save project

diy2.py

+i=3
+username = "python"
+userpassword = "123456"
+while True:
+     if i>0:
+             name = input("请输入用户名:")
+             password = input("请输入密码:")
+        if name == username and password == pw:
+            print("登陆成功")
+            break
+        else:
+            if name != username:
+                print("用户名不存在，请重新输入")
+            if password != password:
+                print("密码输入错误，请重新输入")
+            i-=1
+        print("兄弟，还有+str(i)+次机会")
+        else:
+            print("兄弟，不行呀，来Los Angele Lakers办理程序吧")
+        exit()
+
+
+    print("欢迎来到贝尔编程!")
\ No newline at end of file