1. 直接打印1

import time
#demo1
def process_bar(percent, start_str='', end_str='', total_length=0):
    bar = ''.join(["\033[31m%s\033[0m"%'   '] * int(percent * total_length)) + ''
    bar = '\r' + start_str + bar.ljust(total_length) + ' {:0>4.1f}%|'.format(percent*100) + end_str
    print(bar, end='', flush=True)
 
 
for i in range(101):
    time.sleep(0.1)
    end_str = '100%'
    process_bar(i/100, start_str='', end_str=end_str, total_length=15)
 
#demo2
# for i in range(0, 101, 2):
#   time.sleep(0.1)
#   num = i // 2
#   if i == 100:
#     process = "\r[%3s%%]: |%-50s|\n" % (i, '|' * num)
#   else:
#     process = "\r[%3s%%]: |%-50s|" % (i, '|' * num)
#   print(process, end='', flush=True)

2. 直接打印2

import sys, time

print("正在下载......")
for i in range(11):
   if i != 10:
       sys.stdout.write("==")
   else:
       sys.stdout.write("== " + str(i*10)+"%/100%")
   sys.stdout.flush()
   time.sleep(0.2)
print("\n" + "下载完成")
  • **sys.stdout.write()**方法跟print()方法的区别是 前者打印不换行，后者换行。
  • **sys.stdout.flush()**方法是立即刷新输出的内容

3.tqdm库

from time import sleep
from tqdm import tqdm
 
for i in tqdm(range(20)):
    sleep(0.5)

4.progressbar

# 安装
pip3 install progressbar2
import time
from progressbar import *
 
progress = ProgressBar()
for i in progress(range(1000)):
    time.sleep(0.01)