下载：https://openlayers.org/download/
The recommended way to use OpenLayers is to work with the ol package（link）. You can install the latest with npm:
建议使用方式为ol包。你可以使用npm来安装最新的：
npm install olHosted builds for development
If you want to try out OpenLayers without downloading anything (not recommended for production), include the following in the head of your html page:
如果你不想下载任何东西，只是想尝试一下OpenLayers（不建议生产环境下这样做），包含如下内容在你的html网页的头部：
Downloads for the v6.4.3 release
| Archive | Description |
|---|---|
| v6.4.3-dist.zip | Includes a full build of the library (ol.js), a source map (ol.js.map), and library CSS (ol.css with source map ol.css.map). |
| v6.4.3.zip | Includes all of the above plus examples, API docs, and sources. |
See the v6.4.3 release page for a changelog and any special upgrade notes.
For archives of previous releases, see the complete list of releases.