Python进度条的制作代码实例

这篇文章主要介绍了Python进度条的制作代码实例,文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下

import sys,time
#导入模块
for i in range(50):
#进度条的长度
 sys.stdout.write("#")
#进度条的内容，这里要注意了，pycharm有可能不显示write的方法
 sys.stdout.flush()
#刷新缓存
 time.sleep(0.5)
#间隔时间，和shell的sleep差不多吧

或者

import sys

class progressbar(object):

def __init__(self, finalcount, block_char='.'):
   self.finalcount = finalcount
   self.blockcount = 0
   self.block = block_char
   self.f = sys.stdout
   if not self.finalcount:
     return
   self.f.write('\n------------------ ％ Progress -------------------1\n')
   self.f.write(' 1 2 3 4 5 6 7 8 9 0\n')
   self.f.write('----0----0----0----0----0----0----0----0----0----0\n')

def progress(self, count):
   count = min(count, self.finalcount)
   if self.finalcount:
     percentcomplete = int(round(100.0 * count / self.finalcount))
     if percentcomplete < 1:
       percentcomplete = 1
   else:
     percentcomplete = 100
   blockcount = int(percentcomplete // 2)
   if blockcount <= self.blockcount:
     return
   for i in range(self.blockcount, blockcount):
     self.f.write(self.block)
   self.f.flush()
   self.blockcount = blockcount
   if percentcomplete == 100:
     self.f.write("\n")

if __name__ == "__main__":
 from time import sleep
 pb = progressbar(8, "*")
 for count in range(1, 9):
   pb.progress(count)
   sleep(0.2)
 pb = progressbar(100)
 pb.progress(20)
 sleep(0.3)
 pb.progress(47)
 sleep(0.3)
 pb.progress(90)
 sleep(0.3)
 pb.progress(100)
 print "testing 1:"
 pb = progressbar(1)
 pb.progress(1)

或者

# -*- coding: UTF-8 -*-
import sys, time
class ShowProcess():
 """
 显示处理进度的类
 调用该类相关函数即可实现处理进度的显示
 """
 i = 0 # 当前的处理进度
 max_steps = 0 # 总共需要处理的次数
 max_arrow = 50 #进度条的长度

# 初始化函数，需要知道总共的处理次数
 def __init__(self, max_steps):
   self.max_steps = max_steps
   self.i = 0

# 显示函数，根据当前的处理进度i显示进度
 # 效果为[>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>]100.00％
 def show_process(self, i=None):
   if i is not None:
     self.i = i
   else：
     self.i += 1
   num_arrow = int(self.i * self.max_arrow / self.max_steps) #计算显示多少个'>'
   num_line = self.max_arrow - num_arrow #计算显示多少个'-'
   percent = self.i * 100.0 / self.max_steps #计算完成进度，格式为xx.xx％
   process_bar = '[' + '>' * num_arrow + '-' * num_line + ']'\
          + '％.2f' ％ percent + '％' + '\r' #带输出的字符串，'\r'表示不换行回到最左边
   sys.stdout.write(process_bar) #这两句打印字符到终端
   sys.stdout.flush()
 def close(self, words='done'):
   print ''
   print words
   self.i = 0
if __name__=='__main__':
 max_steps = 100
 process_bar = ShowProcess(max_steps)
 for i in range(max_steps + 1):
   process_bar.show_process()
   time.sleep(0.05)
 process_bar.close()

或者

from Tkinter import *
def resize(ev=one):
 label.config(font='Helvetica -％d bold' ％ scale.get())

top = Tk()
top.geometry()

label = Label(top, text = 'hello world!', font = 'Helvetica -12 bold')
label.pack(fill=Y,expand=1)

scale = Scale(top, from_=10, to=40, orient=HORIZONTAL, command=resize)
scale.set(12)
scale.pack(fill=X, expand=1)
quit = Button(top, text="QUIT", command=top.quit, activeforeground='white', activebackground='red')
quit.pack()

mainloop()

来源：https://www.cnblogs.com/navysummer/p/9131738.html