[AS3]as3.0键盘侦听源代码示例

键盘的点击与弹起：

//Source:        
stage.addEventListener(KeyboardEvent.KEY_DOWN, xKeyDown); 
stage.addEventListener(KeyboardEvent.KEY_UP, xKeyUp); 
 
function xKeyDown(event:KeyboardEvent):void{ 
kb.text = "CuPlayer提示：点击"+event.keyCode; 
}; 
 
function xKeyUp(event:KeyboardEvent):void{ 
kb.text = "CuPlayer提示：弹起"+event.keyCode; 
}; 

按键状态的确认：

var space_flag:Boolean = false; 
 
stage.addEventListener(KeyboardEvent.KEY_DOWN,xKeyDown); 
stage.addEventListener(KeyboardEvent.KEY_UP,xKeyUp); 
stage.addEventListener(Event.ENTER_FRAME,xEnterFrame); 
 
function xKeyDown(evt:KeyboardEvent):void{ 
if(evt.keyCode == Keyboard.SPACE){ 
       space_flag = true; 
} 
} 
 
function xKeyUp(evt:KeyboardEvent):void{ 
if(evt.keyCode == Keyboard.SPACE){ 
       space_flag = false; 
} 
} 
 
function xEnterFrame(evt:Event):void{ 
if(space_flag){ 
mc.gotoAndStop(2); 
}else{ 
mc.gotoAndStop(1); 
} 
}                       

键盘的KeyCode表示：

stage.addEventListener(KeyboardEvent.KEY_DOWN, KeyDown); 
function KeyDown(evt:KeyboardEvent){     
code_text.text     = String(evt.keyCode); 
location_text.text     = String(evt.keyLocation); 
ctrl_text.text     = String(evt.ctrlKey); 
shift_text.text     = String(evt.shiftKey); 
alt_text.text     = String(evt.altKey); 
} 

[AS3]as3.0键盘侦听源代码示例.