构造子索引
File(File, String)
File(String)
File(String, String)
方法索引
canRead()
canWrite()
delete()
equals(Object)
exists()
getAbsolutePath()
getCanonicalPath()
getName()
getParent()
getPath()
hashCode()
isAbsolute()
isDirectory()
isFile()
lastModified()
length()
list()
list(FilenameFilter)
mkdir()
mkdirs()
renameTo(File)
toString()
变量索引
pathSeparator
pathSeparatorChar
separator
separatorChar