清单20显示了修改后的函数，它利用了几个列表数据结构和前面描述的各种列表操作函数的优势。

Listing 20 shows a new version of the function that takes advantage of several list data structures and the various list-manipulation functions described earlier.

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然后可以使用此DOM结构、DOM结构的方法以及xul函数提供的其他方法来检查并修改数据。

You can then use the DOM structure to examine and modify the data using its own method and additional methods provided by XUL functions.

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在修改后的体系结构中，dumb . c绘制函数将源像素内存区复制到目标内存区。

In the existing architecture we modified, the dumb.c draw function copies the source pixel memory area into the destination memory area.

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