C#简单问题

显示全部楼层 · 2008-12-23 09:41:01

class DBConnection {
}

class DBManager {
static DBConnection[] activeConnections;
public delegate void EnumConnectionsCallback(DBConnection connection);
public static void EnumConnections(EnumConnectionsCallback callback) {
foreach (DBConnection connection in activeConnections){
callback(connection);
} // for
} // function

} // class
public static void EnumConnections(EnumConnectionsCallback callback)方法中传代理进去,是什么意思啊?还有callback到底是什么意思啊

千问 · 2008-12-23 09:41:01

public delegate void EnumConnectionsCallback(DBConnection connection); 类似函数指针DBManager.EnumConnectionsCallback callback = new DBManager.EnumConnectionsCallback(CallBack);DBManager.EnumConnections(callback);...public void CallBack(DBConnection con){ // 对con进行处理，比如打开连接等等 ...}具体要看代码的使用才知道callback的意思。...

千问 · 2008-12-23 09:41:01

都是一些方法你代码不全.....