save project

diy2.py

@@ -6,7 +6,7 @@ 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
-    elif name!=username
+    if name!=username
         print("用户名输入错误")
         print("用户名输入错误")
     else password!=userpassword
     else password!=userpassword
         print("密码输入错误")
         print("密码输入错误")