python3中的while语句、if语句
a = 1
while a <= 7:if a % 2 == 0:print(str(a) + " is even.")else:print(str(a) + " is odd.")a += 1
输出结果是:
r@r-Sys:~/python$ python3 4.py
1 is odd.
2 is even.
3 is odd.
4 is even.
5 is odd.
6 is even.
7 is odd.
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