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"]
-        
-class Note():       # 便签、笔记
+
+class Note():
     def __init__(self):
         self.root = tkinter.Tk()
         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.root.resizable(width=True, height=False)  # True可以拉伸，False不能拉伸
+        self.bg_img = tkinter.PhotoImage(file="bg.png")
 
-    def show(self):     # 布置窗口界面
+    def show(self):
+        self.canvas = tkinter.Canvas(self.root, width=300,
+                      height=340, bg="lightblue")
+        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)
+        self.ent = tkinter.Entry(self.root, show=None,font=('宋体', 13), 
+                   bg="snow", width=25)
+        self.ent.place(x=10, y=308)
         # 按钮
-        self.but = tkinter.Button(self.root,text='添加',font=('宋体',12),
-                   bg="lightblue", width=5, command=self.get_info)
+        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)
+        # 展示所有的文字
+        self.y = 20
+        for info in alist:
+            self.canvas.create_text(40,self.y,text=info,font=("宋体", 11),
+                                    anchor=W, fill='#FF9900')
+            self.y += 30
 
     def get_info(self):
-        pass
+        info = self.ent.get()
+        if info != "":
+            self.ent.delete("0", END)
+            alist.append(info)
+            self.canvas.create_text(40,self.y,text=info,
+                        font=('宋体',11), anchor="w", fill='#FF9900')
+            self.y += 30
+
 
 app = Note()
 app.show()