（数据科学学习手札53）Python中tqdm模块的用法

from tqdm import tqdm
import time

text = ""
for char in tqdm(["a", "b", "c", "d"]):
    time.sleep(0.25)
    text = text + char
    
print(text)

for it in tqdm(range(10)):
    time.sleep(0.5)

from tqdm import trange

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

'''method 1'''
with tqdm(total=100) as pbar:
    for i in range(10):
        time.sleep(0.1)
        pbar.update(10)

'''method 2'''
pbar = tqdm(total=100)
for i in range(10):
    time.sleep(0.1)
    pbar.update(10)
pbar.close()

from tqdm import tqdm_notebook
import time

for i in tqdm_notebook(range(100),desc='demo：'):
    time.sleep(0.01)