【LeetCode】43.字符串相乘

#!/usr/bin/python3
# -*- coding: utf-8 -*-
# @Time: 2019/3/15
# @Author: xfLi
# The file...

"""
将字符串转化为整数
"""

def multiply(num1, num2):
    num1_int = 0
    num2_int = 0
    for i in range(len(num1)):
        num1_int = num1_int * 10 + int(num1[i])
    for j in range(len(num2)):
        num2_int = num2_int * 10 + int(num2[j])
    mul = num1_int * num2_int
    return str(mul)

if __name__ == '__main__':
    num1 = '123'
    num2 = '456'
    result = multiply(num1, num2)
    print(result)