canvas之画矩形

1 <canvas id="canvas" width="600" height="500" style="background-color: yellow"></canvas>

 1  var canvas=document.getElementById("canvas");
 2     var cxt=canvas.getContext("2d");
 3     cxt.beginPath();
 4     cxt.rect(100,20,100,100);
 5     cxt.stroke();//空心矩形
 6     cxt.closePath();
 7     //其他画法
 8     cxt.beginPath();
 9     cxt.strokeRect(100,150,100,100);//这个方法相当于rect()和stroke()组合
10     cxt.closePath();
11
12     //实心矩形
13     cxt.beginPath();
14     cxt.rect(100,270,100,100);
15     cxt.fill();
16     cxt.closePath();
17     //其他方法
18     cxt.beginPath();
19     cxt.fillStyle="red";//填充颜色
20     cxt.fillRect(100,390,100,100);//实心矩形
21     cxt.closePath();

canvas之画矩形

时间： 2024-08-28 14:30:05

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