需要引用包：github.com/denisenkom/go-mssqldb

使用 cmd 执行：

go get github.com/denisenkom/go-mssqldb

连接sqlserver的简单代码示例：

func SqlServerTest(ctx context.Context, connString string) bool {
   //connString := fmt.Sprintf("server=%s;user id=%s;password=%s;port=%s", server, userId, paasword, port)
   conn, err := sql.Open("mssql", connString)
   if err != nil {
      log.Fatal("Open connection failed:", err.Error())
      return false
   }
   defer conn.Close()
   stmt, err := conn.Exec("select 1")
   if err != nil {
      log.Fatal("exec failed:", err.Error())
      return false
   }
   affected, err := stmt.RowsAffected()
   if affected > 0 {
      fmt.Printf("ok")
      return true
   }
   return false
}