直接上,冲冲冲 #方法1:对切片的掌握:[::-1],取反 # while True: # num = input("请输入一个不能超过十位数的整数:") # num = num[::-1] # num = int(num) # print(num) 方法2: n = int(input('请输入一个数字')) b = 0 while n: a = n%10 n = n//10 b = b*10 + a print(b)