标题字符串添加到条目数组后，就释放标题字符串对象，这样下一个标题就不会添加到前一个标题上。

After the title string is added to the items array, you release the title string object so that the next title is not appended to the previous title.

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如果不需要数组，那么您必须释放它，如清单12所示。

If the array is not yet required, then you must release it, as shown in Listing 12.

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清单12 .释放一个数组。

Listing 12. Releasing an array.

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