EFI Shell commands -- MODE(顯示或改變控制台輸出裝置模式)(改變文字模式的欄位)

Displays or changes the console output device mode.

MODE [row col]

    row      - Number of rows
    col      - Number of columns

Note:
    1. The mode with a star at line end is the current mode setting.
    2. Only 80x25 mode is supported if console redirection is enabled.
    3. Most EFI command output was designed for 80x50 mode (50 rows).

Examples:
  * To display all available modes on standard output:
    Shell> mode
    Available modes on standard output
      col  80 row  25  *
      col  80 row  50
      col  80 row  43
      col 100 row 100

  * To change the current mode setting:
    Shell> mode 80 50
    Available modes on standard output
      col  80 row  25
      col  80 row  50  *
      col  80 row  43
      col 100 row 100