python代码 将'12345'转换为12345

# 将'12345'转换为12345


s = input("请输入一段字符串:")

length = len(s)

sum = 0

for i in range(len(s)):

    sum = sum + (ord(s[i] ) - 48) * (10 ** (length - 1))

    length = length - 1

print(sum)