console 命令行工具 X clear

console

const canvas = document.getElementById('canvas1');
const ctx  canvas.getContext('2d');
console.log(ctx);

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>游戏1</title>
	</head>
	
	<body>
		<canvas id="canvas1"></canvas>
	</body>
	<script src="script"></script>
</html>