# 方法1：
import time
from tqdm import tqdm  

for i in tqdm(range(100)):  
    time.sleep(0.01)

方法1+：
import time
from tqdm import trange

for i in trange(100):
    time.sleep(0.01) 

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import time
from tqdm import tqdm

pbar = tqdm(["a", "b", "c", "d"])
for char in pbar:
    # 设置描述
    pbar.set_description("Processing %s" % char)
    time.sleep(0.2)

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Processing d:  75%|███████▌  | 3/4 [00:00<00:00,  4.99it/s]
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Processing d: 100%|██████████| 4/4 [00:00<00:00,  4.99it/s]

import time
from tqdm import tqdm

# 一共200个，每次更新10，一共更新20次
with tqdm(total=200) as pbar:
  pbar.set_description("Processing")
  for i in range(20):
    pbar.update(10)
    time.sleep(0.1)

#方法2：
pbar = tqdm(total=200)
for i in range(20):
    pbar.update(10)
    time.sleep(0.1)
pbar.close()

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