Python模拟文本进度条

代码：

#TextProBarV3.py
import time as t
scale = 50
print("执行开始".center(scale//2,"-"))
start = t.perf_counter()
for i in range(scale+1):
    a = '*' * i
    b = '.' * (scale - i)
    c= (i/scale) * 100
    dur = t.perf_counter() - start
    print("\r{:^3.0f}%[{}->{}]{:.2f}s".format(c,a,b,dur),end="")
    t.sleep(0.1)
print("\n"+"执行结束".center(scale//2,"-"))

效果：

-----------执行开始----------
100%[**************************************************->]5.03s
-----------执行结束----------

Process finished with exit code 0