python进度条

import time

from math import sqrt

 

 

PW = 521025

 

def is_prime(n):

    for i in range(3, int(sqrt(n))+2, 2):

        if n % i == 0:

            return False

    return True

 

#进度条

class ProgressBar:

    def __init__(self, total=0, width=50):

        self.total = total

        self.width = width

 

    def show(self, count, done='#', wait='-'):

        proc = self.width * count // self.total

        ok, undo = done * proc, wait * (self.width-proc)

        #print(f'\rRunning... [{ok}{undo}] {count}/{self.total}'.format(ok,undo,count,self.total), end='')

        print("\rRunning... [{0}{1}] {2}/{3}".format(ok,undo,count,self.total), end='')

 

 

def main(total=PW):

    n = 3

    bar = ProgressBar(total)

    for p in range(2, total):

        while True:

            n += 2

            if is_prime(n):

                bar.show(p+1)

                break

 

 

if __name__ == '__main__':

    main()