使用python3.5仿微软记事本notepad

本文实例为大家分享了python3.5仿微软记事本的具体代码，供大家参考，具体内容如下

    from tkinter import filedialog
    import tkinter as tk
    import tkinter.scrolledtext as tkst
    from tkinter import messagebox
    import fileinput
    from tkinter import *
    from os 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()

以上就是本文的全部内容，希望对大家学习python程序设计有所帮助。