单项选择题
要实现驱动器列表框、目录列表框及文件列表框之间数据的同步,须在驱动器列表框和目录列表框的Change事件分别添加以下代码()
A.Dir1.Path=Drive1.DriveFile1.Path=Dir1.Path
B.File1.Path=Drive1.DriveDir1.Path=Drive1.Drive
C.Dir1.Path=Drive1.DriveFile1.Path=Drive1.Drive
D.File1.Path=Dir1.PathDir1.Path=Drive1.Drive
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