#!/user/bin env python

# author:Simple-Sir

# time:2019/8/8 21:00

# 下载进度

from urllib import request

import time

def downPercent(blockNum,blockSize,totalSize):

    '''

    回调函数，下载进度

    :param blockNum:已经下载的数据块

    :param blockSize:数据块的大小

    :param totalSize:要下载文件总大小

    '''

    downed = blockNum*blockSize/1024  # 已下载大小 kb

    totalSize = totalSize/1024  # 总大小 kb

    p = round(downed/totalSize*100,2)  # 已下载百分比

    downWait = totalSize-downed  # 待下载大小 kb

    if p>100:

        p=100

    if downWait<0:

        downWait=0

    nowtime = time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time()))

    print('{} 文件总大小：{}'.format(nowtime,totalSize))

    print('{} 已下载：{}(\033[36;1m{}%\033[0m)'.format(nowtime,downed, p))

    print('{} 待下载：{}(\033[31;1m{}%\033[0m)'.format(nowtime,downWait, round(100-p,2)))

def download():

    url = 'https://cdn.mysql.com//Downloads/MySQLInstaller/mysql-installer-community-5.7.27.0.msi'  # mysql数据库下载

    startTime = time.time()

    request.urlretrieve(url,'mysql-installer-community-5.7.27.0.msi',downPercent)

    endTime = time.time()

    print('文件已下载完成！总用时：',time.strftime('%M:%S', time.localtime(endTime-startTime)))

if __name__ == '__main__':

    download()