晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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Directory :  /proc/self/root/usr/share/tk8.6/demos/

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Current File : //proc/self/root/usr/share/tk8.6/demos/tree.tcl
# tree.tcl --
#
# This demonstration script creates a toplevel window containing a Ttk
# tree widget.

if {![info exists widgetDemo]} {
    error "This script should be run from the \"widget\" demo."
}

package require Tk

set w .tree
catch {destroy $w}
toplevel $w
wm title $w "Directory Browser"
wm iconname $w "tree"
positionWindow $w

## Explanatory text
ttk::label $w.msg -font $font -wraplength 4i -justify left -anchor n -padding {10 2 10 6} -text "Ttk is the new Tk themed widget set. One of the widgets it includes is a tree widget, which allows the user to browse a hierarchical data-set such as a filesystem. The tree widget not only allows for the tree part itself, but it also supports an arbitrary number of additional columns which can show additional data (in this case, the size of the files found in your filesystem). You can also change the width of the columns by dragging the boundary between them."
pack $w.msg -fill x

## See Code / Dismiss
pack [addSeeDismiss $w.seeDismiss $w] -side bottom -fill x

## Code to populate the roots of the tree (can be more than one on Windows)
proc populateRoots {tree} {
    foreach dir [lsort -dictionary [file volumes]] {
	populateTree $tree [$tree insert {} end -text $dir \
		-values [list $dir directory]]
    }
}

## Code to populate a node of the tree
proc populateTree {tree node} {
    if {[$tree set $node type] ne "directory"} {
	return
    }
    set path [$tree set $node fullpath]
    $tree delete [$tree children $node]
    foreach f [lsort -dictionary [glob -nocomplain -dir $path *]] {
	set type [file type $f]
	set id [$tree insert $node end -text [file tail $f] \
		-values [list $f $type]]

	if {$type eq "directory"} {
	    ## Make it so that this node is openable
	    $tree insert $id 0 -text dummy ;# a dummy
	    $tree item $id -text [file tail $f]/

	} elseif {$type eq "file"} {
	    set size [file size $f]
	    ## Format the file size nicely
	    if {$size >= 1024*1024*1024} {
		set size [format %.1f\ GB [expr {$size/1024/1024/1024.}]]
	    } elseif {$size >= 1024*1024} {
		set size [format %.1f\ MB [expr {$size/1024/1024.}]]
	    } elseif {$size >= 1024} {
		set size [format %.1f\ kB [expr {$size/1024.}]]
	    } else {
		append size " bytes"
	    }
	    $tree set $id size $size
	}
    }

    # Stop this code from rerunning on the current node
    $tree set $node type processedDirectory
}

## Create the tree and set it up
ttk::treeview $w.tree -columns {fullpath type size} -displaycolumns {size} \
	-yscroll "$w.vsb set" -xscroll "$w.hsb set"
ttk::scrollbar $w.vsb -orient vertical -command "$w.tree yview"
ttk::scrollbar $w.hsb -orient horizontal -command "$w.tree xview"
$w.tree heading \#0 -text "Directory Structure"
$w.tree heading size -text "File Size"
$w.tree column size -stretch 0 -width 70
populateRoots $w.tree
bind $w.tree <<TreeviewOpen>> {populateTree %W [%W focus]}

## Arrange the tree and its scrollbars in the toplevel
lower [ttk::frame $w.dummy]
pack $w.dummy -fill both -expand 1
grid $w.tree $w.vsb -sticky nsew -in $w.dummy
grid $w.hsb -sticky nsew -in $w.dummy
grid columnconfigure $w.dummy 0 -weight 1
grid rowconfigure $w.dummy 0 -weight 1

haha - 2025