分析并修改嵌套目录
获取 $InstallationDirectory 中每个文件的 FileByteCount 关联.
In[1]:=
![Click for copyable input](assets.zh/analyze-and-modify-nested-directories/In_45.png)
FileSystemMap[FileByteCount, $InstallationDirectory]
Out[1]=
![](assets.zh/analyze-and-modify-nested-directories/O_38.png)
获取目录前两级中所有文件的 FileDate 的嵌套关联.
In[2]:=
![Click for copyable input](assets.zh/analyze-and-modify-nested-directories/In_46.png)
FileSystemMap[FileDate,
FileNameJoin[{$InstallationDirectory, "Documentation", "English"}],
2]
Out[2]=
![](assets.zh/analyze-and-modify-nested-directories/O_39.png)
获取以展平的关联给出的同样结果.
In[3]:=
![Click for copyable input](assets.zh/analyze-and-modify-nested-directories/In_47.png)
FileSystemMap[FileDate,
FileNameJoin[{$InstallationDirectory, "Documentation",
"English"}], 2, 1]
Out[3]=
![](assets.zh/analyze-and-modify-nested-directories/O_40.png)
查看 $UserBaseDirectory 中文件的修改日期.
In[4]:=
![Click for copyable input](assets.zh/analyze-and-modify-nested-directories/In_48.png)
FileSystemMap[FileDate, $UserBaseDirectory, 2]
Out[4]=
![](assets.zh/analyze-and-modify-nested-directories/O_41.png)
设置指定目录中直至第二级的所有文件的 FileDate.
In[5]:=
![Click for copyable input](assets.zh/analyze-and-modify-nested-directories/In_49.png)
FileSystemScan[SetFileDate, $UserBaseDirectory, 2]
现在,$UserBaseDirectory 中的所有文件的修改日期都一样.
In[6]:=
![Click for copyable input](assets.zh/analyze-and-modify-nested-directories/In_50.png)
FileSystemMap[FileDate, $UserBaseDirectory, 2, 1]
Out[6]=
![](assets.zh/analyze-and-modify-nested-directories/O_42.png)