auto save

client.py

 import tkinter
+from tkinter import *
 
 alist = ["星期六下午打篮球", "星期天下午和小美一起看电影",
-        "12月18日给蒂法过生日","12.24送妈妈圣诞礼物"]
+         "12月18日给蒂法过生日", "12.24送妈妈圣诞礼物"]
+
 
 class Note():       # 便签、笔记
     def __init__(self):
@@ -9,19 +11,41 @@ class Note():       # 便签、笔记
         self.root.geometry('300x340+1000+200')
         self.root.title("我的便签-待办事项")
         self.root.resizable(width=False, height=False)
+        self.bg_img = tkinter.PhotoImage(file='bg.png')
 
     def show(self):     # 布置窗口界面
+        # 画布
+        self.canvas = tkinter.Canvas(
+            self.root, width=300, height=340, bg='lightgreen')
+        self.canvas.create_image(0, 0, image=self.bg_img, anchor=NW)
+        self.canvas.place(x=0, y=0)
+
         # 输入框
         self.ent = tkinter.Entry(self.root, show=None,
                                  font=('宋体', 13), bg="snow", width=25)
         self.ent.place(x=10, y=310)
         # 按钮
-        self.but = tkinter.Button(self.root,text='添加',font=('宋体',12),
+        self.but = tkinter.Button(self.root, text='添加', font=('宋体', 12),
                                   bg="lightblue", width=5, command=self.get_info)
         self.but.place(x=240, y=305)
 
+        # 展示所有文字
+        self.y = 20
+        for info in alist:
+            self.canvas.create_text(
+                40, self.y, text=info, font=12, anchor=W, fill='black')
+            self.y += 30
+
     def get_info(self):
-        pass
+        info = self.ent.get()
+        # print(info)
+        if info != '':
+            alist.append(info)
+            self.ent.delete('0', END)
+            self.canvas.create_text(
+                40, self.y, text=info, font=12, anchor=W, fill='black')
+            self.y += 30
+
 
 app = Note()
 app.show()