number1 = int(input("请输入数字")) number2 = int(input("请输入数字")) fraction = number1 sum = number1 for i in range(number2-1): fraction = fraction * 10 + number1 sum = sum + fraction print(sum)
python 求sum=a+aa+aaa+aaaa+aa...a的值,其中a是一个数字。
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