极简交互日记的桌面版本

版本1

先解决主要矛盾：输入文本并保存（输入多行文本、输入中文、输入框大小等暂时不处理）

from tkinter import *
import tkinter as tk
class myapp(tk.Tk):
    def __init__(self):
        tk.Tk.__init__(self)
        self.entry=tk.Entry(self)
        self.button=tk.Button(self,text='save',command=self.on_button)
        self.button.pack()
        self.entry.pack()
    def on_button(self):
        mydiary=open('mydiary.txt','a')
        mydiary.write(self.entry.get()+'\n')
        mydiary.close()

app=myapp()
app.mainloop()

版本2

目标：输入多行文本

from tkinter import *
import tkinter as tk
class myapp(tk.Tk):
    def __init__(self):
        tk.Tk.__init__(self)
        self.text=tk.Text(self)
        self.button=tk.Button(self,text='save',command=self.on_button)
        self.button1=tk.Button(self,text=‘quit’,command=quit)
        self.button.pack()
        self.button1.pack()
        self.text.pack()
    def on_button(self):
        mydiary=open('mydiary.txt','a')
        mydiary.write(self.text.get(1.0,END)+'\n')
        mydiary.close()

app=myapp()
app.mainloop()

参考资料：

Tkinter Entry “get” function is returning nothing