egret addEventListener处理函数添加参数

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egret中使用addEventListener是要添加参数使用bind

private mainFunction(){
    let param1 = '参数1';
    let param2 = '参数2';
    let param3 = '参数3';
    Btn.addEventListener(egret.TouchEvent.TOUCH_BEGIN, this.clickFunction.bind(this, param1, param2, param3 ,false), this);
}

private clickFunction(param1, param2, param3){
    console.log(param1);
    console.log(param2);
    console.log(param3);
}