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 == userpassword:
@@ -11,4 +13,8 @@ while True:
             continue
         else:
             print("你够了！")
+            i=i-1
+    else:
+        print("账户已锁！")
+        exit()
 print("欢迎来到贝尔编程!")
\ No newline at end of file