我用代码的方式来创建按钮，每个按钮的var及label都是数组的元素（已成功创建）。

我想通过for循环为变量赋不同的值来创建单击事件，但好像不能实现（如下buttonName是一个变量，this.py_sm是一个数组，具体见附件）

        for(var i=0;i<this.py_sm.length;i++){
            var buttonName = "btn_"+i;
            this.buttonName.on(Laya.Event.CLICK,this,function(){
                console.log(this.buttonName.label);
            });
        }[/code]完整代码如下，main_script是挂载到runtime中：
[code]export default class main_script extends Laya.Scene {

    constructor() { 
        super(); 
        this.py_sm = ['b','p','m','f','d','t','n','l','g','k','h','j','q','x','zh','ch','sh','r','z','c','s','y','w'];
        this.py_ym = ['a','o','e','i','u','','ai','ei','ui','ao','ou','iu','ie','','er','an','en','in','un','','ang','eng','ing','ong'];
        this.py_ztrd = ['zhi','chi','shi','ri','zi','ci','si','yi','wu','yu','ye','yue','yin','yun','yuan','ying'];
        this.button_size = 160;
        this.column = 8;
        this.row = 5;
    }
    
    onEnable() {
        Laya.stage.bgColor = "#aaaaaa";

        // 创建按钮
        for (var i=0;i<this.row;i++){
            for (var j=0;j<this.column;j++){
                if(i*this.column + j>=this.py_sm.length){
                    break;
                }
                var obj = new Laya.Button();
                obj.var = "btn_" + i;
                obj.labelSize = 50;
                obj.sizeGrid = "8,8,8,8";
                obj.skin = "comp/button.png";
                obj.stateNum = 3;
                obj.label = this.py_sm[i*this.column + j];
                obj.x = j * this.button_size;
                obj.y = i * this.button_size;
                obj.width = this.button_size;
                obj.height = this.button_size;
                Laya.stage.addChild(obj);
            }
        }

        // 通过给变量赋值，以值的方式来循环为按钮添加单击事件
        for(var i=0;i<this.py_sm.length;i++){
            var [i][b]buttonName[/b][/i] = "btn_"+i;
            this.[b][i]buttonName[/i][/b].on(Laya.Event.CLICK,this,function(){
                console.log(this.buttonName.label);
            });
        }
    }
}