不保证 Dir() 会以任何特定顺序返回文件.MS Access VBA 文档 甚至说:

There's no guarantee that Dir() will return the files in any particular order. The MS Access VBA documentation even says:

提示 因为文件名是没有特定的顺序检索，你可能想要存储返回的文件名在 array 中，然后对数组进行排序.

Tip Because file names are retrieved in no particular order, you may want to store returned file names in an array, and then sort the array.