save project

diy2.py

@@ -3,13 +3,12 @@ userpassword = "123456"
 while True:
     name = input("请输入用户名:")
     password = input("请输入密码:")
-    if name == username and password == userpassword:
-        print("登录成功!")
-        break
     if name == username:
-        print("用户名不存在!")
-    if password == userpassword:
-        print("密码错误!")
-        continue
-    print("用户名和密码错误!请重新输入")
+         if password == userpassword:
+          print("登录成功!")
+          break
+         else:
+          print("密码错误!")
+    else:    
+       print("用户名和密码错误!请重新输入")
 print("欢迎到贝尔编程!")
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