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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html> <head> <meta name="generator" content="HTML Tidy for Linux/x86 (vers 1st October 2002), see www.w3.org"> <title>ASCII Chart</title> </head> <body bgcolor="#ffffff"> <table width="100%" bgcolor="#eeeeff"> <tr> <td><a href="index.html">cppreference.com</a> -> ASCII chart</td> </tr> </table> <h3>ASCII Chart</h3> <p>The following chart contains ASCII decimal, octal, hexadecimal and character codes for values from 0 to 127.</p> <table align="center"> <tr> <th>Decimal</th> <th>Octal</th> <th>Hex</th> <th>Character</th> <th>Description</th> </tr> <tr bgcolor="#eeeeff"> <td>0</td> <td>0</td> <td>00</td> <td>NUL</td> <td> </td> </tr> <tr> <td>1</td> <td>1</td> <td>01</td> <td>SOH</td> <td>start of header</td> </tr> <tr bgcolor="#eeeeff"> <td>2</td> <td>2</td> <td>02</td> <td>STX</td> <td>start of text</td> </tr> <tr> <td>3</td> <td>3</td> <td>03</td> <td>ETX</td> <td>end of text</td> </tr> <tr bgcolor="#eeeeff"> <td>4</td> <td>4</td> <td>04</td> <td>EOT</td> <td>end of transmission</td> </tr> <tr> <td>5</td> <td>5</td> <td>05</td> <td>ENQ</td> <td>enquiry</td> </tr> <tr bgcolor="#eeeeff"> <td>6</td> <td>6</td> <td>06</td> <td>ACK</td> <td>acknowledge</td> </tr> <tr> <td>7</td> <td>7</td> <td>07</td> <td>BEL</td> <td>bell</td> </tr> <tr bgcolor="#eeeeff"> <td>8</td> <td>10</td> <td>08</td> <td>BS</td> <td>backspace</td> </tr> <tr> <td>9</td> <td>11</td> <td>09</td> <td>HT</td> <td>horizontal tab</td> </tr> <tr bgcolor="#eeeeff"> <td>10</td> <td>12</td> <td>0A</td> <td>LF</td> <td>line feed</td> </tr> <tr> <td>11</td> <td>13</td> <td>0B</td> <td>VT</td> <td>vertical tab</td> </tr> <tr bgcolor="#eeeeff"> <td>12</td> <td>14</td> <td>0C</td> <td>FF</td> <td>form feed</td> </tr> <tr> <td>13</td> <td>15</td> <td>0D</td> <td>CR</td> <td>carriage return</td> </tr> <tr bgcolor="#eeeeff"> <td>14</td> <td>16</td> <td>0E</td> <td>SO</td> <td>shift out</td> </tr> <tr> <td>15</td> <td>17</td> <td>0F</td> <td>SI</td> <td>shift in</td> </tr> <tr bgcolor="#eeeeff"> <td>16</td> <td>20</td> <td>10</td> <td>DLE</td> <td>data link escape</td> </tr> <tr> <td>17</td> <td>21</td> <td>11</td> <td>DC1</td> <td>no assignment, but usually XON</td> </tr> <tr bgcolor="#eeeeff"> <td>18</td> <td>22</td> <td>12</td> <td>DC2</td> <td> </td> </tr> <tr> <td>19</td> <td>23</td> <td>13</td> <td>DC3</td> <td>no assignment, but usually XOFF</td> </tr> <tr bgcolor="#eeeeff"> <td>20</td> <td>24</td> <td>14</td> <td>DC4</td> <td> </td> </tr> <tr> <td>21</td> <td>25</td> <td>15</td> <td>NAK</td> <td>negative acknowledge</td> </tr> <tr bgcolor="#eeeeff"> <td>22</td> <td>26</td> <td>16</td> <td>SYN</td> <td>synchronous idle</td> </tr> <tr> <td>23</td> <td>27</td> <td>17</td> <td>ETB</td> <td>end of transmission block</td> </tr> <tr bgcolor="#eeeeff"> <td>24</td> <td>30</td> <td>18</td> <td>CAN</td> <td>cancel</td> </tr> <tr> <td>25</td> <td>31</td> <td>19</td> <td>EM</td> <td>end of medium</td> </tr> <tr bgcolor="#eeeeff"> <td>26</td> <td>32</td> <td>1A</td> <td>SUB</td> <td>substitute</td> </tr> <tr> <td>27</td> <td>33</td> <td>1B</td> <td>ESC</td> <td>escape</td> </tr> <tr bgcolor="#eeeeff"> <td>28</td> <td>34</td> <td>1C</td> <td>FS</td> <td>file seperator</td> </tr> <tr> <td>29</td> <td>35</td> <td>1D</td> <td>GS</td> <td>group seperator</td> </tr> <tr bgcolor="#eeeeff"> <td>30</td> <td>36</td> <td>1E</td> <td>RS</td> <td>record seperator</td> </tr> <tr> <td>31</td> <td>37</td> <td>1F</td> <td>US</td> <td>unit seperator</td> </tr> <tr bgcolor="#eeeeff"> <td>32</td> <td>40</td> <td>20</td> <td>SPC</td> <td>space</td> </tr> <tr> <td>33</td> <td>41</td> <td>21</td> <td>!</td> <td> </td> </tr> <tr bgcolor="#eeeeff"> <td>34</td> <td>42</td> <td>22</td> <td>"</td> <td> </td> </tr> <tr> <td>35</td> <td>43</td> <td>23</td> <td>#</td> <td> </td> </tr> <tr bgcolor="#eeeeff"> <td>36</td> <td>44</td> <td>24</td> <td>$</td> <td> </td> </tr> <tr> <td>37</td> <td>45</td> <td>25</td> <td>%</td> <td> </td> </tr> <tr bgcolor="#eeeeff"> <td>38</td> <td>46</td> <td>26</td> <td>&</td> <td> </td> </tr> <tr> <td>39</td> <td>47</td> <td>27</td> <td>'</td> <td> </td> </tr> <tr bgcolor="#eeeeff"> <td>40</td> <td>50</td> <td>28</td> <td>(</td> <td> </td> </tr> <tr> <td>41</td> <td>51</td> <td>29</td> <td>)</td> <td> </td> </tr> <tr bgcolor="#eeeeff"> <td>42</td> <td>52</td> <td>2A</td> <td>*</td> <td> </td> </tr> <tr> <td>43</td> <td>53</td> <td>2B</td> <td>+</td> <td> </td> </tr> <tr bgcolor="#eeeeff"> <td>44</td> <td>54</td> <td>2C</td> <td>,</td> <td> </td> </tr> <tr> <td>45</td> <td>55</td> <td>2D</td> <td>-</td> <td> </td> </tr> <tr bgcolor="#eeeeff"> <td>46</td> <td>56</td> <td>2E</td> <td>.</td> <td> </td> </tr> <tr> <td>47</td> <td>57</td> <td>2F</td> <td>/</td> <td> </td> </tr> <tr bgcolor="#eeeeff"> <td>48</td> <td>60</td> <td>30</td> <td>0</td> <td> </td> </tr> <tr> <td>49</td> <td>61</td> <td>31</td> <td>1</td> <td> </td> </tr> <tr bgcolor="#eeeeff"> <td>50</td> <td>62</td> <td>32</td> <td>2</td> <td> </td> </tr> <tr> <td>51</td> <td>63</td> <td>33</td> <td>3</td> <td> </td> </tr> <tr bgcolor="#eeeeff"> <td>52</td> <td>64</td> <td>34</td> <td>4</td> <td> </td> </tr> <tr> <td>53</td> <td>65</td> <td>35</td> <td>5</td> <td> </td> </tr> <tr bgcolor="#eeeeff"> <td>54</td> <td>66</td> <td>36</td> <td>6</td> <td> </td> </tr> <tr> <td>55</td> <td>67</td> <td>37</td> <td>7</td> <td> </td> </tr> <tr bgcolor="#eeeeff"> <td>56</td> <td>70</td> <td>38</td> <td>8</td> <td> </td> </tr> <tr> <td>57</td> <td>71</td> <td>39</td> <td>9</td> <td> </td> </tr> <tr bgcolor="#eeeeff"> <td>58</td> <td>72</td> <td>3A</td> <td>:</td> <td> </td> </tr> <tr> <td>59</td> <td>73</td> <td>3B</td> <td>;</td> <td> </td> </tr> <tr bgcolor="#eeeeff"> <td>60</td> <td>74</td> <td>3C</td> <td><</td> <td> </td> </tr> <tr> <td>61</td> <td>75</td> <td>3D</td> <td>=</td> <td> </td> </tr> <tr bgcolor="#eeeeff"> <td>62</td> <td>76</td> <td>3E</td> <td>></td> <td> </td> </tr> <tr> <td>63</td> <td>77</td> <td>3F</td> <td>?</td> <td> </td> </tr> <tr bgcolor="#eeeeff"> <td>64</td> <td>100</td> <td>40</td> <td>@</td>⌨️ 快捷键说明
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