核心架构请查阅 canvas-select 组件，一个用于图片标注的 javascript 库，基于 canvas，简单轻量，支持矩形、多边形、点、折线、圆形标注、网格标注。 使用离屏 canvas 绘制静态背景图片，避免频繁绘制。 避免浮点数运算，使用 Math.round()或 Math.floor()进行取整。

These tags add menus, toggles, media, forms, and responsive images with minimal code.

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Editor's Note: APYs listed in this article are up-to-date as of the time of publication. They may fluctuate (up or down) as the Fed rate changes. CNBC Select will update as changes are made public.

This post will help you if you cannot select multiple files or folders in Windows Explorer. Often, while working in File Explorer, you may need to select multiple files or folders at once. There are ...

SolidWorks (stylized as SOLIDWORKS), is a solid modeling computer-aided design (CAD) and computer-aided engineering (CAE) software program that runs on Microsoft Windows. The SolidWorks is produced by ...