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Python Is an easy to learn 、 Powerful programming language . It provides an efficient high-level data structure , It's also a simple and effective way of object-oriented programming .Python Elegant grammar and dynamic typing and the essence of interpretive language , Make it an ideal language for scripting and rapid application development on most platforms . Now let's introduce python Realize the text progress bar through string related knowledge .
example ： Programming , Analog output simple non refresh text progress bar . It is required to divide the whole task into 100 A unit of , Every execution 10% Output a progress bar , Each line of output contains a percentage of progress 、 Represents the completed part （**） And unfinished parts （..） Two characters of , And a small arrow that follows the degree of completion , The style is as follows ：
%10 [**->………………]
The code is as follows , Each line is explained in the notes .
import time # Import time modular
scale = 10 # Variable scale Used to indicate the accuracy of the output progress bar
print("---------- Execution start ----------") # Output
for i in range(scale + 1): # Loop variable from 0 To 10
a = "**" * i # use “*” Indicates the completed part
b = ".." * (scale - i) # use “.” Indicates the unfinished part
c = (i / scale) * 100 # Calculate the completion percentage and assign it to c
print("%{:^3.0f}[{}->{}]".format(c, a, b)) # Format output
time.sleep(0.1) # Pause 0.1 second
print("---------- end of execution ----------") # Output
adopt pycharm The results are as follows .
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That's about Python Realize the text progress bar through string related knowledge ., You can refer to it , Relevant knowledge will be continuously updated later , Make progress together .
