寻找反转sprintf()函数输出的算法

def reverse_sprintf(s):
    arr = list(s)
    binary_str = ""
    for c in arr:
        binary_str += format(ord(c), '08b')
    binary_str = binary_str[::-1]
    decimal_num = int(binary_str, 2)
    reversed_str = ""
    for i in range(len(arr)):
        reversed_str += chr(decimal_num % 256)
        decimal_num //= 256
    return reversed_str