句
在 python 中,for … else 表示这样的意思,for 中的语句和普通的没有区别,else 中的语句会在循环正常执行完(即 for 不是通过 break 跳出而中断的)的情况下执行,while … else 也是一样。
#!/usr/bin/python count = 0 while count < 5: print count, " is less than 5" count = count + 1 else: #其实此处的count已经不满足<5的条件了,while此处类似if的作用了. print count, " is not less than 5" 以上实例输出结果为: 0 is less than 5 1 is less than 5 2 is less than 5 3 is less than 5 4 is less than 5 5 is not less than 5