23、编程基础：ASCII字符集、Visual Basic.NET 兼容性及问题解答

编程基础：ASCII字符集、Visual Basic.NET 兼容性及问题解答

1. ASCII字符集

ASCII（美国信息交换标准代码）字符集是计算机中常用的字符编码系统，前128个字符是最常用的。以下是部分ASCII字符及其对应值的表格：
| ASCII值 | 字符 | ASCII值 | 字符 | ASCII值 | 字符 | ASCII值 | 字符 |
| ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- |
| 0 | NUL | 32 | (space) | 64 | @ | 96 | ` |
| 1 | SOH | 33 |! | 65 | A | 97 | a |
| 2 | STX | 34 | ” | 66 | B | 98 | b |
| 3 | ETX | 35 | # | 67 | C | 99 | c |
| 4 | EOT | 36 | $ | 68 | D | 100 | d |
| 5 | ENQ | 37 | % | 69 | E | 101 | e |
| 6 | ACK | 38 | & | 70 | F | 102 | f |
| 7 | BEL | 39 | ’ | 71 | G | 103 | g |
| 8 | BS | 40 | ( | 72 | H | 104 | h |
| 9 | HT | 41 | ) | 73 | I | 105 | i |
| 10 | LF | 42 | * | 74 | J | 106 | j |
| 11 | VT | 43 | + |