save project

diy2.py

+username = "11"
+userpassword = "120427"
+
+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!")
+        print("欢迎来到编程世界!")
+        break
+    if user != username:
+        print("用户名输入错误")
+    elif password != userpassword:    
+        print("密码错误")
\ No newline at end of file