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Merge pull request #25 from hentaicreep/patch-13

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3.11章节图表错位修复
This commit is contained in:
Xiaoke Zhang
2017-04-05 14:27:46 +08:00
committed by GitHub
parent 6f5572dd81 43f36fea5c
commit 53bbbcbb45
1 changed files with 67 additions and 0 deletions
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mqtt/0311-UNSUBACK.md
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@@ -13,6 +13,51 @@
| byte 2 | 剩余长度 (2) |
| | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
<table style="text-align:center">
<tr>
<td align="center"><strong>Bit</strong></td>
<td align="center"><strong>7</strong></td>
<td align="center"><strong>6</strong></td>
<td align="center"><strong>5</strong></td>
<td align="center"><strong>4</strong></td>
<td align="center"><strong>3</strong></td>
<td align="center"><strong>2</strong></td>
<td align="center"><strong>1</strong></td>
<td align="center"><strong>0</strong></td>
</tr>
<tr>
<td>byte 1</td>
<td colspan="4" align="center">MQTT控制报文类型 (11)</td>
<td colspan="4" align="center">保留位</td>
</tr>
<tr>
<td></td>
<td align="center">1</td>
<td align="center">0</td>
<td align="center">1</td>
<td align="center">1</td>
<td align="center">0</td>
<td align="center">0</td>
<td align="center">0</td>
<td align="center">0</td>
</tr>
<tr>
<td>byte 2</td>
<td colspan="8" align="center">剩余长度 (2)</td>
</tr>
<tr>
<td></td>
<td align="center">0</td>
<td align="center">0</td>
<td align="center">0</td>
<td align="center">0</td>
<td align="center">0</td>
<td align="center">0</td>
<td align="center">1</td>
<td align="center">0</td>
</tr>
</table>
**剩余长度字段**
表示可变报头的长度，对UNSUBACK报文这个值等于2。
@@ -28,6 +73,28 @@
| byte 1 | 报文标识符 MSB |
| byte 2 | 报文标识符 LSB |
<table style="text-align:center">
<tr>
<td align="center"><strong>Bit</strong></td>
<td align="center"><strong>7</strong></td>
<td align="center"><strong>6</strong></td>
<td align="center"><strong>5</strong></td>
<td align="center"><strong>4</strong></td>
<td align="center"><strong>3</strong></td>
<td align="center"><strong>2</strong></td>
<td align="center"><strong>1</strong></td>
<td align="center"><strong>0</strong></td>
</tr>
<tr>
<td>byte 1</td>
<td colspan="8" align="center">报文标识符 MSB</td>
</tr>
<tr>
<td>byte 2</td>
<td colspan="8" align="center">报文标识符 LSB</td>
</tr>
</table>
### 3.11.3 有效载荷
UNSUBACK报文没有有效载荷。