Warning: Undefined array key 0 in /www/wwwroot/w/show/success.php on line 266

Warning: Trying to access array offset on value of type null in /www/wwwroot/w/show/success.php on line 266

Warning: Undefined array key 0 in /www/wwwroot/w/show/success.php on line 266

Warning: Trying to access array offset on value of type null in /www/wwwroot/w/show/success.php on line 266

10.5　委托与事件

**本节视频教学录像：8分钟**

委托和事件是C#中两个比较复杂的概念，本节介绍这两个概念和基本用法，以使读者能够理解C#中的事件处理机制。

Warning: Undefined array key 0 in /www/wwwroot/w/show/success.php on line 276

Warning: Trying to access array offset on value of type null in /www/wwwroot/w/show/success.php on line 276

Warning: Undefined array key 0 in /www/wwwroot/w/show/success.php on line 276

Warning: Trying to access array offset on value of type null in /www/wwwroot/w/show/success.php on line 276