Python学习：显示进度条

import time
import sys

def progress_bar(current, total, bar_length=50):
    percent = current / total
    arrow = '=' * int(percent * bar_length)
    spaces = ' ' * (bar_length - len(arrow))
    sys.stdout.write(f"\r[{arrow}{spaces}] {int(percent * 100)}%")
    sys.stdout.flush()

# 测试进度条
for i in range(101):
    progress_bar(i, 100)
    time.sleep(0.1)
print("\n完成！")

from tqdm import tqdm
import time

for i in tqdm(range(200)):
    time.sleep(0.1)
print("完成！")

from tqdm import tqdm
import time

for i in tqdm(
    range(100),
    desc="处理进度",    # 自定义描述
    ncols=70,           # 进度条宽度
    bar_format="{l_bar}{bar}| {n_fmt}/{total_fmt} [{elapsed}<{remaining}]",
    total=100,          # 总数
    unit="it",          # 单位
    leave=True,         # 结束后保留进度条
    disable=False,      # 是否禁用进度条
):
    time.sleep(0.1)
print("完成！")