陌念

摘要： 1 文件资源管理器的递归 private void LoadTree(string path,TreeNode node) { string[] dirs = Directory.GetDirectories(path); foreach (string dir in dirs) { TreeNode node1 = new TreeNode(Path.GetFileName(dir)); if (node == null) //根节点 { tvMain.Nodes.Add(node1); } else { node.Nodes.Add(node1); } if (Directory.GetD 阅读全文

摘要： 触发器ALTER trigger [dbo].[updateMoney]on [dbo].[ldjl]for insertas2 事物--事务declare @sumError intset @sumError = 0begin tran --transaction update bank set balance = balance + 1000 where cId = '0002' set @sumError = @sumError + @@error update bank set balance = balance - 1000 where cid='0001&# 阅读全文