Property:
clearRect:
20,20,100,10
20,20,100,20
20,20,100,50
20,20,100,100
20,20,100,150
20,20,100,200
Canvas:
your browser does not support the canvas tag
Code:
var c = document.getElementById('myCanvas');
var ctx = c.getContext('2d');
ctx.fillStyle = 'red';
ctx.fillRect(0,0,300,150);
ctx.clearRect(
20,20,100,10)
;
单击上面的属性值可查看结果
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