| 摘要 |
When a file and a directory (folder) are displayed as icons, if the user tries to place the file in a trash area or move the file to a different directory, the relation of dependency between the file being operated and another file that uses the file being operated is displayed with a line that connects the icons of these files. Thus, the user can know that these files have the relation of dependency. In addition, when the file being operated is tried to be placed in a predetermined region including the trash area, an alarm sound is generated. In addition, when the file is tried to be moved to a location where the file cannot be searched, an alarm sound is also generated.
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