You then periodically update the current value of the progress bar with the setValue() method to indicate the current progress of the task. Listing 2 shows a simple example of setValue()

然后定期用setValue()方法更新进度条的值以显示任务的当前进展。

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You can watch the progress of the task and check out the current activity as they are displayed in the main window of the program.

你可以看任务的进展情况，并检查了当前的活动，因为它们显示在程序的主窗口。

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You can watch the progress of the task and check out the current activity as they are displayed in the main window of the program.

你可以看任务的进展情况，并检查了当前的活动，因为它们显示在程序的主窗口。

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