auto save

client.py

 import tkinter
-
-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"]
+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
     def __init__(self):
@@ -8,11 +9,20 @@ 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)  
-        tkinter.PhotoImage(file = 'bg')
-        tkinter.Canvas(300,400)
-        tkinter.create_image()
-
+        #载入图片 tkinter.PhotoImage(file = '图片的名字')
+        self.bg = tkinter.PhotoImage(file = 'bg.png')
     def show(self):     # 布置窗口界面
+        #创建画布tkinter.Canvas(窗口,画布的宽度，画布的高度)
+        self.canvas = tkinter.Canvas(self.root,width = 300,height = 340)
+        #将背景图片显示到画布上   画布对象.create_image(从什么坐标开始显示,要显示的图片，对齐方式)
+        self.canvas.create_image(0,0,image = self.bg,anchor = NW)
+        #将画布布局到窗口上
+        self.canvas.place(x = 0,y = 0)
+        
+        self.y = 20
+        for i in alist:
+            self.canvas.create_text(40,self.y,text = i,font = ('楷体',13),anchor = NW,fill = '#00008B')
+            self.y += 25
         # 输入框
         self.ent = tkinter.Entry(self.root, show=None, 
                    font=('宋体', 13), bg="snow", width=25)
@@ -23,9 +33,13 @@ class Note():       # 便签、笔记
         self.but.place(x=240, y=305)
 
     def get_info(self):
-        pass
+        info = self.ent.get()
+        if info != '':
+            alist.append(info)
+            self.canvas.create_text(40,self.y,text = info,font = ('楷体',11),anchor = 'w',fill = '#00008B')
+            self.y += 25
+            self.ent.delete('0',END)
 
 app = Note()
 app.show()
-app.root.mainloop()
-#2021-05-23 19:25
+app.root.mainloop()