相关疑难解决方法(0)

console.log('Hello world')

var c = document.getElementById('canvas')
var ctx = c.getContext('2d')
var playerImg = new Image()

// http://i.imgur.com/ruZv0dl.png sees a CLEAR, CRISP image
playerImg.src = 'http://i.imgur.com/ruZv0dl.png'
playerImg.width = 32
playerImg.height = 32

playerImg.onload = function() {
  ctx.drawImage(playerImg, 0, 0, 32, 32);
};

#canvas {
  background: #ABABAB;
  position: relative;
  height: 352px;
  width: 512px;
  z-index: 1;
}

<canvas id="canvas" height="352" width="521"></canvas>