function IntToBin(Value: LongInt; Size: Integer): String;
var
i: Integer;
begin
Result:='';
for i:=Size-1 downto 0 do
begin
if Value and (1 shl i)<>0 then
Result:=Result+'1'
else
Result:=Result+'0';
end;
end;
//举例：
procedure TForm1.Button1Click(Sender: TObject);
var
i: Integer;
s: string;
begin
for i := 0 to 255 do
begin
s := IntToStr(i) + #9;
s := s + IntToHex(i,2) + #9;
s := s + IntToBin(i,8);
Memo1.Lines.Add(s);
end;
end;
//结果:
{
0 00 00000000
1 01 00000001
2 02 00000010
3 03 00000011
4 04 00000100
5 05 00000101
6 06 00000110
7 07 00000111
8 08 00001000
9 09 00001001
10 0A 00001010
11 0B 00001011
12 0C 00001100
13 0D 00001101
14 0E 00001110
15 0F 00001111
16 10 00010000
17 11 00010001
18 12 00010010
19 13 00010011
20 14 00010100
21 15 00010101
22 16 00010110
23 17 00010111
24 18 00011000
25 19 00011001
26 1A 00011010
27 1B 00011011
28 1C 00011100
29 1D 00011101
30 1E 00011110
31 1F 00011111
32 20 00100000
33 21 00100001
34 22 00100010
35 23 00100011
36 24 00100100
37 25 00100101
38 26 00100110
39 27 00100111
40 28 00101000
41 29 00101001
42 2A 00101010
43 2B 00101011
44 2C 00101100
45 2D 00101101
46 2E 00101110
47 2F 00101111
48 30 00110000
49 31 00110001
50 32 00110010
51 33 00110011
52 34 00110100
53 35 00110101
54 36 00110110
55 37 00110111
56 38 00111000
57 39 00111001
58 3A 00111010
59 3B 00111011
60 3C 00111100
61 3D 00111101
62 3E 00111110
63 3F 00111111
64 40 01000000
65 41 01000001
66 42 01000010
67 43 01000011
68 44 01000100
69 45 01000101
70 46 01000110
71 47 01000111
72 48 01001000
73 49 01001001
74 4A 01001010
75 4B 01001011
76 4C 01001100
77 4D 01001101
78 4E 01001110
79 4F 01001111
80 50 01010000
81 51 01010001
82 52 01010010
83 53 01010011
84 54 01010100
85 55 01010101
86 56 01010110
87 57 01010111
88 58 01011000
89 59 01011001
90 5A 01011010
91 5B 01011011
92 5C 01011100
93 5D 01011101
94 5E 01011110
95 5F 01011111
96 60 01100000
97 61 01100001
98 62 01100010
99 63 01100011
100 64 01100100
101 65 01100101
102 66 01100110
103 67 01100111
104 68 01101000
105 69 01101001
106 6A 01101010
107 6B 01101011
108 6C 01101100
109 6D 01101101
110 6E 01101110
111 6F 01101111
112 70 01110000
113 71 01110001
114 72 01110010
115 73 01110011
116 74 01110100
117 75 01110101
118 76 01110110
119 77 01110111
120 78 01111000
121 79 01111001
122 7A 01111010
123 7B 01111011
124 7C 01111100
125 7D 01111101
126 7E 01111110
127 7F 01111111
128 80 10000000
129 81 10000001
130 82 10000010
131 83 10000011
132 84 10000100
133 85 10000101
134 86 10000110
135 87 10000111
136 88 10001000
137 89 10001001
138 8A 10001010
139 8B 10001011
140 8C 10001100
141 8D 10001101
142 8E 10001110
143 8F 10001111
144 90 10010000
145 91 10010001
146 92 10010010
147 93 10010011
148 94 10010100
149 95 10010101
150 96 10010110
151 97 10010111
152 98 10011000
153 99 10011001
154 9A 10011010
155 9B 10011011
156 9C 10011100
157 9D 10011101
158 9E 10011110
159 9F 10011111
160 A0 10100000
161 A1 10100001
162 A2 10100010
163 A3 10100011
164 A4 10100100
165 A5 10100101
166 A6 10100110
167 A7 10100111
168 A8 10101000
169 A9 10101001
170 AA 10101010
171 AB 10101011
172 AC 10101100
173 AD 10101101
174 AE 10101110
175 AF 10101111
176 B0 10110000
177 B1 10110001
178 B2 10110010
179 B3 10110011
180 B4 10110100
181 B5 10110101
182 B6 10110110
183 B7 10110111
184 B8 10111000
185 B9 10111001
186 BA 10111010
187 BB 10111011
188 BC 10111100
189 BD 10111101
190 BE 10111110
191 BF 10111111
192 C0 11000000
193 C1 11000001
194 C2 11000010
195 C3 11000011
196 C4 11000100
197 C5 11000101
198 C6 11000110
199 C7 11000111
200 C8 11001000
201 C9 11001001
202 CA 11001010
203 CB 11001011
204 CC 11001100
205 CD 11001101
206 CE 11001110
207 CF 11001111
208 D0 11010000
209 D1 11010001
210 D2 11010010
211 D3 11010011
212 D4 11010100
213 D5 11010101
214 D6 11010110
215 D7 11010111
216 D8 11011000
217 D9 11011001
218 DA 11011010
219 DB 11011011
220 DC 11011100
221 DD 11011101
222 DE 11011110
223 DF 11011111
224 E0 11100000
225 E1 11100001
226 E2 11100010
227 E3 11100011
228 E4 11100100
229 E5 11100101
230 E6 11100110
231 E7 11100111
232 E8 11101000
233 E9 11101001
234 EA 11101010
235 EB 11101011
236 EC 11101100
237 ED 11101101
238 EE 11101110
239 EF 11101111
240 F0 11110000
241 F1 11110001
242 F2 11110010
243 F3 11110011
244 F4 11110100
245 F5 11110101
246 F6 11110110
247 F7 11110111
248 F8 11111000
249 F9 11111001
250 FA 11111010
251 FB 11111011
252 FC 11111100
253 FD 11111101
254 FE 11111110
255 FF 11111111
}