save project

diy2.py

-i=3#
-if:1==0
-   print(sb)
-   exit()
-else:
+i=3
 username = "python"
 userpassword = "123456"
 while True:
     name = input("请输入用户名:")
     password = input("请输入密码:")
-    i-=1#
+    i-=1
+    if i==0:
+        print("sb")
+        exit()
+    else:
         if name == username and password == userpassword:
-        print("登录成功"）
+            print("登录成功")
             break
         elif name != username:
-        print("用户名失败"）
+            print("用户名失败")
         elif password != userpassword:
-        print("密码失败"）
+            print("密码失败")
 print("欢迎来到贝尔编程!")
\ No newline at end of file