Cannot set property 'onload' of null"
?Cannot set property 'onload' of null",是怎么回事？
櫻沫
2016-09-18
2 回答
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2017-05-14
js代碼引用要在canvas標(biāo)簽下面
2016-09-18
document.body.onload = game;
function game(){
//初始工作
init();
}
function init(){
//獲得canvas、context
var can1 = document.getElementById("canvas1");//在前面：fishes、UI、dust、circle
var ctx1 = can1.getContext();
var can2 = document.getElementById("canvas2");//background、ane、fruits
var ctx2 = can2.getContext();
}
function gameloop(){
requestAnimFrame(gameloop);
}