题解 | #密码游戏#
密码游戏
https://www.nowcoder.com/practice/36641ab168664384aff798ba7ce34bc1
num = input()
num = list(num)
for i in range(len(num)):
number = int(num[i])
number = (number + 3) % 9
num[i] = str(number)
num = num[2] + num[3] + num[0] + num[1]
print(num)
将字符串转化为列表进行处理，最后进行字符串拼接
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