save project

dhwh.py

-i == 3
 username = "python"
 userpasword = "123456"
 while True:
-    
\ No newline at end of file
+    name = input("请输入用户名:")
+    password = input("请输入密码:")
+    if name == username and password == userpasword:
+        print("登陆成功")
+        break
+    if name != username:
+        print("用户名不存在")
+        continue
+    if password != userpasword:
+        print("密码错误，请重新输入")
+print("欢迎来到贝尔编程!")                
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