- import random
- def make_code(n):
- res=''
- for i in range(n):
- s1=chr(random.randint(65,90))
- s2=str(random.randint(0,9))
- res+=random.choice([s1,s2])
- return res
- print(make_code(9))
- #========= 实现打印进度条函数 ==========
- import sys
- import time
- def progress(percent,width=50):
- if percent>= 1:
- percent=1
- show_str=('[%%-%ds]' %width) %(int(width*percent)*'#')
- print('\r%s %d%%' %(show_str,int(100*percent)),file=sys.stdout,flush=True,end='')
- #========= 应用 ==========
- data_size=1025
- recv_size=0
- while recv_size < data_size:
- time.sleep(0.1) #模拟数据的传输延迟
- recv_size+=1024 #每次收 1024
- percent=recv_size/data_size #接收的比例
- progress(percent,width=70) #进度条的宽度 70
来源: http://www.bubuko.com/infodetail-2664105.html