版本：
文件：
- https://cdn.bootcdn.net/ajax/libs/echarts-wordcloud/2.1.0/echarts-wordcloud.js
- https://cdn.bootcdn.net/ajax/libs/echarts-wordcloud/2.1.0/echarts-wordcloud.js.map
- https://cdn.bootcdn.net/ajax/libs/echarts-wordcloud/2.1.0/echarts-wordcloud.min.js
- https://cdn.bootcdn.net/ajax/libs/echarts-wordcloud/2.1.0/echarts-wordcloud.min.js.map