为什么大鱼没有显示

Question

// JavaScript Documentvar momObj=function(){ this.x; this.y; this.bigEye=new Image(); this.bigBody=new Image(); this.bigTail=new Image(); }momObj.prototype.init=function(){ this.x=canWidth*0.5; this.y=canHeight*0.5; this.bigEye.src="./src/bigEye0.png"; this.bigBody.src="./src/bigSwim0.png"; this.bigTail.src="./src/bigTail0.png"; }momObj.prototype.draw=function(){ ctx1.drawImage(this.bigEye,this.x,this.y); ctx1.drawImage(this.bigBody,this.x,this.y); ctx1.drawImage(this.bigTail,this.x,this.y); }

Answer 1

调用函数了？