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
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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()
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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。