HTML canvas strokeRect() 方法
实例
绘制150*100像素的矩形：
JavaScript:
var c=document.getElementById("myCanvas");
var ctx=c.getContext("2d");
ctx.strokeRect(20,20,150,100);
Syntax
context.strokeRect(x,y,width,height);
Parameter Value
| Parameter | Description |
|---|---|
| x | The x coordinate of the top-left corner of the rectangle. |
| y | The y coordinate of the top-left corner of the rectangle. |
| width | The width of the rectangle, in pixels. |
| height | The height of the rectangle, in pixels. |
Browser Support
The numbers in the table indicate the first browser version that fully supports this property.
| Chrome | Edge | Firefox | Safari | Opera |
|---|---|---|---|---|
| Chrome | Edge | Firefox | Safari | Opera |
| 4.0 | 9.0 | 3.6 | 4.0 | 10.1 |
Note:Internet Explorer 8 and earlier versions do not support the <canvas> element.
