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摘要： 通过SQL 联表查询：（一看就明白）private void Form1_Load(object sender, EventArgs e) { SqlConnection con = new SqlConnection(@"Data Source=myServer;Initial Catalog=Northwind;Integrated Security=True;");//数据连接字符串 SqlDataAdapter dap = new SqlDataAdapter("SELECT Orders.OrderID, Customers.CompanyName, O 阅读全文