1.import os,sys,string
2.import time
3.
4.def view_bar(num=1, sum=100, bar_word=":"):
5. rate = float(num) / float(sum)
6. rate_num = int(rate * 100)
7. print '\r%d%% :' %(rate_num),
8. for i in range(0, num):
9. os.write(1, bar_word)
10. sys.stdout.flush()
11.
12.if __name__ == '__main__':
13. for i in range(0, 100):
14. time.sleep(0.1)
15. view_bar(i, 100)