Python代码结构解析

#-*- coding:utf-8 -*-
#
import tkinter
import tkinter.messagebox
import os,os.path
import threading

rubbishExt = ['.tmp','.bak','.old','.wbk','.xlk','._mp','.log','.gid','.chk','.syd','.$$$','.@@@','.~*']


class Window:
    # def GetDrives(self):
    #     drives = []
    #     for i in range(65, 91):
    #         vol = chr(i) + ':/'
    #         if os.path.isdir(vol):
    #             drives.append(vol)
    #     return tuple(drives)
    def ScanRubbish(self):
        global rubbishExt
        total = 0
        filesize = 0
        for root,dirs,files, in os.walk('c:/'):
                try :
                    for fil in files:
                        filesplit = os.path.splitext(fil)
                        if filesplit[1] == '':
                            continue
                        try:
                            if rubbishExt.index(filesplit[1])>=0:
                                fname = os.path.join(os.path.abspath(root),fil)
                                filesize += os.path.getsize(fname)
                                if total % 15 == 0:
                                    self.flist.delete(0.0,tkinter.END)
                                self.flist.insert(tkinter.END,fname+'\n')
                                l = len(fname)
                                if l>50:
                                    self.progress['text']=fname[:25]+'...'+fname[1-25:l]
                                else:
                                    self.progress['text'] =fname
                                total+=1
                        except ValueError:
                            pass
                except Exception as e:
                    print(e)
                    pass
        self.progress['text'] = "找到%s个垃圾文件，共占用%.2f M磁盘空间"%(total,filesize/1024/1024)

    def DelteRubbish(self):
        global rubbishExt
        total = 0
        filesize = 0
        for root,dirs,files in os.walk('c:/'):
            try:
                for fil in files:
                    filesplit = os.path.splitext(fil)
                    if filesplit[1]=='':
                        continue
                    try:
                        if rubbishExt.index(filesplit[1])>=0:
                            fname = os.path.join(os.path.abspath(root),fil)
                            filesize+=os.path.getsize(fname)
                            try:
                                os.remove(fname)
                                l = len(fname)
                                if l >50:
                                    fname = fname[:25]+'...'+fname[1-25:l]
                                    if total %15 ==0:
                                        self.flist.delete(0.0,tkinter.END)
                                        self.flist.insert(tkinter.END,'Deleted'+fname+'\n')
                                        self.progress['text']=fname
                                        total +=1
                            except:
                                pass
                    except ValueError:
                        pass
            except Exception as e:
                print(e)
                pass


    def __init__(self):
        self.root = tkinter.Tk()
        #创建菜单
        menu = tkinter.Menu(self.root)

        #创建System子菜单
        submenu = tkinter.Menu(menu,tearoff=0)
        submenu.add_command(label = 'About..',command = self.MenuAbout)
        submenu.add_separator()
        submenu.add_command(label = 'Exit',command = self.MenuExit)
        menu.add_cascade(label = 'System',menu = submenu)

        #创建clean子菜单
        submenu = tkinter.Menu(menu,tearoff=0)
        submenu.add_command(label = 'scan',command = self.MenuScanRubbish)
        submenu.add_command(label = 'Del',command = self.MenuDelRubbish)
        menu.add_cascade(label = 'Clean',menu = submenu)

        #创建Search子菜单
        submenu =tkinter.Menu(menu,tearoff=0)
        submenu.add_command(label = 'SearchBigData',command = self.MenuScanBigFile)
        submenu.add_separator()
        submenu.add_command(label = 'SearchName',command = self.MenuSearchFile)
        menu.add_cascade(label = 'Search',menu = submenu)

        self.root.config(menu = menu)

        self.progress = tkinter.Label(self.root,anchor = tkinter.W,
                                      text = '状态',bitmap = 'hourglass',compound='left')
        self.progress.place(x=10,y=370,width=480,height=15)

        self.flist = tkinter.Text(self.root)
        self.flist.place(x=10,y=10,width = 480,height = 350)

        self.vscroll = tkinter.Scrollbar(self.root)
        self.vscroll.pack(side = 'right',fill = 'y')
        self.flist['yscrollcommand'] = self.vscroll.set
        self.vscroll['command']=self.flist.yview

    def MainLoop(self):
        self.root.title("Findfat")
        self.root.minsize(500,400)
        self.root.maxsize(500,400)
        self.root.mainloop()

    def MenuAbout(self):
        tkinter.messagebox.showinfo("Findfat",
                                    "这是python编写的window优化程序\n欢迎提出意见")
    def MenuExit(self):
        self.root.quit()

    def MenuScanRubbish(self):
        result = tkinter.messagebox.askquestion("Findfat",
                                                "扫描垃圾文件时间较长，是否继续？")
        if result =='no':
            return
        tkinter.messagebox.showinfo("Findfat","马上删除")
        #self.ScanRubbish()
        t = threading.Thread(target=self.ScanRubbish)
        t.start()
    def MenuDelRubbish(self):
        result = tkinter.messagebox.askquestion("Findfat","删除")
        if result == 'no':
            return
        tkinter.messagebox.showinfo("Findfat","马上删除")
        t= threading.Thread(target=self.DelteRubbish)
        t.start()
    def MenuScanBigFile(self):
        result = tkinter.messagebox.askquestion("Findfat","搜索时间")
        if result == 'no':
            return
        tkinter.messagebox.showinfo("Findfat","马上搜索")
    def MenuSearchFile(self):
        result = tkinter.messagebox.askquestion("Finafat","文件名时间")
        if result == 'no':
            return
        tkinter.messagebox.showinfo("Findfat","马上搜索文件名")

if __name__ == '__main__':
    window =Window()
    window.MainLoop()

#为单行注释

首先插入所需模块用import

tkinter  GUI前段模块

threading  多线程模块

os  系统文件操作模块

创建class类

def定义函数

if __name__ =="__main__":运行函数

try：--except：为调试自动抛出异常