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.