auto save

A.py

+import tkinter
+
+root=tkinter.Tk()
+root.geometry('300x350+500+300')
+canv=tkinter.Canvas(root,width=240,height=300,bg='lightblue')
+canvas=tkinter.Canvas(canv,width=100,height=100,bg='green')
+canv.place(x=30,y=20)
+canvas.place(x=0,y=0)
+
+root.mainloop()
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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
+    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.bg_img=tkinter.PhotoImage(file='bg.png')
+    def show(self):     # 布置窗口界面
+        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)
+        # 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.place(x=240, y=305)
+
+    def get_info(self):
+        pass
+
+app = Note()
+app.show()
+app.root.mainloop()
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