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大家好，最近需要用GPIO41做个按键来控制，一个灯的点亮和关闭，求告诉方法。
很简单的
能告诉具体操作方法吗？我能获取到按键事件，如下所示，就是不能执行事件处理函数。 Tue Sep 4 22:42:27 2018 user.notice root: the button was BTN_2 and the action was pressed Tue Sep 4 22:42:28 2018 user.notice root: the button was BTN_2 and the action was released
