#进度条#

import time

def make_progress(percent,width=50):
    if percent > 1:
        percent=1
    show_str=('[%%-%ds]' %width) %(int(percent * width) * '=')
    print('\r%s %s%%' %(show_str,int(percent * 100)),end='')
    
total_size=113021
recv_size=0
while recv_size < total_size:
    time.sleep(0.5)
    recv_size+=1024
    percent=recv_size / total_size
    make_progress(percent)




#随机码生成#

import random
def make_size(n):
    res=''
    for i in range(n):
        num=str(random.randint(0,9))
        s=chr(random.randint(65,90))
        res+=random.choice([num,s])
    return res
print(make_size(5))