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  </table>
  <p style="tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt">功能：函数比较<i><span lang="EN-US">buffer1</span></i><span lang="EN-US"> 
  和 <i>buffer2</i>的前<i>count</i> 个字符。返回值如下:</span></p> 
  <table style="BACKGROUND: #eeeeff; mso-cellspacing: 1.5pt; mso-padding-alt: 0cm 0cm 0cm 0cm" cellPadding="0" bgColor="#eeeeff" border="0">
    <tbody>
      <tr>
        <td style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt">
          <p class="MsoNormal"><strong><span lang="EN-US">Value</span></strong><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体"><o:p>
          </o:p>
          </span></p>
        </td>
        <td style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt">
          <p class="MsoNormal"><strong><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">解释</span></strong><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体"><o:p>
          </o:p>
          </span></p>
        </td>
      </tr>
      <tr>
        <td style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt">
          <p class="MsoNormal"><span lang="EN-US">less than 0</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体"><o:p> 
          </o:p>
          </span></p>
        </td>
        <td style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt">
          <p class="MsoNormal"><span lang="EN-US">buffer1 is less than buffer2</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体"><o:p>
          </o:p>
          </span></p>
        </td>
      </tr>
      <tr>
        <td style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt">
          <p class="MsoNormal"><span lang="EN-US">equal to 0</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体"><o:p>
          </o:p>
          </span></p>
        </td>
        <td style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt">
          <p class="MsoNormal"><span lang="EN-US">buffer1 is equal to buffer2</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体"><o:p>
          </o:p>
          </span></p>
        </td>
      </tr>
      <tr>
        <td style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt">
          <p class="MsoNormal"><span lang="EN-US">greater than 0</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体"><o:p>
          </o:p>
          </span></p>
        </td>
        <td style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt">
          <p class="MsoNormal"><span lang="EN-US">buffer1 is greater than 
          buffer2</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体"><o:p>
          </o:p>
          </span></p>
        </td>
      </tr>
    </tbody>
  </table>
  <p style="tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><i>相关主题<span lang="EN-US">:</span></i><span lang="EN-US"><br>
  <strong><a href="#memchr">memchr()</a>, <a href="#memcpy">memcpy()</a>, and <a href="#strcmp">strcmp()</a>.</strong></span></p>
  <div class="MsoNormal" style="TEXT-ALIGN: center; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt" align="center">
    <span lang="EN-US">
    <hr align="center" width="100%" SIZE="2">
    </span>
  </div>
  <h2 style="tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><span lang="EN-US">
	<a name="memcpy">memcpy</a></span></h2>
  <p class="MsoNormal" style="tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><i><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">语法</span><span lang="EN-US">:</span></i></p>
  <table style="BACKGROUND: #ccccff; mso-cellspacing: 1.5pt; mso-padding-alt: 0cm 0cm 0cm 0cm" cellPadding="0" bgColor="#ccccff" border="0">
    <tbody>
      <tr>
        <td style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt">
          <pre><span lang="EN-US">&nbsp;<o:p>
</o:p>
</span></pre>
          <pre><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp; </span>#include &lt;string.h&gt;</span></pre>
          <pre><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp; </span>void *memcpy( void *to, const void *from, size_t count );</span></pre>
        </td>
      </tr>
    </tbody>
  </table>
  <p style="tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt">功能：函数从<i><span lang="EN-US">from</span></i>中复制<i><span lang="EN-US">count</span></i><span lang="EN-US"> 
  个字符到<i>to</i>中，并返回<i>to</i>指针。 如果<i>to</i> 和 <i>from</i>  
  重叠，则函数行为不确定。</span></p> 
  <p class="MsoNormal" style="tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><i><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">相关主题</span><span lang="EN-US">:</span></i><span lang="EN-US"><br>
  <strong><a href="#memmove">memmove()</a>.</strong></span></p>
  <div class="MsoNormal" style="TEXT-ALIGN: center; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt" align="center">
    <span lang="EN-US">
    <hr align="center" width="100%" SIZE="2">
    </span>
  </div>
  <h2 style="tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><span lang="EN-US">
	<a name="memmove">memmove</a></span></h2>
  <p class="MsoNormal" style="tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><i><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">语法</span><span lang="EN-US">:</span></i></p>
  <table style="BACKGROUND: #ccccff; mso-cellspacing: 1.5pt; mso-padding-alt: 0cm 0cm 0cm 0cm" cellPadding="0" bgColor="#ccccff" border="0">
    <tbody>
      <tr>
        <td style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt">
          <pre><span lang="EN-US">&nbsp;<o:p>
</o:p>
</span></pre>
          <pre><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp; </span>#include &lt;string.h&gt;</span></pre>
          <pre><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp; </span>void *memmove( void *to, const void *from, size_t count );</span></pre>
        </td>
      </tr>
    </tbody>
  </table>
  <p style="tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt">功能<span lang="EN-US">:  
  与mencpy相同，不同的是当<i>to</i> 和 <i>from</i>  
  重叠，函数正常仍能工作。</span></p> 
  <p class="MsoNormal" style="tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><i><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">相关主题</span><span lang="EN-US">:</span></i><span lang="EN-US"><br>
  <strong><a href="#memcpy">memcpy()</a>.</strong></span></p>
  <div class="MsoNormal" style="TEXT-ALIGN: center; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt" align="center">
    <span lang="EN-US">
    <hr align="center" width="100%" SIZE="2">
    </span>
  </div>
  <h2 style="tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><span lang="EN-US">
	<a name="memset">memset</a></span></h2>
  <p class="MsoNormal" style="tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><i><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">语法</span><span lang="EN-US">:</span></i></p>
  <table style="BACKGROUND: #ccccff; mso-cellspacing: 1.5pt; mso-padding-alt: 0cm 0cm 0cm 0cm" cellPadding="0" bgColor="#ccccff" border="0">
    <tbody>
      <tr>
        <td style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt">
          <pre><span lang="EN-US">&nbsp;<o:p>
</o:p>
</span></pre>
          <pre><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp; </span>#include &lt;string.h&gt;</span></pre>
          <pre><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp; </span>void *memset( void *buffer, int ch, size_t count );</span></pre>
        </td>
      </tr>
    </tbody>
  </table>
  <p style="tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt">功能<span lang="EN-US">:  
  函数拷贝<i>ch</i> 到<i>buffer</i> 从头开始的<i>count</i>  
  个字符里, 并返回<i>buffer</i>指针。 memset()  
  可以应用在将一段内存初始化为某个值。例如：</span></p>
  <pre><span lang="EN-US"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span>memset( the_array, '\0', sizeof(the_array) );</span></pre>
  <p style="tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt">这是将一个数组的所以分量设置成零的很便捷的方法。</p>
  <p class="MsoNormal" style="tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><i><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">相关主题</span><span lang="EN-US">:</span></i><span lang="EN-US"><br>
  <strong><a href="#memcmp">memcmp()</a>, <a href="#memcpy">memcpy()</a>, and <a href="#memmove">memmove()</a>.</strong></span></p>
  <div class="MsoNormal" style="TEXT-ALIGN: center; tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt" align="center">
    <span lang="EN-US">
    <hr align="center" width="100%" SIZE="2">
    </span>
  </div>
  <h2 style="tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><span lang="EN-US">
	<a name="strcat">strcat</a></span></h2>
  <p class="MsoNormal" style="tab-stops: 45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt"><i><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">语法</span><span lang="EN-US">:</span></i></p>
  <table style="BACKGROUND: #ccccff; mso-cellspacing: 1.5pt; mso-padding-alt: 0cm 0cm 0cm 0cm" cellPadding="0" bgColor="#ccccff" border="0">
    <tbody>
      <tr>
        <td style="PADDING-RIGHT: 0.75pt; PADDING-LEFT: 0.75pt; PADDING-BOTTOM: 0.75pt; PADDING-TOP: 0.75pt">
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