save project

diy2.py

@@ -6,9 +6,8 @@ while True:
     if name == username and password == userpassword:
     if name == username and password == userpassword:
         print("登录成功!")
         print("登录成功!")
         break
         break
-    if name != username: 
+    elif name != username: 
         print("不存在，请重新输入！！！！！！！")
         print("不存在，请重新输入！！！！！！！")
-        continue
-    if  password != userpassword:
+    else:
         print("有误，请重新输入！！！！")
         print("有误，请重新输入！！！！")
 print("欢迎来到贝尔编程!")
 print("欢迎来到贝尔编程!")
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