bilibiliC++06关键字-C++常用的编程关键字

向右看齐 2022-11-19 07:47 199阅读 0赞

### 1.5 关键字 ###

作用：关键字是C++中预先保留的单词（标识符）  
**在定义变量或者常量时候，不要用关键字**  
C++关键字如下：

<table> 
 <thead> 
  <tr> 
   <th>asm</th> 
   <th>do</th> 
   <th>if</th> 
   <th>return</th> 
   <th>typedef</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>auto</td> 
   <td>double</td> 
   <td>inline</td> 
   <td>short</td> 
   <td>typeid</td> 
  </tr> 
  <tr> 
   <td>bool</td> 
   <td>dynamic_cast</td> 
   <td>int</td> 
   <td>signed</td> 
   <td>typename</td> 
  </tr> 
  <tr> 
   <td>break</td> 
   <td>else</td> 
   <td>long</td> 
   <td>sizeof</td> 
   <td>union</td> 
  </tr> 
  <tr> 
   <td>case</td> 
   <td>enum</td> 
   <td>mutable</td> 
   <td>static</td> 
   <td>unsigned</td> 
  </tr> 
  <tr> 
   <td>catch</td> 
   <td>explicit</td> 
   <td>namespace</td> 
   <td>static_cast</td> 
   <td>using</td> 
  </tr> 
  <tr> 
   <td>char</td> 
   <td>export</td> 
   <td>new</td> 
   <td>struct</td> 
   <td>virtual</td> 
  </tr> 
  <tr> 
   <td>class</td> 
   <td>extern</td> 
   <td>operator</td> 
   <td>switch</td> 
   <td>void</td> 
  </tr> 
  <tr> 
   <td>const</td> 
   <td>false</td> 
   <td>private</td> 
   <td>template</td> 
   <td>volatile</td> 
  </tr> 
  <tr> 
   <td>const_cast</td> 
   <td>float</td> 
   <td>protected</td> 
   <td>this</td> 
   <td>wchar_t</td> 
  </tr> 
  <tr> 
   <td>continue</td> 
   <td>for</td> 
   <td>public</td> 
   <td>throw</td> 
   <td>while</td> 
  </tr> 
  <tr> 
   <td>default</td> 
   <td>friend</td> 
   <td>register</td> 
   <td>true</td> 
   <td></td> 
  </tr> 
  <tr> 
   <td>delete</td> 
   <td>goto</td> 
   <td>reinterpret_cast</td> 
   <td>try</td> 
   <td></td> 
  </tr> 
 </tbody> 
</table>

`提示：在给变量或者常量起名称时候，不要用C++得关键字，否则会产生歧义。`