GRplistController generates a plist dictionary file in the user's data storage directory to store the locations and last download dates of cached plists keyed to the remote URL.

GRplistController在此用户的数据存储目录生成一个plist字典文件，以便存储组成远程url的缓存后的plist的位置和最近一次下载日期。

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This example shows a single static property: $iodir, which holds the path to the default directory for saving and reading Dictionary data.

下例显示单个静态属性：$iodir，存放用于保存和读取 Dictionary 数据的默认目录的路径。

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