A.int Read()B.string ReadLine()C.string ReadToEnd()D.int Peek()
A.MoveToB.DeleteC.NameD.Create
A.public boolean exists()文件或者文件夾是否存在B.public boolean isDirectory()判斷文件對(duì)象是否為文件夾C.public boolean isFile()判斷文件對(duì)象是否為文件D.public boolean isMdir()判斷文件對(duì)象是否為新創(chuàng)建的文件夾