集成使用对象或者元素最后一次编辑的时间来决定使用哪一个值。

The integration uses the last modification time of the object or element to decide which value to use.

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最后，在持续时间长的编辑会话中，如果能够实现自动保存(如图4所示)用户将非常高兴。

Finally, in long-lasting editing sessions, users will be very grateful if you implement auto-save (as illustrated in Figure 4).

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将最后的编辑时间更改为当前时间，以便让服务器知道它必须重新编译该文件。

To touch a file means to change the last edit time to the current time, so the server knows that it has to recompile that file.

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