--- PStore.new(file)
      ե̾fileǥǡ١ɤ߽񤭤롣
      fileΤǥ쥯ȥϽ񤭹߲ǽǤɬפ롣
      ʤʤ顢ǡ١򹹿Ȥ˥Хååץե뤬뤫
      Хååץե̾ϥե̾θ~Ĥ

