If the button is activated, then set the file location using the Workplace Viewer fileOpen function.

如果按钮处于激活状态，则使用Workplace Viewer fileopen函数来设置文件位置。

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The other notable change is how we execute the work, the "fileOpen" identifier does not open the file immediately, it is a workflow, that is an action waiting to happen.

其他明显的改变就是，我们如何执行这些代码，“fileOpen”标识符不会马上打开文件，它只是一个工作流，一个等待执行的动作。

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