# aardio 范例: 可设定循环按键 



```aardio
//循环按键
import key;
import winex;
import win.ui;
/*DSG{{*/
var winform = win.form(text="可设定循环按键 ";right=408;bottom=203;)
winform.add(
btnLoop={cls="button";text="开始循环";left=142;top=135;right=247;bottom=167;z=1};
btnQuit={cls="button";text="退出程序";left=261;top=134;right=366;bottom=166;z=2};
editSetting={cls="edit";text="1";left=120;top=70;right=156;bottom=93;edge=1;multiline=1;num=1;style=8192;z=3};
editWndTitle={cls="edit";text="记事本";left=120;top=34;right=251;bottom=57;edge=1;multiline=1;z=5};
lbRepeat={cls="static";text="设定循环次数:";left=6;top=72;right=112;bottom=88;align="right";transparent=1;z=4};
lbRepeat2={cls="static";text="必须小于200";left=168;top=75;right=274;bottom=91;transparent=1;z=8};
lbTitle={cls="static";text="目标窗口标题:";left=6;top=37;right=112;bottom=53;align="right";transparent=1;z=6};
lbTitle2={cls="static";text="支持模式匹配语法";left=260;top=37;right=392;bottom=55;transparent=1;z=7}
)
/*}}*/

getSettingCount = function(){

	//getSettingCount, 并转换为数值
	var num = tonumber(winform.editSetting.text) 
	
	//输入正确性检测
	if( num && num > 200){ 
		winform.editSetting.showErrorTip("错误","请输入小于200的数值"   )  
	}
	
	//返回数值
	return num or 0;
}

winform.editSetting.onChange = function(){ 
	getSettingCount(); //调用此函数检测正确性
}

winform.btnQuit.oncommand = function( ) { 
    winform.close() //关闭窗口 
}
 
winform.btnLoop.oncommand = function( ) {
 
 	//激活需要控制的窗口
 	winex.findActivate( winform.editWndTitle.text )
	
	for(i=1;getSettingCount() ){
		
		//如果用户关闭程序
		if( ! win.delay(1000) )
			break; //中断循环
			
		//做你要做的事
		key.press( "N" )
	}
}

//显示窗口
winform.show() 
//消息循环
win.loopMessage();

```