python第22天作业

今日作业：

1、检索文件夹大小的程序

要求执行方式如下python3.8 run.py 文件夹

import os
import sys

file_list = os.listdir(sys.argv[1])

def file_size(file_list,size = 0):
    for file in file_list:
        if not os.path.isfile(file):
            file_list = os.listdir(file)
            if not file_list:
                return file_size(file_list,size)
            else:
                continue
        else:
            size += os.path.getsize(file)

file_size(file_list)

2、明天上午日考：随机验证码、模拟下载以及打印进度条、文件copy脚本

1、随机验证码

import random
def make_code(size=4):
    res=''
    for i in range(size):
        s1=chr(random.randint(65,90))
        s2=str(random.randint(0,9))
        s3=chr(random.randint(97,122))
        print(res)
    return res

print(make_code(6))

2、模拟下载以及打印进度条

import time

def progress(percent):
    if percent > 1:
        percent = 1
    res = int(50 * percent) * '>'
    print('
 [%-50s] %d%%' % (res,percent*100), end='')

recv_size = 0
total_size = 33333

while recv_size < total_size:
    time.sleep(0.2)
    recv_size += 1024
    percent = recv_size / total_size    
    progress(percent)

3、文件copy脚本

src_file = sys.argv[1]
dst_file = sys.argv[2]

with open(r'%s'%src_file, mode='rb') as read_f,
    open(r'%s'%dst_file, mode='wb') as write_f:
    for line in read_f:
        write_f.write(line)