Python GUI编程完整示例

本文实例讲述了PythonGUI编程。分享给大家供大家参考，具体如下：importosfromtimeimportsleepfromtk

本文实例讲述了Python GUI编程。分享给大家供大家参考，具体如下：

import os
from time import sleep
from tkinter import *
from tkinter.messagebox import showinfo
class DirList(object):
 def __init__(self, initdir=None):
 self.top = Tk()
 self.label = Label(master=self.top, text='Directory Lister V1.0')
 self.label.pack()
 self.cwd = StringVar(master=self.top)
 self.dirl = Label(self.top, fg='blue', font=('Helvetica', 14, 'bold'))
 self.dirl.pack()
 self.dirfm = Frame(master=self.top)
 self.dirsb = Scrollbar(master=self.dirfm)
 self.dirsb.pack(side=RIGHT,fill=Y)　　　　# fill=Y，垂直填充空间排列
 self.dirs = Listbox(master=self.dirfm, height=15, width=50, yscrollcommand=self.dirsb.set)
 self.dirs.bind('<Double-1>', func=self.setDirAndGo) 　　# <Double-1>，双击显示路径列表
 self.dirsb.config(command=self.dirs.yview)
 self.dirs.pack(side=LEFT, fill=BOTH)
 self.dirfm.pack()
 self.dirn = Entry(master=self.top, width=50, textvariable=self.cwd)
 self.dirn.bind('<Return>', func=self.doLS)
 self.dirn.pack()
 self.bfm = Frame(master=self.top)
 self.cleer = Button(master=self.bfm, text='清除', command=self.clrDir, activeforeground='white',
 activebackground='blue')
 self.ls = Button(master=self.bfm, text='显示列表', command=self.doLS, activeforeground='white',
 activebackground='green')
 self.quit = Button(master=self.bfm, text='退出', command=self.top.quit, activeforeground='white',
 activebackground='red')
 self.cleer.pack(side=LEFT)
 self.ls.pack(side=LEFT)
 self.quit.pack(side=LEFT)
 self.bfm.pack()
 if initdir:
 self.cwd.set(os.curdir)
 self.doLS()
 def setDirAndGo(self, ev=None):
 self.last = self.cwd.get()
 self.dirs.config(selectbackground='red')
 chek = self.dirs.get(self.dirs.curselection())
 if not chek:
 chek = os.curdir
 self.cwd.set(chek)
 self.doLS()
 def doLS(self, ev=None):
 error = ''
 tdir = self.cwd.get()
 if not tdir:
 tdir = os.curdir
 if not os.path.exists(tdir):
 error = tdir + '：未找到文件，请检查路径！'
 elif not os.path.isdir(tdir):
 error = tdir + '：不是一个路径！'
 if error:
 # self.cwd.set(error)
 showinfo(title='提示',message=error)
 self.top.update()
 # sleep(2)
 if not (hasattr(self, 'last') and self.last):
 self.last = os.curdir
 self.cwd.set(self.last)
 self.dirs.config(selectbackground='LightSkyBlue')
 self.top.update()
 return
 if not os.path.isdir(tdir):
 self.cwd.set('')
 else:
 self.cwd.set('获取目录内容中...')
 self.top.update()
 dirlist = os.listdir(tdir)
 dirlist.sort()
 os.chdir(tdir)
 self.dirl.config(text=os.getcwd())
 self.dirs.delete(0, END)
 self.dirs.insert(END, os.curdir)
 self.dirs.insert(END, os.pardir)
 for eachfile in dirlist:
 self.dirs.insert(END, eachfile)
 self.cwd.set(os.curdir)
 self.dirs.config(selectbackground='LightSkyBlue')
 def clrDir(self, ev=None):
 self.cwd.set('')
if __name__ == '__main__':
 dir = DirList(os.curdir)
 mainloop()

效果如下：

Python GUI编程