00:{ }
01:{'}
02:{-}
03:{!}
04:{"}
05:{#}
06:{$}
07:{%}
08:{&}
09:{(}
10:{)}
11:{*}
12:{,}
13:{.}
14:{/}
15:{:}
16:{;}
17:{?}
18:{@}
19:{[}
20:{\}
21:{]}
22:{^}
23:{_}
24:{`}
25:{{}
26:{|}
27:{}}
28:{~}
29:{+}
30:{<}
31:{=}
32:{>}
33:{0}
34:{1}
35:{2}
36:{3}
37:{4}
38:{5}
39:{6}
40:{7}
41:{8}
42:{9}
43:{a}
44:{A}
45:{b}
46:{B}
47:{c}
48:{C}
49:{d}
50:{D}
51:{e}
52:{E}
53:{f}
54:{F}
55:{g}
56:{G}
57:{h}
58:{H}
59:{i}
60:{I}
61:{j}
62:{J}
63:{k}
64:{K}
65:{l}
66:{L}
67:{m}
68:{M}
69:{n}
70:{N}
71:{o}
72:{O}
73:{p}
74:{P}
75:{q}
76:{Q}
77:{r}
78:{R}
79:{s}
80:{S}
81:{t}
82:{T}
83:{u}
84:{U}
85:{v}
86:{V}
87:{w}
88:{W}
89:{x}
90:{X}
91:{y}
92:{Y}
93:{z}
94:{Z}
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@echo off & setlocal enabledelayedexpansion & cls
(set chrs=^"#$%%^&'^(^)*+,-./01234 56789:;^<=^>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^^_`abcdefghijklmnopqrstuvwxyz{^|}~)
echo 这是一个由 ASCII 码值 32--126 ^(除了半角感叹号外^) 共 94 个字符组成的字符串:
echo %chrs%
set /p=按任意键查看对这 94 个字符进行初始编号...<nul&pause>nul&echo.
for /l %%i in (0,1,93) do (
  (set cc%%i=!chrs:~%%i,1!)
  set /a "ii=100+%%i"
  echo !ii:~1!:{!cc%%i!}
)
set /p=按任意键查看对这 94 个字符进行排序后的次序表...<nul&pause>nul&echo.
for /l %%i in (0,1,92) do (
  set /a "min=%%i, n=%%i+1"
  (set minChr=!cc%%i!)
  for /l %%j in (!n!,1,93) do (
    if "!cc%%j!" lss "!minChr!" (
	  (set min=%%j)
	  (set minChr=!cc%%j!)
	 )
  )
  for /f "tokens=1" %%m in ("!min!") do (
    (set tt=!cc%%i!)
	(set cc%%i=!cc%%m!)
	(set cc%%m=!tt!)
  )
)
for /l %%i in (0,1,93) do (
  set /a "ii=100+%%i"
  echo !ii:~1!:{!cc%%i!}
)
set /p=按任意键查看插入半角感叹号后, 95 个字符的全次序表...<nul&pause>nul&echo.
for /l %%i in (93,-1,3) do (
  set /a "jj=%%i+1"
  for /f "tokens=1" %%j in ("!jj!") do (set cc%%j=!cc%%i!)
)
setlocal disabledelayedexpansion
(set cc3=!)
setlocal enabledelayedexpansion
for /l %%i in (0,1,94) do (
  set /a "ii=100+%%i"
  echo !ii:~1!:{!cc%%i!}
)
pause
exit /b
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if ! lss # (echo lll) else echo ggg
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if ! lss - (echo lll) else echo ggg
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if ^! lss ^" (echo lll) else echo ggg
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if ^! gtr ^" (echo ggg) else echo lll
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if ^! equ ^" (echo ==) else echo ≠
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@echo off
set "$= !#$%%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~""
setlocal enabledelayedexpansion
for /l %%i in (0, 1, 94) do (
    set "@%%i=!$:~%%i,1!"
)
for /l %%i in (94, -1, 1) do (
    set /a m = %%i - 1
    for /l %%j in (0, 1, !m!) do (
        set /a n = %%j + 1
        for /l %%k in (!n!, 1, !n!) do (
            if !@%%j! gtr !@%%k! (
                set "@tmp=!@%%j!"
                set "@%%j=!@%%k!"
                set "@%%k=!@tmp!"
            )
        )
    )
)
for /l %%i in (0, 1, 94) do (
    echo;@%%i =^> !@%%i!
)
pause
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00 => '
01 => -
02 =>  
03 => !
04 => "
05 => #
06 => $
07 => %
08 => &
09 => (
10 => )
11 => *
12 => ,
13 => .
14 => /
15 => :
16 => ;
17 => ?
18 => @
19 => [
20 => \
21 => ]
22 => ^
23 => _
24 => `
25 => {
26 => |
27 => }
28 => ~
29 => +
30 => <
31 => =
32 => >
33 => 0
34 => 1
35 => 2
36 => 3
37 => 4
38 => 5
39 => 6
40 => 7
41 => 8
42 => 9
43 => a
44 => A
45 => b
46 => B
47 => c
48 => C
49 => d
50 => D
51 => e
52 => E
53 => f
54 => F
55 => g
56 => G
57 => h
58 => H
59 => i
60 => I
61 => j
62 => J
63 => k
64 => K
65 => l
66 => L
67 => m
68 => M
69 => n
70 => N
71 => o
72 => O
73 => p
74 => P
75 => q
76 => Q
77 => r
78 => R
79 => s
80 => S
81 => t
82 => T
83 => u
84 => U
85 => v
86 => V
87 => w
88 => W
89 => x
90 => X
91 => y
92 => Y
93 => z
94 => Z
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sort a.txt
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