进度条

后端程序

 

import sys,time

for i in range(100):
    sys.stdout.write('\r%s%%'%(i+1))
    sys.stdout.flush()
    time.sleep(0.1)

imprt sys,time

for i in range(100):
    k = i + 1
    str = '>'*(i/2)
    sys.stdout.write('\r'+str)
    sys.stdout.flush()
    time.sleep(0.05)

import sys,time

for i in range(100):
    k = i + 1
    str = '>'*(i/2)+' '*((100-k)//2)
    sys.stdout.write('\r'+str+'[%s%%]'%(i+1))
    sys.stdout.flush()
    time.sleep(0.05)