为什么我不能使用OBJECT_ID（）函数找到外键？

I have a strange issue in MS SQL Server 2012. I'm trying to check if a foreign key already exist in an upgrade script. I've used the system OBJECT_ID() function in the past to find tables, views and procedures, but when I try to use it to find a foreign key it does not work.I have a strange issue in MS SQL Server 2012. I