清单1展示了在运行SimpleApp之前，如何在Windows命令窗口中临时设置CLASSPATH，以包含cs . jar和当前工作目录。

Listing 1 shows how to temporarily set CLASSPATH in a Windows command window to include derby.jar and the current working directory before running SimpleApp.

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LiveRun会获得当前文本窗口中的所有代码，将其编译到一个临时目录中，然后运行它。

LiveRun will will pick up all the code in the current text window, compile it to a temporary location, then run it.

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打开文本窗口，使用主目录作为当前目录。

Do so by opening a text window with your home directory as your current directory.

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