键盘按键的各种编码对照表

傷城~ 2022-09-14 06:26 852阅读 0赞

本附录中的各表列举了键盘按键扫描码和其ASCII码之间的对照关系，表中数据都是十六进制形式。

在用中断16H的0号功能时，当按下任意一个键或组合键时，寄存器AH和AL分别保存着该按键的扫描码和ASCII码。

## 表1、ASCII码的编码方案 ##

## 表2、字母和空格按键的编码表 ##

<table> 
 <thead> 
  <tr> 
   <th>按　键</th> 
   <th>单　键</th> 
   <th></th> 
   <th>SHIFT</th> 
   <th></th> 
   <th>CTRL</th> 
   <th></th> 
   <th>ALT</th> 
   <th></th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>按　键</td> 
   <td>扫描码</td> 
   <td>ASCII码</td> 
   <td>扫描码</td> 
   <td>ASCII码</td> 
   <td>扫描码</td> 
   <td>ASCII码</td> 
   <td>扫描码</td> 
   <td>ASCII码</td> 
  </tr> 
  <tr> 
   <td>a and A</td> 
   <td>1E</td> 
   <td>61</td> 
   <td>1E</td> 
   <td>41</td> 
   <td>1E</td> 
   <td>01</td> 
   <td>1E</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>b and B</td> 
   <td>30</td> 
   <td>62</td> 
   <td>30</td> 
   <td>42</td> 
   <td>30</td> 
   <td>02</td> 
   <td>30</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>c and C</td> 
   <td>2E</td> 
   <td>63</td> 
   <td>2E</td> 
   <td>43</td> 
   <td>2E</td> 
   <td>03</td> 
   <td>2E</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>d and D</td> 
   <td>20</td> 
   <td>64</td> 
   <td>20</td> 
   <td>44</td> 
   <td>20</td> 
   <td>04</td> 
   <td>20</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>e and E</td> 
   <td>12</td> 
   <td>65</td> 
   <td>12</td> 
   <td>45</td> 
   <td>12</td> 
   <td>05</td> 
   <td>12</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>f and F</td> 
   <td>21</td> 
   <td>66</td> 
   <td>21</td> 
   <td>46</td> 
   <td>21</td> 
   <td>06</td> 
   <td>21</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>g and G</td> 
   <td>22</td> 
   <td>67</td> 
   <td>22</td> 
   <td>47</td> 
   <td>22</td> 
   <td>07</td> 
   <td>22</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>h and H</td> 
   <td>23</td> 
   <td>68</td> 
   <td>23</td> 
   <td>48</td> 
   <td>23</td> 
   <td>08</td> 
   <td>23</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>i and I</td> 
   <td>17</td> 
   <td>69</td> 
   <td>17</td> 
   <td>49</td> 
   <td>17</td> 
   <td>09</td> 
   <td>17</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>j an1 J</td> 
   <td>24</td> 
   <td>6A</td> 
   <td>24</td> 
   <td>4A</td> 
   <td>24</td> 
   <td>0A</td> 
   <td>24</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>k and K</td> 
   <td>25</td> 
   <td>6B</td> 
   <td>25</td> 
   <td>4B</td> 
   <td>25</td> 
   <td>0B</td> 
   <td>25</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>l and L</td> 
   <td>26</td> 
   <td>6C</td> 
   <td>26</td> 
   <td>4C</td> 
   <td>26</td> 
   <td>0C</td> 
   <td>26</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>m and M</td> 
   <td>32</td> 
   <td>6D</td> 
   <td>32</td> 
   <td>4D</td> 
   <td>32</td> 
   <td>0D</td> 
   <td>32</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>n and N</td> 
   <td>31</td> 
   <td>6E</td> 
   <td>31</td> 
   <td>4E</td> 
   <td>31</td> 
   <td>0E</td> 
   <td>31</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>o and O</td> 
   <td>18</td> 
   <td>6F</td> 
   <td>18</td> 
   <td>4F</td> 
   <td>18</td> 
   <td>0F</td> 
   <td>18</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>p and P</td> 
   <td>19</td> 
   <td>70</td> 
   <td>19</td> 
   <td>50</td> 
   <td>19</td> 
   <td>10</td> 
   <td>19</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>q and Q</td> 
   <td>10</td> 
   <td>71</td> 
   <td>10</td> 
   <td>51</td> 
   <td>10</td> 
   <td>11</td> 
   <td>10</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>r and R</td> 
   <td>13</td> 
   <td>72</td> 
   <td>13</td> 
   <td>52</td> 
   <td>13</td> 
   <td>12</td> 
   <td>13</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>s and S</td> 
   <td>1F</td> 
   <td>73</td> 
   <td>1F</td> 
   <td>53</td> 
   <td>1F</td> 
   <td>13</td> 
   <td>1F</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>t and T</td> 
   <td>14</td> 
   <td>74</td> 
   <td>14</td> 
   <td>54</td> 
   <td>14</td> 
   <td>14</td> 
   <td>14</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>u and U</td> 
   <td>16</td> 
   <td>75</td> 
   <td>16</td> 
   <td>55</td> 
   <td>16</td> 
   <td>15</td> 
   <td>16</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>v and V</td> 
   <td>2F</td> 
   <td>76</td> 
   <td>2F</td> 
   <td>56</td> 
   <td>2F</td> 
   <td>16</td> 
   <td>2F</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>w and W</td> 
   <td>11</td> 
   <td>77</td> 
   <td>11</td> 
   <td>57</td> 
   <td>11</td> 
   <td>17</td> 
   <td>11</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>x and X</td> 
   <td>2D</td> 
   <td>78</td> 
   <td>2D</td> 
   <td>58</td> 
   <td>2D</td> 
   <td>18</td> 
   <td>2D</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>y and Y</td> 
   <td>15</td> 
   <td>79</td> 
   <td>15</td> 
   <td>59</td> 
   <td>15</td> 
   <td>19</td> 
   <td>15</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>z and Z</td> 
   <td>2C</td> 
   <td>7A</td> 
   <td>2C</td> 
   <td>5A</td> 
   <td>2C</td> 
   <td>1A</td> 
   <td>2C</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>SpaceBar</td> 
   <td>39</td> 
   <td>20</td> 
   <td>39</td> 
   <td>20</td> 
   <td>39</td> 
   <td>20</td> 
   <td>39</td> 
   <td>20</td> 
  </tr> 
 </tbody> 
</table>

## 表3、功能键的编码表 ##

## 表4、数字键盘的编码表 ##

## 表5、第一排数字键盘的编码表 ##

<table> 
 <thead> 
  <tr> 
   <th>键</th> 
   <th>单　键</th> 
   <th></th> 
   <th>SHIFT</th> 
   <th></th> 
   <th>CTRL</th> 
   <th></th> 
   <th>ALT</th> 
   <th></th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>按　键</td> 
   <td>扫描码</td> 
   <td>ASCII码</td> 
   <td>扫描码</td> 
   <td>ASCII码</td> 
   <td>扫描码</td> 
   <td>ASCII码</td> 
   <td>扫描码</td> 
   <td>ASCII码</td> 
  </tr> 
  <tr> 
   <td>` and ~</td> 
   <td>29</td> 
   <td>60</td> 
   <td>29</td> 
   <td>7E</td> 
   <td></td> 
   <td></td> 
   <td>29</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>1 and !</td> 
   <td>02</td> 
   <td>31</td> 
   <td>02</td> 
   <td>21</td> 
   <td></td> 
   <td></td> 
   <td>78</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>2 and @</td> 
   <td>03</td> 
   <td>32</td> 
   <td>03</td> 
   <td>40</td> 
   <td>03</td> 
   <td>00</td> 
   <td>79</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>3 and #</td> 
   <td>04</td> 
   <td>33</td> 
   <td>04</td> 
   <td>23</td> 
   <td></td> 
   <td></td> 
   <td>7A</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>4 and $</td> 
   <td>05</td> 
   <td>34</td> 
   <td>05</td> 
   <td>24</td> 
   <td></td> 
   <td></td> 
   <td>7B</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>5 and %</td> 
   <td>06</td> 
   <td>35</td> 
   <td>06</td> 
   <td>25</td> 
   <td></td> 
   <td></td> 
   <td>7C</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>6 and ^</td> 
   <td>07</td> 
   <td>36</td> 
   <td>07</td> 
   <td>5E</td> 
   <td>07</td> 
   <td>1E</td> 
   <td>7D</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>7 and &amp;</td> 
   <td>08</td> 
   <td>37</td> 
   <td>08</td> 
   <td>26</td> 
   <td></td> 
   <td></td> 
   <td>7E</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>8 and *</td> 
   <td>09</td> 
   <td>38</td> 
   <td>09</td> 
   <td>2A</td> 
   <td></td> 
   <td></td> 
   <td>7F</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>9 and (</td> 
   <td>0A</td> 
   <td>39</td> 
   <td>0A</td> 
   <td>38</td> 
   <td></td> 
   <td></td> 
   <td>80</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>0 and )</td> 
   <td>0B</td> 
   <td>30</td> 
   <td>0B</td> 
   <td>29</td> 
   <td></td> 
   <td></td> 
   <td>81</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>- and _</td> 
   <td>0C</td> 
   <td>2D</td> 
   <td>0C</td> 
   <td>5F</td> 
   <td>0C</td> 
   <td>1F</td> 
   <td>82</td> 
   <td>00</td> 
  </tr> 
  <tr> 
   <td>= and +</td> 
   <td>0D</td> 
   <td>3D</td> 
   <td>0D</td> 
   <td>2B</td> 
   <td></td> 
   <td></td> 
   <td>83</td> 
   <td>00</td> 
  </tr> 
 </tbody> 
</table>

## 表6、操作按键的编码表 ##

## 表7、标号按键的编码表 ##

## 表8、附加按键的编码表 ##

## 表9、其它按键的扫描码 ##

当这些键被按下时，**BIOS**并没有把它们的扫描码输入键盘缓冲区。

<table> 
 <thead> 
  <tr> 
   <th>按　键</th> 
   <th>扫描码</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>CapsLock</td> 
   <td>3A</td> 
  </tr> 
  <tr> 
   <td>NumLock</td> 
   <td>45</td> 
  </tr> 
  <tr> 
   <td>ScrollLock</td> 
   <td>46</td> 
  </tr> 
  <tr> 
   <td>Shift(Left)</td> 
   <td>2A</td> 
  </tr> 
  <tr> 
   <td>Shift(Right)</td> 
   <td>36</td> 
  </tr> 
  <tr> 
   <td>Alt</td> 
   <td>38</td> 
  </tr> 
  <tr> 
   <td>Ctrl</td> 
   <td>1D</td> 
  </tr> 
  <tr> 
   <td>PrtScreen</td> 
   <td>37</td> 
  </tr> 
 </tbody> 
</table>