用的SQL Server 2008，选择数据库引擎，服务器名称选择(local)之后点连接会弹出
标题: 连接到服务器
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无法连接到 (local)。

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其他信息:

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: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server，错误: 2)

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按钮:

确定
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这个问题..网上搜了很久无法解决，重装了一遍也还是不行

把服务器名称设成一个点“.”
试一下。