第一次用SQL Server Management Studio啟動之后第一步就是要建立連接

但是不知道Server Name要填什么，看了網上的教程說是要找到下面這個注冊表中對應的實例名稱填上去，或者前面加localhost

但是好像都沒有用，一直遇到報錯如下：

A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 25 - Connection string is not valid) (Microsoft SQL Server，錯誤: 87)

嘗試好久都沒用，最后還是看官方文檔，填localhost就行了，果然官方文檔才是yyds