求問哪里有問題？感覺邏輯對啊
?sum = 0 x = 1 n = 1 while True: ? ?sum = sum + x ? ?
x = 2**n ? ?n = n+1 ? ?if n > 19: ? ? ? ?break
?print sum
舉報
0/150
提交
取消
?sum = 0 x = 1 n = 1 while True: ? ?sum = sum + x ? ?
x = 2**n ? ?n = n+1 ? ?if n > 19: ? ? ? ?break
?print sum
2017-07-10
舉報
2017-07-10
兩個**是求冪
2017-07-11
弱弱的問一下2的n次方怎么寫？