记录时间的几种方法代码,C代码库,德仔网

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【C】记录时间的几种方法
作者:Dezai.CN / 发布于2011/9/4/ 781
<div><span style="color: rgb(0,0,0)">#include </span><span style="color: rgb(0,0,0)"><</span><span style="color: rgb(0,0,0)">time.h</span><span style="color: rgb(0,0,0)">></span><span style="color: rgb(0,0,0)">
#include </span><span style="color: rgb(0,0,0)"><</span><span style="color: rgb(0,0,0)">stdio.h</span><span style="color: rgb(0,0,0)">></span><span style="color: rgb(0,0,0)">
</span><span style="color: rgb(0,0,255)">void</span><span style="color: rgb(0,0,0)"> main( </span><span style="color: rgb(0,0,255)">void</span><span style="color: rgb(0,0,0)"> )
{
time_t ltime;
time( &lt</span><span style="color: rgb(0,0,0)">ime );
printf( </span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(128,0,0)">The time is %s\n</span><span style="color: rgb(128,0,0)">"</span><span style="color: rgb(0,0,0)">, ctime(&lt</span><span style="color: rgb(0,0,0)">ime ) );
}</span></div>
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<table>
    <tbody>
        <tr>
            <td class="content">"cpp keyword bold"><font color="#006699">struct</font> "cpp plain">timeval start;</td>
        </tr>
    </tbody>
</table>
<div class="line alt2">
<table>
    <tbody>
        <tr>
            <td class="content">"cpp keyword bold"><font color="#006699">struct</font> "cpp plain">timeval end;</td>
        </tr>
    </tbody>
</table>
</div>
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<table>
    <tbody>
        <tr>
            <td class="content">"cpp color1 bold"><font color="#808080">float</font> "cpp plain">time_use = 0;</td>
        </tr>
    </tbody>
</table>
</div>
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<table>
    <tbody>
        <tr>
            <td class="content">"cpp plain">gettimeofday(&start,NULL); </td>
        </tr>
    </tbody>
</table>
</div>
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<table>
    <tbody>
        <tr>
            <td class="content">"cpp comments"><font color="#008200">//do some operation</font></td>
        </tr>
    </tbody>
</table>
</div>
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<table>
    <tbody>
        <tr>
            <td class="content">"cpp plain">gettimeofday(&end,NULL);</td>
        </tr>
    </tbody>
</table>
</div>
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<table>
    <tbody>
        <tr>
            <td class="content">"cpp plain">time_use = end.tv_sec - start.tv_sec; "cpp comments"><font color="#008200">//in sec</font></td>
        </tr>
    </tbody>
</table>
<div></div>
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<div>
<table>
    <tbody>
        <tr>
            <td class="content">"cpp keyword bold"><font color="#006699">struct</font> "cpp color1 bold"><font color="#808080">tm</font> "cpp plain">*local;</td>
        </tr>
    </tbody>
</table>
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<table>
    <tbody>
        <tr>
            <td class="content">"cpp color1 bold"><font color="#808080">time_t</font> "cpp plain">t;</td>
        </tr>
    </tbody>
</table>
</div>
<div class="line alt1">
<table>
    <tbody>
        <tr>
            <td class="content">"cpp functions bold"><font color="#ff1493">time</font>"cpp plain">(&t);</td>
        </tr>
    </tbody>
</table>
</div>
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<table>
    <tbody>
        <tr>
            <td class="content">"cpp plain">local="cpp functions bold"><font color="#ff1493">localtime</font>"cpp plain">(&t);</td>
        </tr>
    </tbody>
</table>
</div>
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<table>
    <tbody>
        <tr>
            <td class="content">"cpp color1 bold"><font color="#808080">char</font> "cpp functions bold"><font color="#ff1493">ctime</font>"cpp plain">[30];</td>
        </tr>
    </tbody>
</table>
</div>
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<table>
    <tbody>
        <tr>
            <td class="content">"cpp functions bold"><font color="#ff1493">memset</font>"cpp plain">("cpp functions bold"><font color="#ff1493">ctime</font>"cpp plain">, 0, 30);</td>
        </tr>
    </tbody>
</table>
</div>
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<table>
    <tbody>
        <tr>
            <td class="content">"cpp functions bold"><font color="#ff1493">sprintf</font>"cpp plain">("cpp functions bold"><font color="#ff1493">time</font>"cpp plain">, "cpp string"><font color="#0000ff">"[%d:%d:%d]"</font>"cpp plain">,local->tm_hour, local->tm_min, local->tm_sec);</td>
        </tr>
    </tbody>
</table>
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    <tbody>
        <tr>
            <td class="content">"cpp plain">cout << "cpp functions bold"><font color="#ff1493">time</font>"cpp plain">;</td>
        </tr>
    </tbody>
</table>
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