python实现的记事本
# -*-coding:utf-8-*-
"""
1）页面布局
2）基本文本编辑功能，增删改查替
3）编码选择
4）大小写，url编码
5）新建
6）打开
7）保存/另存为
"""
# GUI界面编程
from tkinter import * # 控件基础包，导入这个包后，这个包下的所有函数可以直接调用
from tkinter import filedialog, messagebox
from import Combobox
from import quote
class MainWin():
# 顶层窗口
def __init__(self):
top_button_width = 10
button_relief = RAISED
# 创建顶层窗口
root = Tk()
self.src_filename = None
= StringVar()
('0')
# (str(win_width)+'x750') # 初始化窗口大小
('简易的文本记事器')
# 宽不可变, 高可变,默认为True
(width=False, height=False)
# 上部控件
Button(root, text='打开', relief=button_relief, width=top_button_width, command=self.open_button_event) \
.grid(row=0, column=0)
Button(root, text='新建', relief=button_relief, width=top_button_width, command=self.new_button_event) \
.grid(row=0, column=1)
Button(root, text='保存', relief=button_relief, width=top_button_width,
command=self.new_button_event).grid(row=0, column=2, sticky=E)
Button(root, text='另存为', relief=button_relief, width=top_button_width,
command=self.other_save_button_event).grid(row=0, column=3, sticky=W)
Button(root, text='关于作者', bg='SkyBlue', font='Arial', width=top_button_width, command=self.about_author).grid(
row=0, column=7, sticky=E)
# 隔开一行
Label(root, text='').grid(row=1)
# 中部控件
Button(root, text='查找', relief=button_relief, width=top_button_width, command=self.find_button_event) \
.grid(row=2, column=0, sticky=N)
self.find_text = Text(root, width=top_button_width, height=2)
self.find_text.grid(row=2, column=1)
Label(root, text='查找总数').grid(row=3, column=0, sticky=N)
self.count_label = Label(root, textvariable=)
self.count_label.grid(row=3, column=1)
Button(root, text='替换成', relief=button_relief, width=top_button_width, command=self.replace_button_event).grid(
row=4, column=0, sticky=N)
self.replace_text = Text(root, width=top_button_width, height=2)
self.replace_text.grid(row=4, column=1, sticky=N)
Button(root, text='大写', relief=button_relief, width=top_button_width, command=self.upper_button_event).grid(
row=5, column=0, sticky=N)
Button(root, text='小写', relief=button_relief, width=top_button_width, command=self.lower_button_event).grid(
row=5, column=1, sticky=N)
Button(root, text='编码选择', relief=button_relief, width=top_button_width,
command=self.code_change_button_event).grid(row=6, column=0, sticky=N)
self.code_chosen = Combobox(root, width=top_button_width - 2)
self.code_chosen['values'] = ('utf-8', 'gb2312', 'gbk')
self.code_chosen.grid(row=6, column=1)
Button(root, text='URL编码', relief=button_relief, width=top_button_width,
command=self.url_encode_button_event).grid(row=7, column=0, sticky=N)
= Text(root)
(row=2, column=2, columnspan=6, rowspan=15)
def open_button_event(self):
self.new_button_event()
# 获取文件名
self.src_filename = (filetypes=[('txt格式', 'txt')])
if self.src_filename:
# 获取数据
data = open(self.src_filename).read()
# 填充到text控件
(INSERT, data)
def new_button_event(self):
data = self.__get()
save_flag = False
if data and ('提示', '当前内容要进行保存吗？'):
if self.src_filename:
self.__sava_data(self.src_filename)
save_flag = True
else:
new_filename = (filetypes=[('txt格式', 'txt')])
if new_filename:
self.__sava_data(new_filename)
save_flag = True
if save_flag:
(1.0, END)
def save_button_event(self):
filename = self.src_filename if self.src_filename else (filetypes=[('txt格式', 'txt')])
if filename:
self.__sava_data(filename)
def other_save_button_event(self):
filename = (filetypes=[('txt格式', 'txt')])
if filename:
self.__sava_data(filename)
def find_button_event(self):
data = self.__get()
find_data = self.find_text.get(1.0, END).strip()
if find_data not in data:
('提示', '搜索的字符不存在')
else:
(str((find_data)))
def replace_button_event(self):
find_data = self.find_text.get(1.0, END).strip()
replace_data = self.replace_text.get(1.0, END).strip()
data = self.__get()
data = (find_data, replace_data)
self.__del_and_set(data)
def code_change_button_event(self):
try:
data = self.__get().encode(self.code_chosen.get().strip())
except:
('提示', '无法进行编码')
else:
self.__del_and_set(data)
def url_encode_button_event(self):
data = '\n' * 2 + '*' * 20 + '以下是URL编码' + '*' * 20 + '\n' + quote(self.__get(), 'utf-8')
(END)
(END, data)
def upper_button_event(self):
data = self.__get().upper()
self.__del_and_set(data)
def lower_button_event(self):
data = self.__get().lower()
self.__del_and_set(data)
def about_author(self):
('关于作者', '作者：MADAO程序猿 \nQQ：1506795308')
def __sava_data(self, filename):
with open(filename, 'w') as f:
(self.__get())
('提示', '保存成功')
def __get(self):
# 这里注意一定要有strip
return (1.0, END).strip()
def __del_and_set(self, data):
(1.0, END)
(INSERT, data)
main = MainWin()
mainloop() # 运行这个GUI应用