Π

import time

pi = 0
n = 100
print("第一种进度条：")
t = 60
print("**************带时间的进度条**************")
start = time.perf_counter()
for i in range(t + 1):
finsh = "▓" * i
need_do = "-" * (t - i)
progress = (i / t) * 100
dur = time.perf_counter() - start
print("\r{:^3.0f}%[{}->{}]{:.2f}s".format(progress, finsh, need_do, dur), end="")
if i<100:
pi += 1 / pow(16, i) * (4 / (8 * i+ 1) - 2 / (8 * i + 4) - 1 / (8 * i + 5) - 1 / (8 * i + 6))
time.sleep(0.05)
print("\n第二种进度条:")
from tqdm import tqdm
for i in tqdm(range(1, 60)):
"""
if i<100:
pi += 1 / pow(16, i) * (4 / (8 * i+ 1) - 2 / (8 * i + 4) - 1 / (8 * i + 5) - 1 / (8 * i + 6))
"""
time.sleep(0.05)
print("\n圆周率PI是:{}".format(pi))
print("计算圆周率PI的具体公式是：pi += 1/pow(16, k) * (4 / (8 * k + 1) - 2 /(8 * k + 4) - 1/(8 * k + 5) - 1 /(8 * k + 6))")