[Python] text progress bar

1.0 Code:

Import time # introduction time libraries 
Scale = 10 # text Scrubber width 
Print ( " ------ execution start ------ " )
 for I in Range (+ Scale. 1): # simulate a progress 
    A = ' * ' * I # number string is copied, "*" indicates the percentage of information expressed by 
    B = ' . ' * (scale- I)
    C = (I / Scale) * 100 # outputs a corresponding percentage progress bar 
    Print ( " {:} ^ 3.0f% [{} -> {}] " .format (C, A, B))
    the time.sleep ( 0.1) # interval same time executives 
Print ( " ------ End ------ execution " )

result:

 

2.0 Code (single dynamic refresh):

 

 Code (IDLE may not run, I was running in the Visual Studio 2019):

Import time # introduction time libraries 
for I in Range (101 ):
     Print ( " \ R & lt {:. 3}% " .format (I), End = "" ) # "\ R & lt" the cursor to withdraw the current row of the line , "end =" function so that the output does not print wrap " 
    the time.sleep (0.1)

Results: Output from 0% to 100%

 

 Complete results:

Code:

import time#引入time库
scale=50#文本进度条宽度
print("执行开始".center(scale//2,"-"))
start=time.perf_counter()#计时开始
for i in range(scale+1):#模拟一个进度
    a='*'*i#字符串被复制的次数，"*"表示百分比所表达的信息
    b='.'*(scale-i)
    c=(i/scale)*100#输出对应进度条的百分比
    dur=time.perf_counter()-start#计时结束，并计算所用时间
    print("\r{:^3.0f}%[{}->{}]{:.2f}s".format(c,a,b,dur),end="")#dur用来记录打印文本进度条所消耗的时间
    time.sleep(0.1)#间隔相同时间执行程序
print("\n"+"执行结束".center(scale//2,"-"))

结果（Visual Studio 2019）：