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<?xml version="1.0" encoding="utf-8"?>
<search>
<entry>
<title>今天我们说相声</title>
<link href="/2021/01/02/%E5%85%83%E6%97%A6%E5%BF%AB%E4%B9%90/"/>
<url>/2021/01/02/%E5%85%83%E6%97%A6%E5%BF%AB%E4%B9%90/</url>
<content type="html"><![CDATA[<h1 id="今天我们说相声"><a href="#今天我们说相声" class="headerlink" title="今天我们说相声"></a>今天我们说相声</h1><p>又是新的一年——2021年来临了！</p><p>两年前，我们曾登上元旦的大舞台，</p><p>两年后，我们再次站到了舞台上，</p><p>演绎着同一个节目——“今天我们说相声”</p><a id="more"></a><h2 id="初一"><a href="#初一" class="headerlink" title="初一"></a>初一</h2><script src='//player.polyv.net/script/polyvplayer.min.js'></script><div id='plv_c995f53a6e22f72713b29c1b16f8e8c5_c'></div><script>var player = polyvObject('#plv_c995f53a6e22f72713b29c1b16f8e8c5_c').videoPlayer({ 'width':'300', 'height':'170', 'vid' : 'c995f53a6e22f72713b29c1b16f8e8c5_c' , 'forceH5':true });</script><script src='//player.polyv.net/script/polyvplayer.min.js'></script><div id='plv_c995f53a6e70096ae81775af0764aa19_c'></div><script>var player = polyvObject('#plv_c995f53a6e70096ae81775af0764aa19_c').videoPlayer({ 'width':'300', 'height':'173', 'vid' : 'c995f53a6e70096ae81775af0764aa19_c' , 'forceH5':true });</script><script src='//player.polyv.net/script/polyvplayer.min.js'></script><div id='plv_c995f53a6eb7734a1be94326a06817d9_c'></div><script>var player = polyvObject('#plv_c995f53a6eb7734a1be94326a06817d9_c').videoPlayer({ 'width':'300', 'height':'173', 'vid' : 'c995f53a6eb7734a1be94326a06817d9_c' , 'forceH5':true });</script><script src='//player.polyv.net/script/polyvplayer.min.js'></script><div id='plv_c995f53a6ec170b8e0b50a9d0e1e4aee_c'></div><script>var player = polyvObject('#plv_c995f53a6ec170b8e0b50a9d0e1e4aee_c').videoPlayer({ 'width':'300', 'height':'173', 'vid' : 'c995f53a6ec170b8e0b50a9d0e1e4aee_c' , 'forceH5':true });</script><h2 id="初三"><a href="#初三" class="headerlink" title="初三"></a>初三</h2><script src='//player.polyv.net/script/polyvplayer.min.js'></script><div id='plv_c995f53a6e7587c35635ea501f7ab932_c'></div><script>var player = polyvObject('#plv_c995f53a6e7587c35635ea501f7ab932_c').videoPlayer({ 'width':'300', 'height':'173', 'vid' : 'c995f53a6e7587c35635ea501f7ab932_c' , 'forceH5':true });</script><script src='//player.polyv.net/script/polyvplayer.min.js'></script><div id='plv_c995f53a6e783a1177b6afd35c628848_c'></div><script>var player = polyvObject('#plv_c995f53a6e783a1177b6afd35c628848_c').videoPlayer({ 'width':'300', 'height':'140', 'vid' : 'c995f53a6e783a1177b6afd35c628848_c' , 'forceH5':true });</script><script src='//player.polyv.net/script/polyvplayer.min.js'></script><div id='plv_c995f53a6ed0120feb540cc23c35bcb9_c'></div><script>var player = polyvObject('#plv_c995f53a6ed0120feb540cc23c35bcb9_c').videoPlayer({ 'width':'300', 'height':'169', 'vid' : 'c995f53a6ed0120feb540cc23c35bcb9_c' , 'forceH5':true });</script><script src='//player.polyv.net/script/polyvplayer.min.js'></script><div id='plv_c995f53a6e97a3486f5853f55a2b5392_c'></div><script>var player = polyvObject('#plv_c995f53a6e97a3486f5853f55a2b5392_c').videoPlayer({ 'width':'300', 'height':'169', 'vid' : 'c995f53a6e97a3486f5853f55a2b5392_c' , 'forceH5':true });</script><script src='//player.polyv.net/script/polyvplayer.min.js'></script><div id='plv_c995f53a6e9c1e7563454c86cf0bbc14_c'></div><script>var player = polyvObject('#plv_c995f53a6e9c1e7563454c86cf0bbc14_c').videoPlayer({ 'width':'300', 'height':'169', 'vid' : 'c995f53a6e9c1e7563454c86cf0bbc14_c' , 'forceH5':true });</script><script src='//player.polyv.net/script/polyvplayer.min.js'></script><div id='plv_c995f53a6e007ca187e72e3d6bb36d3b_c'></div><script>var player = polyvObject('#plv_c995f53a6e007ca187e72e3d6bb36d3b_c').videoPlayer({ 'width':'300', 'height':'169', 'vid' : 'c995f53a6e007ca187e72e3d6bb36d3b_c' , 'forceH5':true });</script><p><strong><em>祝大家在新的一年里阖家欢乐，事业有成！</em></strong></p>]]></content>
<categories>
<category>日常</category>
</categories>
<tags>
<tag>日常</tag>
</tags>
</entry>
<entry>
<title>C语言获取本机IP地址</title>
<link href="/2020/12/19/C%E8%AF%AD%E8%A8%80%E8%8E%B7%E5%8F%96%E6%9C%AC%E6%9C%BAIP%E5%9C%B0%E5%9D%80/"/>
<url>/2020/12/19/C%E8%AF%AD%E8%A8%80%E8%8E%B7%E5%8F%96%E6%9C%AC%E6%9C%BAIP%E5%9C%B0%E5%9D%80/</url>
<content type="html"><![CDATA[<h1 id="C语言获取本机IP地址"><a href="#C语言获取本机IP地址" class="headerlink" title="C语言获取本机IP地址"></a>C语言获取本机IP地址</h1><h2 id="函数"><a href="#函数" class="headerlink" title="函数"></a>函数</h2><p>C语言获取本机IP地址的函数如下：</p><a id="more"></a><figure class="highlight arduino"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br></pre></td><td class="code"><pre class=" language-hljs arduino"><span class="hljs-function"><span class="hljs-keyword">void</span> <span class="hljs-title">findIP</span><span class="hljs-params">(<span class="hljs-keyword">char</span> *ip, <span class="hljs-keyword">int</span> <span class="hljs-built_in">size</span>)</span></span><br><span class="hljs-function"></span>{<br><span class="hljs-class"><span class="hljs-keyword">struct</span> <span class="hljs-title">hostent</span> *<span class="hljs-title">phostinfo</span> =</span> gethostbyname(<span class="hljs-string">""</span>);<br><span class="hljs-keyword">char</span> *p = inet_ntoa(*((struct in_addr *)(*phostinfo->h_addr_list)));<br><span class="hljs-built_in">strncpy</span>(ip, p, <span class="hljs-built_in">size</span> - <span class="hljs-number">1</span>);<br>ip[<span class="hljs-built_in">size</span> - <span class="hljs-number">1</span>] = <span class="hljs-string"><code class="language-hljs arduino"><span class="hljs-function"><span class="hljs-keyword">void</span> <span class="hljs-title">findIP</span><span class="hljs-params">(<span class="hljs-keyword">char</span> *ip, <span class="hljs-keyword">int</span> <span class="hljs-built_in">size</span>)</span></span><br><span class="hljs-function"></span>{<br><span class="hljs-class"><span class="hljs-keyword">struct</span> <span class="hljs-title">hostent</span> *<span class="hljs-title">phostinfo</span> =</span> gethostbyname(<span class="hljs-string">""</span>);<br><span class="hljs-keyword">char</span> *p = inet_ntoa(*((struct in_addr *)(*phostinfo->h_addr_list)));<br><span class="hljs-built_in">strncpy</span>(ip, p, <span class="hljs-built_in">size</span> - <span class="hljs-number">1</span>);<br>ip[<span class="hljs-built_in">size</span> - <span class="hljs-number">1</span>] = <span class="hljs-string">'\0'</span>;<br>}<br></code></pre></td></tr></table></figure><p>使用此函数需要在开头加上：</p><figure class="highlight autoit"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre class=" language-hljs autoit"><span class="hljs-meta">#<span class="hljs-meta-keyword">include</span> <span class="hljs-meta-string"><winsock2.h></span></span><br><span class="hljs-meta">#<span class="hljs-meta-keyword">pragma</span> common(lib, <span class="hljs-string"><code class="language-hljs autoit"><span class="hljs-meta">#<span class="hljs-meta-keyword">include</span> <span class="hljs-meta-string"><winsock2.h></span></span><br><span class="hljs-meta">#<span class="hljs-meta-keyword">pragma</span> common(lib, <span class="hljs-string">"ws2_32.lib"</span>)</span><br></code></pre></td></tr></table></figure><p>并且应在函数调用前写如下代码：</p><figure class="highlight lisp"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre class=" language-hljs lisp">WSADATA wsaData<span class="hljs-comment">;</span><br>WSAStartup(<span class="hljs-name">MAKEWORD</span>(<span class="hljs-number">2</span>, <span class="hljs-number">2</span>), (<span class="hljs-name">LPWSADATA</span>)<span class="hljs-symbol">&wsaData</span>)<span class="hljs-comment"><code class="language-hljs lisp">WSADATA wsaData<span class="hljs-comment">;</span><br>WSAStartup(<span class="hljs-name">MAKEWORD</span>(<span class="hljs-number">2</span>, <span class="hljs-number">2</span>), (<span class="hljs-name">LPWSADATA</span>)<span class="hljs-symbol">&wsaData</span>)<span class="hljs-comment">;</span><br></code></pre></td></tr></table></figure><p>函数调用后：</p><figure class="highlight abnf"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre class=" language-hljs abnf">WSACleanup()<span class="hljs-comment"><code class="language-hljs abnf">WSACleanup()<span class="hljs-comment">;</span><br></code></pre></td></tr></table></figure><h2 id="调用实例"><a href="#调用实例" class="headerlink" title="调用实例"></a>调用实例</h2><figure class="highlight arduino"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br></pre></td><td class="code"><pre class=" language-hljs arduino"><span class="hljs-meta">#<span class="hljs-meta-keyword">include</span><span class="hljs-meta-string"><stdio.h></span></span><br><span class="hljs-meta">#<span class="hljs-meta-keyword">include</span><span class="hljs-meta-string"><winsock2.h></span></span><br><span class="hljs-meta">#<span class="hljs-meta-keyword">pragma</span> comment(lib,<span class="hljs-meta-string">"ws2_32.lib"</span>) <span class="hljs-comment">// 静态库</span></span><br> <br><span class="hljs-function"><span class="hljs-keyword">void</span> <span class="hljs-title">findIP</span><span class="hljs-params">(<span class="hljs-keyword">char</span> *ip, <span class="hljs-keyword">int</span> <span class="hljs-built_in">size</span>)</span> </span><br><span class="hljs-function"></span>{<br><span class="hljs-class"><span class="hljs-keyword">struct</span> <span class="hljs-title">hostent</span> *<span class="hljs-title">phostinfo</span> =</span> gethostbyname(<span class="hljs-string">""</span>);<br><span class="hljs-keyword">char</span> *p = inet_ntoa (* ((struct in_addr *)(*phostinfo->h_addr_list)) ); <br><span class="hljs-built_in">strncpy</span>(ip, p, <span class="hljs-built_in">size</span> - <span class="hljs-number">1</span>);<br>ip[<span class="hljs-built_in">size</span> - <span class="hljs-number">1</span>] = <span class="hljs-string">'\0'</span>;<br>} <br> <br><span class="hljs-function"><span class="hljs-keyword">int</span> <span class="hljs-title">main</span><span class="hljs-params">()</span></span><br><span class="hljs-function"></span>{<br>WSADATA wsaData;<br> WSAStartup(MAKEWORD(<span class="hljs-number">2</span>, <span class="hljs-number">2</span>), (LPWSADATA)&wsaData);<br> <span class="hljs-keyword">char</span> ip[<span class="hljs-number">20</span>] = {<span class="hljs-number">0</span>};<br> findIP(ip, <span class="hljs-keyword">sizeof</span>(ip));<br> <span class="hljs-built_in">printf</span>(<span class="hljs-string">"%s\n"</span>, ip);<br> WSACleanup( );<br> <span class="hljs-keyword">return</span> <span class="hljs-number"><code class="language-hljs arduino"><span class="hljs-meta">#<span class="hljs-meta-keyword">include</span><span class="hljs-meta-string"><stdio.h></span></span><br><span class="hljs-meta">#<span class="hljs-meta-keyword">include</span><span class="hljs-meta-string"><winsock2.h></span></span><br><span class="hljs-meta">#<span class="hljs-meta-keyword">pragma</span> comment(lib,<span class="hljs-meta-string">"ws2_32.lib"</span>) <span class="hljs-comment">// 静态库</span></span><br> <br><span class="hljs-function"><span class="hljs-keyword">void</span> <span class="hljs-title">findIP</span><span class="hljs-params">(<span class="hljs-keyword">char</span> *ip, <span class="hljs-keyword">int</span> <span class="hljs-built_in">size</span>)</span> </span><br><span class="hljs-function"></span>{<br><span class="hljs-class"><span class="hljs-keyword">struct</span> <span class="hljs-title">hostent</span> *<span class="hljs-title">phostinfo</span> =</span> gethostbyname(<span class="hljs-string">""</span>);<br><span class="hljs-keyword">char</span> *p = inet_ntoa (* ((struct in_addr *)(*phostinfo->h_addr_list)) ); <br><span class="hljs-built_in">strncpy</span>(ip, p, <span class="hljs-built_in">size</span> - <span class="hljs-number">1</span>);<br>ip[<span class="hljs-built_in">size</span> - <span class="hljs-number">1</span>] = <span class="hljs-string">'\0'</span>;<br>} <br> <br><span class="hljs-function"><span class="hljs-keyword">int</span> <span class="hljs-title">main</span><span class="hljs-params">()</span></span><br><span class="hljs-function"></span>{<br>WSADATA wsaData;<br> WSAStartup(MAKEWORD(<span class="hljs-number">2</span>, <span class="hljs-number">2</span>), (LPWSADATA)&wsaData);<br> <span class="hljs-keyword">char</span> ip[<span class="hljs-number">20</span>] = {<span class="hljs-number">0</span>};<br> findIP(ip, <span class="hljs-keyword">sizeof</span>(ip));<br> <span class="hljs-built_in">printf</span>(<span class="hljs-string">"%s\n"</span>, ip);<br> WSACleanup( );<br> <span class="hljs-keyword">return</span> <span class="hljs-number">0</span>;<br>}<br></code></pre></td></tr></table></figure>]]></content>
<categories>
<category>C语言</category>
</categories>
<tags>
<tag>C语言</tag>
</tags>
</entry>
<entry>
<title>vs2013编译的程序无法在其它电脑运行</title>
<link href="/2020/12/12/vs2013%E7%BC%96%E8%AF%91%E7%9A%84%E7%A8%8B%E5%BA%8F%E6%97%A0%E6%B3%95%E5%9C%A8%E5%85%B6%E5%AE%83%E7%94%B5%E8%84%91%E8%BF%90%E8%A1%8C/"/>
<url>/2020/12/12/vs2013%E7%BC%96%E8%AF%91%E7%9A%84%E7%A8%8B%E5%BA%8F%E6%97%A0%E6%B3%95%E5%9C%A8%E5%85%B6%E5%AE%83%E7%94%B5%E8%84%91%E8%BF%90%E8%A1%8C/</url>
<content type="html"><![CDATA[<h1 id="解决Win7下vs2013编译的程序无法在其他电脑中运行"><a href="#解决Win7下vs2013编译的程序无法在其他电脑中运行" class="headerlink" title="解决Win7下vs2013编译的程序无法在其他电脑中运行"></a>解决Win7下vs2013编译的程序无法在其他电脑中运行</h1><a id="more"></a><p>Win7系统中vs2013中编译的程序无法在其他电脑中运行，提示不是有效的32位应用程序或提示缺失某dll文件：</p><p><img src="https://wangyucan1.gitee.io/2020/12/12/vs2013%E7%BC%96%E8%AF%91%E7%9A%84%E7%A8%8B%E5%BA%8F%E6%97%A0%E6%B3%95%E5%9C%A8%E5%85%B6%E5%AE%83%E7%94%B5%E8%84%91%E8%BF%90%E8%A1%8C/wufayunxing1.png"><br><img src="https://wangyucan1.gitee.io/2020/12/12/vs2013%E7%BC%96%E8%AF%91%E7%9A%84%E7%A8%8B%E5%BA%8F%E6%97%A0%E6%B3%95%E5%9C%A8%E5%85%B6%E5%AE%83%E7%94%B5%E8%84%91%E8%BF%90%E8%A1%8C/wufayunxing5.png"></p><h2 id="解决方法"><a href="#解决方法" class="headerlink" title="解决方法"></a>解决方法</h2><ol><li><p>右键项目名称单击“属性”：<br><img src="https://wangyucan1.gitee.io/2020/12/12/vs2013%E7%BC%96%E8%AF%91%E7%9A%84%E7%A8%8B%E5%BA%8F%E6%97%A0%E6%B3%95%E5%9C%A8%E5%85%B6%E5%AE%83%E7%94%B5%E8%84%91%E8%BF%90%E8%A1%8C/wufayunxing3.png"></p></li><li><p>点击“常规”，修改平台工作集为：Visual Studio 2013 - Windows XP（v120_xp）<br><img src="https://wangyucan1.gitee.io/2020/12/12/vs2013%E7%BC%96%E8%AF%91%E7%9A%84%E7%A8%8B%E5%BA%8F%E6%97%A0%E6%B3%95%E5%9C%A8%E5%85%B6%E5%AE%83%E7%94%B5%E8%84%91%E8%BF%90%E8%A1%8C/wufayunxing2.png"></p></li><li><p>单击“C/C++”->“代码生成”，修改运行库为：多线程（/MT），单击确定<br><img src="https://wangyucan1.gitee.io/2020/12/12/vs2013%E7%BC%96%E8%AF%91%E7%9A%84%E7%A8%8B%E5%BA%8F%E6%97%A0%E6%B3%95%E5%9C%A8%E5%85%B6%E5%AE%83%E7%94%B5%E8%84%91%E8%BF%90%E8%A1%8C/wufayunxing4.png"></p></li></ol><p>再次编译程序，此时，程序可支持：</p><ul><li>WindowsXP</li><li>Windows7</li><li>Windows10</li><li>……</li></ul>]]></content>
<categories>
<category>C语言</category>
</categories>
<tags>
<tag>C语言</tag>
<tag>vs2013</tag>
</tags>
</entry>
<entry>
<title>C语言三角函数及弧度与角度的转换</title>
<link href="/2020/12/12/%E4%B8%89%E8%A7%92%E5%87%BD%E6%95%B0/"/>
<url>/2020/12/12/%E4%B8%89%E8%A7%92%E5%87%BD%E6%95%B0/</url>
<content type="html"><![CDATA[<h1 id="C语言转换弧度与角度及三角函数的应用"><a href="#C语言转换弧度与角度及三角函数的应用" class="headerlink" title="C语言转换弧度与角度及三角函数的应用"></a>C语言转换弧度与角度及三角函数的应用</h1><p>今天发现数学卷上有这样一道题目：</p><p><img src="https://wangyucan1.gitee.io/2020/12/12/%E4%B8%89%E8%A7%92%E5%87%BD%E6%95%B0/three1.png" alt="三角函数"></p><p>于是打算用C语言写一个这样的程序。</p><a id="more"></a><p>最终代码如下：</p><figure class="highlight cpp"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br></pre></td><td class="code"><pre class=" language-hljs cpp"><span class="hljs-meta">#<span class="hljs-meta-keyword">include</span> <span class="hljs-meta-string"><stdio.h></span></span><br><span class="hljs-meta">#<span class="hljs-meta-keyword">include</span> <span class="hljs-meta-string"><math.h></span></span><br><br><span class="hljs-meta">#<span class="hljs-meta-keyword">define</span> PI 3.1415926535<span class="hljs-comment">//定义π的值 </span></span><br><br><span class="hljs-function"><span class="hljs-keyword">int</span> <span class="hljs-title">main</span><span class="hljs-params">(<span class="hljs-keyword">int</span> argc, <span class="hljs-keyword">char</span> *argv[])</span></span><br><span class="hljs-function"></span>{<br><span class="hljs-keyword">double</span> alpha, beta, y;<br><span class="hljs-built_in">printf</span>(<span class="hljs-string">"请输入α的值："</span>);<br><span class="hljs-built_in">scanf</span>(<span class="hljs-string">"%lf"</span>, &alpha);<br><span class="hljs-built_in">printf</span>(<span class="hljs-string">"请输入β的值："</span>);<br><span class="hljs-built_in">scanf</span>(<span class="hljs-string">"%lf"</span>, &beta);<br><span class="hljs-keyword">if</span> (alpha >= beta)<br>y = <span class="hljs-built_in">sin</span>(PI * (alpha / <span class="hljs-number">180</span>));<span class="hljs-comment">//将角度转换为弧度并求出正弦值 </span><br><span class="hljs-keyword">else</span><br>y = <span class="hljs-built_in">cos</span>(PI * (beta / <span class="hljs-number">180</span>));<span class="hljs-comment">//将角度转换为弧度并求出余弦值</span><br><span class="hljs-built_in">printf</span>(<span class="hljs-string">"y的值为：%.2lf"</span>, y);<br>getchar();<br>getchar();<br><span class="hljs-keyword">return</span> <span class="hljs-number"><code class="language-hljs cpp"><span class="hljs-meta">#<span class="hljs-meta-keyword">include</span> <span class="hljs-meta-string"><stdio.h></span></span><br><span class="hljs-meta">#<span class="hljs-meta-keyword">include</span> <span class="hljs-meta-string"><math.h></span></span><br><br><span class="hljs-meta">#<span class="hljs-meta-keyword">define</span> PI 3.1415926535<span class="hljs-comment">//定义π的值 </span></span><br><br><span class="hljs-function"><span class="hljs-keyword">int</span> <span class="hljs-title">main</span><span class="hljs-params">(<span class="hljs-keyword">int</span> argc, <span class="hljs-keyword">char</span> *argv[])</span></span><br><span class="hljs-function"></span>{<br><span class="hljs-keyword">double</span> alpha, beta, y;<br><span class="hljs-built_in">printf</span>(<span class="hljs-string">"请输入α的值："</span>);<br><span class="hljs-built_in">scanf</span>(<span class="hljs-string">"%lf"</span>, &alpha);<br><span class="hljs-built_in">printf</span>(<span class="hljs-string">"请输入β的值："</span>);<br><span class="hljs-built_in">scanf</span>(<span class="hljs-string">"%lf"</span>, &beta);<br><span class="hljs-keyword">if</span> (alpha >= beta)<br>y = <span class="hljs-built_in">sin</span>(PI * (alpha / <span class="hljs-number">180</span>));<span class="hljs-comment">//将角度转换为弧度并求出正弦值 </span><br><span class="hljs-keyword">else</span><br>y = <span class="hljs-built_in">cos</span>(PI * (beta / <span class="hljs-number">180</span>));<span class="hljs-comment">//将角度转换为弧度并求出余弦值</span><br><span class="hljs-built_in">printf</span>(<span class="hljs-string">"y的值为：%.2lf"</span>, y);<br>getchar();<br>getchar();<br><span class="hljs-keyword">return</span> <span class="hljs-number">0</span>;<br>}<br></code></pre></td></tr></table></figure><p>运行结果如下：</p><p><img src="https://wangyucan1.gitee.io/2020/12/12/%E4%B8%89%E8%A7%92%E5%87%BD%E6%95%B0/three2.png" alt="运行结果"></p><h2 id="弧度"><a href="#弧度" class="headerlink" title="弧度"></a>弧度</h2><h3 id="概念"><a href="#概念" class="headerlink" title="概念"></a>概念</h3><p>一周的弧度数为 2πr / r= 2π，</p><p>即<strong>360°角=2π弧度</strong></p><h3 id="与角度的转换"><a href="#与角度的转换" class="headerlink" title="与角度的转换"></a>与角度的转换</h3><p>让角度除以360得出角度占圆的份数</p><p>再乘以2π得出弧度</p><p>整理：2π* (角度 / 360 )</p><p>可化简为：<strong>π * (角度 / 180)</strong></p><p>如下代码为30°角的弧度：</p><figure class="highlight angelscript"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre class=" language-hljs angelscript"><span class="hljs-number">3.14</span> * (<span class="hljs-number">30</span> / <span class="hljs-number"><code class="language-hljs angelscript"><span class="hljs-number">3.14</span> * (<span class="hljs-number">30</span> / <span class="hljs-number">360</span>)<br></code></pre></td></tr></table></figure><h2 id="三角函数"><a href="#三角函数" class="headerlink" title="三角函数"></a>三角函数</h2><h3 id="sin-函数"><a href="#sin-函数" class="headerlink" title="sin()函数"></a>sin()函数</h3><p>函数声明：<em>sin(double x);</em></p><p>用途：返回传入的弧度x的正弦值</p><h3 id="cos-函数"><a href="#cos-函数" class="headerlink" title="cos()函数"></a>cos()函数</h3><p>函数声明：<em>cos(double y);</em></p><p>用途：返回传入的弧度x的余弦值</p><h3 id="tan-函数"><a href="#tan-函数" class="headerlink" title="tan()函数"></a>tan()函数</h3><p>函数声明：<em>tan(double x);</em></p><p>用途：返回传入的弧度x的正切值</p><p>如下代码获取30°角的正切值：</p><figure class="highlight apache"><table><tr><td class="gutter"><pre><span class="line">1</span><br></pre></td><td class="code"><pre class=" language-hljs apache"><span class="hljs-attribute">double</span> tan<span class="hljs-number">30</span> = tan(<span class="hljs-number">3</span>.<span class="hljs-number">14</span> * (<span class="hljs-number">30</span> / <span class="hljs-number"><code class="language-hljs apache"><span class="hljs-attribute">double</span> tan<span class="hljs-number">30</span> = tan(<span class="hljs-number">3</span>.<span class="hljs-number">14</span> * (<span class="hljs-number">30</span> / <span class="hljs-number">180</span>));<br></code></pre></td></tr></table></figure>]]></content>
<categories>
<category>C语言</category>
</categories>
<tags>
<tag>C语言</tag>
</tags>
</entry>
<entry>
<title>五子棋下载</title>
<link href="/2020/11/14/%E4%BA%94%E5%AD%90%E6%A3%8B/"/>
<url>/2020/11/14/%E4%BA%94%E5%AD%90%E6%A3%8B/</url>
<content type="html"><![CDATA[<h1 id="五子棋v1-2"><a href="#五子棋v1-2" class="headerlink" title="五子棋v1.2"></a>五子棋v1.2</h1><p><strong>本游戏由C语言+easyx图形库制作，制作者：奇光灿烂</strong></p><a id="more"></a><h2 id="功能介绍"><a href="#功能介绍" class="headerlink" title="功能介绍"></a>功能介绍</h2><ul><li>鼠标点击即可下棋</li><li>侧边栏显示对局结果、行棋方、回合数和已用时间</li><li>按R键可重新开始游戏</li><li>按B键可以悔棋</li><li>游戏结束后会提示重新开始游戏</li><li>背景音乐“高山流水”</li></ul><h2 id="更新内容"><a href="#更新内容" class="headerlink" title="更新内容"></a>更新内容</h2><ul><li>修复弹窗影响程序内容bug；</li><li>修复侧边栏“弯曲”bug；</li><li>优化程序结构；</li><li>新增“重新开始”功能；</li><li>新增在鼠标指向的格点面积提示；</li><li>优化代码，增强可读性</li></ul><h2 id="效果展示"><a href="#效果展示" class="headerlink" title="效果展示"></a>效果展示</h2><p><img src="https://wangyucan1.gitee.io/2020/11/14/%E4%BA%94%E5%AD%90%E6%A3%8B/gobang1.png" alt="五子棋效果展示"><br><img src="https://wangyucan1.gitee.io/2020/11/14/%E4%BA%94%E5%AD%90%E6%A3%8B/gobang2.png" alt="五子棋效果展示"><br><img src="https://wangyucan1.gitee.io/2020/11/14/%E4%BA%94%E5%AD%90%E6%A3%8B/gobang3.png" alt="五子棋效果展示"><br><img src="https://wangyucan1.gitee.io/2020/11/14/%E4%BA%94%E5%AD%90%E6%A3%8B/gobang4.png" alt="五子棋效果展示"></p><h2 id="源代码"><a href="#源代码" class="headerlink" title="源代码"></a>源代码</h2><p><a href="https://wangyucan1.gitee.io/2020/12/26/%E4%BA%94%E5%AD%90%E6%A3%8Bv1-2code/" title="v1.2源代码">点击查看</a></p><h2 id="下载"><a href="#下载" class="headerlink" title="下载"></a>下载</h2><p> 运行环境：Windows</p><h3 id="安装包"><a href="#安装包" class="headerlink" title="安装包"></a>安装包</h3><p>下载链接：<a href="http://lz.qaiu.top/parser?url=https://wws.lanzous.com/ie8Yxjwtvne" title="五子棋v1.2.exe">五子棋v1.2.exe</a></p><p>备用下载链接：<a href="https://wws.lanzous.com/ie8Yxjwtvne" title="五子棋v1.2.exe">五子棋v1.2.exe</a></p><h3 id="免安装版"><a href="#免安装版" class="headerlink" title="免安装版"></a>免安装版</h3><p>下载链接：<a href="http://lz.qaiu.top/parser?url=https://wws.lanzous.com/ievq0jqo7kb" title="五子棋v1.2.rar">五子棋v1.2.rar</a></p><p>备用下载链接：<a href="https://wws.lanzous.com/ievq0jqo7kb" title="五子棋v1.2.rar">五子棋v1.2.rar</a></p><h2 id="旧版本"><a href="#旧版本" class="headerlink" title="旧版本"></a>旧版本</h2><h3 id="v0-8"><a href="#v0-8" class="headerlink" title="v0.8"></a>v0.8</h3><p>源代码：<a href="https://wangyucan1.gitee.io/2020/12/26/%E4%BA%94%E5%AD%90%E6%A3%8Bv0-8code/" title="v0.8源代码">点击查看</a></p><p>安装包：<a href="http://lz.qaiu.top/parser?url=https://wws.lanzous.com/iNreUj2whhc" title="五子棋v0.8.exe">点击下载</a></p><p>压缩包：<a href="http://lz.qaiu.top/parser?url=https://wws.lanzous.com/iyWRxj2whje" title="五子棋v0.8.rar">点击下载</a></p><h3 id="v1-0"><a href="#v1-0" class="headerlink" title="v1.0"></a>v1.0</h3><p>源代码：<a href="https://wangyucan1.gitee.io/2020/12/26/%E4%BA%94%E5%AD%90%E6%A3%8Bv1-0code/" title="v1.0源代码">点击查看</a></p><p>安装包：<a href="http://lz.qaiu.top/parser?url=https://wws.lanzous.com/iz756j2whmh" title="五子棋v1.0.exe">点击下载</a></p><p>压缩包：<a href="http://lz.qaiu.top/parser?url=https://wws.lanzous.com/iiFHnj2whpa" title="五子棋v1.0.rar">点击下载</a></p><p><strong>关于此游戏的改进建议以及意见，欢迎下方评论留言！</strong></p>]]></content>
<categories>
<category>C语言</category>
</categories>
<tags>
<tag>C语言</tag>
<tag>小项目</tag>
<tag>easyx</tag>
</tags>
</entry>
</search>