版本：
文件：
- https://cdn.bootcdn.net/ajax/libs/knockout/3.5.1/knockout-latest.debug.js
- https://cdn.bootcdn.net/ajax/libs/knockout/3.5.1/knockout-latest.debug.min.js
- https://cdn.bootcdn.net/ajax/libs/knockout/3.5.1/knockout-latest.debug.min.js.map
- https://cdn.bootcdn.net/ajax/libs/knockout/3.5.1/knockout-latest.js
- https://cdn.bootcdn.net/ajax/libs/knockout/3.5.1/knockout-latest.min.js
- https://cdn.bootcdn.net/ajax/libs/knockout/3.5.1/knockout-latest.min.js.map