python复制文件，读取行

# -*- codeing = utf-8 -*-
# @Time : 2021/12/29
# @Author : YueJian 

'''
try:
    print("------test------")
    f = open("test.txt", "r")
    print("------test2-----")
    print(num)

except Exception as result:
    print(result)
'''

import time

# try except finally
'''
try:
    f=open("gushi.txt","r")
    try:
        while True:
            content = f.readline()
            if len(content)==0:
                break
            time.sleep(2)
            print(content)
    finally:
        f.close()
        print("关闭文件")

except Exception as result:
    print("发生异常")

'''
# 复制古诗
try:

    f = open("gushi.txt", "r")
    w = open("test.txt", "w")
    try:
        while True:
            content = f.readline()
            if len(content) == 0:
                break
            w.write(content)
    finally:
        print("复制完成")
        f.close()
        w.close()
except Exception as result:
    print("发生异常")
    print(result)