3-30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 sys,os
src = sys.argv[1]
res = 0

def size_of_file(file):
    global res
    for file1 in os.listdir(r'%s'%file):
        path = os.path.join(file,file1)
        print(path)
        if os.path.isfile(path):
            res += os.path.getsize(src)
        else:
            size_of_file(path)

if os.path.isfile(r'%s'%src):
    res = os.path.getsize(src)
else:
    size_of_file(src)
print(res)

# 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
(一)随机验证码

import random

def make_code(size):
    res=''
    for x in range(size):
        l1=chr(random.randint(65,90))
        l2=str(random.randint(0,9))
        res+=random.choice([l1,l2])
    return res
print(make_code(8))

(二)模拟下载及打印进度条

import time
def progress(percent):
    if percent>1:
        percent=1
    res = int(66 * percent) * '$'
    print('\r[%-50s] %d%%' % (res, int(100 * percent)), end='')

recv_size=0
data_size=102411

while recv_size < data_size:
    time.sleep(0.08) #模拟数据的传输延迟时间
    recv_size+=1024 #下载了1024个字节的数据

    percent=recv_size/data_size #接收的比例
    progress(percent)                     

  

(三)文件copy脚本

import sys
import os

file_path = sys.argv
def copy(src, dst):
    name = os.path.basename(src)
    print(name)
    if os.path.isfile(dst):
        print('目标路径不是个文件夹')
        return None
    dst = os.path.join(dst,name)
    with open(src,'rb') as f1,\
        open(dst,'wb') as f2:
        f2.write(f1.read())

copy(file_path[1],file_path[2])