文章目录网格线心形对角线科技风圆弧网格线const canvas = document.getElementsByTagName('canvas')[0];//这么写是为了获取
const linearGradient = ctx.createLinearGradient(0, -100, 10, 100);linearGradient.addColorStop(0, randomRGBA());linearGradient.addColor
功能:停止输入时插入点闪烁 输入时插入点更新
const width = 700;const height = 500;const canvas = document.getElementById("canvas") as HTMLCanvasElem
文章目录基础版 单行输入进阶版多行输出 超出换行使用canvas绘制基础版 单行输入以下是整个html文件可复制
const canvas = document.getElementById("canvas") as HTMLCanvasElement;const ctx = canvas.ge
const canvas = document.getElementById("canvas") as HTMLCanvasElement; const ctx = canvas.getContext("2d") as CanvasRenderingContext2D; class Boll { r: number; x: number; y: numbe
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