把九九乘法表写入文件

# -*- coding: utf-8 -*-
# 2021/8/17


with open('D:/99乘法表.txt','w+') as file1:
    for i in range(1,10):
        for j in range(1,i+1):
            file1.write(f'{j}*{i}={i*j}\t')
        file1.write('\n')