正文
canvas 背景透明
提示：扫一扫查出行【扫一扫了解最新限行尾号】
复制提示
theCanvas = document.getElementById('canvasOne');
var context = theCanvas.getContext('2d');
context.fillStyle = 'rgba(255, 255, 255, 0)';
var context = theCanvas.getContext('2d');
context.fillStyle = 'rgba(255, 255, 255, 0)';
