save project

diy2.py

+username = "python"
+userpassword = "114514 "
+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("请重新输入用户名")
+    if password != username:
+        print("请重新输入密码")  
+print("登录成功")
+
+