python仿微软记事本

# -*- coding=utf-8 -*-

from tkinter import filedialog

import tkinter as tk

import tkinter.scrolledtext as tkst

from tkinter import messagebox

import fileinput

from tkinter import *

import os

import time

t1 = []

root = None

def die():

    root.destroy()

def about():

    messagebox.showinfo(title = "当前版本为1.0,欢迎使用",message = "**作者:韩东\n**状态:继续努力ing")

class editor:

    def __init__(self,rt):

        if rt == None:

            self.t = tk.Tk()

        else:

            self.t = tk.Toplevel(rt)

        self.t.title("文本编辑器%d" % (len(t1)+1))

        self.bar = tk.Menu(rt)

        self.filem = tk.Menu(self.bar)

        self.filem.add_separator()

        self.filem.add_command(label = "新建",command = self.neweditor)

        self.filem.add_separator()

        self.filem.add_command(label = "打开",command = self.openfile)

        self.filem.add_separator()

        self.filem.add_command(label = "保存",command = self.savefile)

        self.filem.add_separator()

        self.filem.add_command(label = "关闭",command = self.close)

        self.filem.add_separator()

        self.filem.add_command(label = "退出",command = die)

        self.editm = tk.Menu(self.bar)

        self.editm.add_separator()

        self.editm.add_command(label = "复制",command = self.copy)

        self.editm.add_separator()

        self.editm.add_command(label = "黏贴",command = self.paste)

        self.editm.add_separator()

        self.editm.add_command(label = "剪切",command = self.cut)

        self.editm.add_separator()

        self.editm.add_command(label = "删除",command = self.delete_text)

        self.editm.add_separator()

        self.editm.add_command(label = "查找",command = self.find_char)

        self.editm.add_separator()

        self.editm.add_command(label = "全选",command = self.select_char_all)

        self.helpm = tk.Menu(self.bar)

        self.helpm.add_command(label = "关于",command = about)

        self.bar.add_cascade(label = "文件",menu = self.filem)

        self.bar.add_cascade(label = "编辑",menu = self.editm)

        self.bar.add_cascade(label = "帮助",menu = self.helpm)

        self.t.config(menu = self.bar)

        self.f = tk.Frame(self.t,width = 512)

        self.f.pack(expand =1)

        self.st = tkst.ScrolledText(self.t)

        self.st.pack(expand = 1)

    def close(self):

        self.t.destroy()

    def openfile(self):

        oname = filedialog.askopenfilename(filetypes = [("打开文件","*.txt")])

        if oname:

            for line in fileinput.input(oname):

                self.st.insert("1.0",line)

            self.t.title(oname)

    def savefile(self):

        sname = filedialog.asksaveasfilename(title = "保存好你的宝宝哟",filetypes = [("保存文件","*.txt")])

        if sname:

            ofp = open(sname,"a")

            ofp.write(self.st.get(1.0,tk.END))

            ofp.flush()

            ofp.close()

            self.t.title(sname)

    def neweditor(self):

        global root

        t1.append(editor(root))

    def copy(self):

        text = self.st.get(tk.SEL_FIRST,tk.SEL_LAST)

        self.st.clipboard_clear()

        self.st.clipboard_append(text)

    def paste(self):

        try:

            text = self.st.selection_get(selection = "CLIPBOARD")

            self.st.insert(tk.INSERT,text)

        except tk.TclError:

            pass

    def cut(self):

        text = self.st.get(tk.SEL_FIRST,tk.SEL_LAST)

        self.st.delete(tk.SEL_FIRST,tk.SEL_LAST)

        self.st.clipboard_clear()

        self.st.clipboard_append(text)

    def delete_text(self):

        self.st.delete(tk.SEL_FIRST,tk.SEL_LAST)

    def find_char(self):

        target = simpledialog.askstring("简易文本编辑器","寻找字符串")

        if target:

            end = self.st.index(tk.END)

            endindex = end.split(".")

            end_line = int(endindex[0])

            end_column = int(endindex[1])

            pos_line =1

            pos_column=0

            length =len(target)

            while pos_line <= end_line :

                if pos_line == end_line and pos_column +length > end_column:

                    break

                elif pos_line < end_line and pos_column + length >100:

                   pos_line = pos_line + 1

                   pos_column = 100 - (pos_column + length)

                   if pos_column > end_column:

                        break

                else:

                    pos = str(pos_line)+"."+str(pos_column)

                    where = self.st.search(target,pos,tk.END)

                    if  where:

                        print(where)

                        where1 =where.split(".")

                        sele_end_col = str(int(where1[1])+length)

                        sele = where1[0] + "."+ sele_end_col

                        self.st.tag_add(tk.SEL,where,sele)

                        self.st.mark_set(tk.INSERT,sele)

                        self.st.see(tk.INSERT)

                        #self.st.focus()

                        again = messagebox.askokcancel(title = "继续查询么")

                        if again:

                            pos_line = int(where1[0])

                            pos_column = int(sele_end_col)

                        else:

                            aa=messagebox.showinfo(title = "你终于还是放弃了我",message = "你放弃了我--!")

                            if aa:

                                sys.exit()

    def select_char_all(self):

        self.st.tag_add(tk.SEL,1.0,tk.END)

        self.st.see(tk.INSERT)

        self.st.focus()

if __name__ == "__main__":

    root = None

    t1.append(editor(root))

    root = t1[0].t

    root.mainloop()