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Canvas strokeStyle 属性

❮ 画布参考

示例

使用 strokeStyle = "red" 绘制一个矩形

YourbrowserdoesnotsupporttheHTML5canvastag.

JavaScript

const canvas = document.getElementById("myCanvas");
const ctx = canvas.getContext("2d");

ctx.strokeStyle = "red";
ctx.strokeRect(20, 20, 150, 100);
尝试一下 »

更多示例在下面。


描述

strokeStyle 属性设置或返回用于描边的颜色、渐变或图案。

默认值为 #000000(纯黑色)。

另请参阅

fillStyle 属性(设置填充颜色/样式)

lineWidth 属性(设置线宽)

beginPath() 方法(开始新的路径)

moveTo() 方法(将路径移动到一个点)

lineTo() 方法(向路径添加一条线)

stroke() 方法(绘制当前路径)

strokeRect() 方法(绘制一个矩形)


语法

context.strokeStyle = color|gradient|pattern

属性值

描述 试玩它
color 一个 CSS 颜色值,指示绘图的描边颜色。默认值为 #000000 试玩它 »
gradient 一个渐变对象(线性径向),用于创建渐变描边  
pattern 一个 图案 对象,用于创建图案描边  


更多示例

示例

绘制一个带有渐变 stokeStyle 的矩形

YourbrowserdoesnotsupporttheHTML5canvastag.

JavaScript

const canvas = document.getElementById("myCanvas");
const ctx = canvas.getContext("2d");

// 创建渐变
const gradient = ctx.createLinearGradient(0, 0, 170, 0);
gradient.addColorStop("0", "magenta");
gradient.addColorStop("0.5", "blue");
gradient.addColorStop("1.0", "red");

// 使用渐变填充
ctx.strokeStyle = gradient;
ctx.lineWidth = 5;
ctx.strokeRect(20, 20, 150, 100);
尝试一下 »

示例

使用渐变 strokeStyle 编写文本 "Big smile!"

YourbrowserdoesnotsupporttheHTML5canvastag.

JavaScript

const canvas = document.getElementById("myCanvas");
const ctx = canvas.getContext("2d");
ctx.font = "30px Verdana";

// 创建渐变
const gradient = ctx.createLinearGradient(0, 0, c.width, 0);
gradient.addColorStop("0", "magenta");
gradient.addColorStop("0.5", "blue");
gradient.addColorStop("1.0", "red");

// 使用渐变填充
ctx.strokeStyle = gradient;
ctx.strokeText("Big smile!", 10, 50);
尝试一下 »

浏览器支持

<canvas> 元素是 HTML5 标准(2014 年)。

stokestyle 在所有现代浏览器中都受支持

Chrome Edge Firefox Safari Opera IE
9-11

❮ 画布参考
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