Python的进度条的制作

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

import sysclass 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)

# -*- coding: UTF-8 -*-import sys, timeclass 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 = 0if __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()

from Tkinter import *def resize(ev=None):
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()