Take Listing 9, which creates a collection of character documents, each containing the string representation of the character and its associated ASCII code.
以清单9为例，它创建一个字符文档集合，每个集合都包含字符的字符串表示形式及其关联的ASCII代码。
Take Listing 9, which creates a collection of character documents, each containing the string representation of the character and its associated ASCII code.
以清单9为例，它创建一个字符文档集合，每个集合都包含字符的字符串表示形式及其关联的ASCII代码。
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