save project

level3-lesson20-diy4.py

@@ -72,6 +72,11 @@ class Note():  # 便签、笔记
 # 读取用户信息
 with open("user.txt", "r", encoding="utf-8") as f:
     info = f.read()
+#++++++++++++++++++++++++++++++++++++++++++++++++++++
+    if info == "":
+        users = {} # 创建空字典
+    else:
+#++++++++++++++++++++++++++++++++++++++++++++++++++++
         users = json.loads(info)
 
 def login_to_reg():    # 登录界面转注册界面