JS绘画几个图片有无简单的方法？？？？？？

像以下代码，绘画几个图，十烦锁，有无简洁的写洁啦？？？？？？？
   
        var conx = document.getElementById("canvas_id");
        var gg = conx.getContext("2d");
        var left = [];
        left[0]= new Image();
        left[1]= new Image();
        left[2]= new Image();
        left[0].src="left0.png"
        left[1].src="left1.png"
        left[2].src="left2.png"
        
        
        left[0].onload=function(){
           
            gg.drawImage(left[0],0,0,32,32);
        }
        left[1].onload=function(){
           
            gg.drawImage(left[1],0,100,32,32);
        }
            left[2].onload=function(){
           
            gg.drawImage(left[2],0,200,32,32);
            
            

[此贴子已经被作者于2017-11-8 19:06编辑过]