#myCanvas
变换
0.1,0,0,1,0,0|0.2,0,0,1,0,0|0.4,0,0,1,0,0|1,0,0,1,0,0|1.2,0,0,1,0,0|1.4,0,0,1,0,0|2,0,0,1,0,0
ctx.transform(#val); ctx.fillStyle='lightblue'; ctx.fillRect(20,20,250,100); ctx.fillStyle='red'; ctx.font='30px Arial'; ctx.fillText('变换', 60,80);