save project

my_client.py

 import tkinter
 import tkinter
 from tkinter import *
 from tkinter import *
+from tkinter import messagebox as mess
 
 
 alist = ["星期六下午打篮球", "星期天下午和小美一起看电影",
 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"]
@@ -46,13 +47,15 @@ class Note():  # 便签、笔记
     def get_info(self):
     def get_info(self):
         info = self.ent.get()
         info = self.ent.get()
         self.ent.delete("0", END)
         self.ent.delete("0", END)
-        if info != "":
+        if info != "" and len(info)<25:
             alist.append(info)
             alist.append(info)
             self.select=tkinter.Radiobutton(self.canvas,image=self.box_img,value=self.val,variable=self.v,width=25,height=15,borderwidth=0,command=self.destroy_info)
             self.select=tkinter.Radiobutton(self.canvas,image=self.box_img,value=self.val,variable=self.v,width=25,height=15,borderwidth=0,command=self.destroy_info)
             self.canvas.create_text(40,self.y,text=info,font=("宋体",11),anchor=W, fill='#FF9900')
             self.canvas.create_text(40,self.y,text=info,font=("宋体",11),anchor=W, fill='#FF9900')
             self.select.place(x=-20,y=self.y-10)
             self.select.place(x=-20,y=self.y-10)
             self.val+=1
             self.val+=1
             self.y += 30
             self.y += 30
+        else:
+            mess.showerror('错误','没有添加事项或太长了(>25个字符)')
 
 
 
 
 app = Note()
 app = Note()