save project

diy2.py

@@ -6,8 +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 !=userpassword
         print("用户名不存在,请重新输入")
         print("用户名不存在,请重新输入")
-    if password != userpassword:
+    else
         print("密码错误,请重新输入")         
         print("密码错误,请重新输入")         
 iprint("欢迎来到贝尔编程!")
 iprint("欢迎来到贝尔编程!")
\ No newline at end of file