golang无缓冲通道

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通道是goroutine之间的安全通讯机制。是阻塞/同步机制

<pre><code class="lang-go hljs"><span class="token keyword">package</span> main <span class="token keyword">import</span> <span class="token punctuation">(</span> <span class="token string">"fmt"</span> <span class="token string">"math/rand"</span> <span class="token string">"sync"</span> <span class="token string">"time"</span> <span class="token punctuation">)</span> <span class="token keyword">var</span> wg sync<span class="token punctuation">.</span>WaitGroup <span class="token keyword">func</span> <span class="token function">init</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> rand<span class="token punctuation">.</span><span class="token function">Seed</span><span class="token punctuation">(</span>time<span class="token punctuation">.</span><span class="token function">Now</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">UnixNano</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token punctuation">}</span> <span class="token keyword">func</span> <span class="token function">main</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> cc <span class="token operator">:=</span> <span class="token function">make</span><span class="token punctuation">(</span><span class="token keyword">chan</span> <span class="token builtin">byte</span><span class="token punctuation">)</span> wg<span class="token punctuation">.</span><span class="token function">Add</span><span class="token punctuation">(</span><span class="token number">2</span><span class="token punctuation">)</span> <span class="token comment">// 运动员就绪</span> <span class="token keyword">go</span> <span class="token function">playball</span><span class="token punctuation">(</span><span class="token string">"ping jie"</span><span class="token punctuation">,</span> cc<span class="token punctuation">)</span> <span class="token keyword">go</span> <span class="token function">playball</span><span class="token punctuation">(</span><span class="token string">"luo ge"</span><span class="token punctuation">,</span> cc<span class="token punctuation">)</span> cc <span class="token operator"><-</span> <span class="token number">1</span> wg<span class="token punctuation">.</span><span class="token function">Wait</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">}</span> <span class="token comment">// 运动员</span> <span class="token keyword">func</span> <span class="token function">playball</span><span class="token punctuation">(</span>name <span class="token builtin">string</span><span class="token punctuation">,</span> cc <span class="token keyword">chan</span> <span class="token builtin">byte</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> <span class="token keyword">defer</span> wg<span class="token punctuation">.</span><span class="token function">Done</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token keyword">for</span> <span class="token punctuation">{</span> <span class="token comment">// 接球</span> ball<span class="token punctuation">,</span> ok <span class="token operator">:=</span> <span class="token operator"><-</span>cc <span class="token keyword">if</span> <span class="token operator">!</span>ok <span class="token punctuation">{</span> fmt<span class="token punctuation">.</span><span class="token function">Printf</span><span class="token punctuation">(</span><span class="token string">"Player %s Won\n"</span><span class="token punctuation">,</span> name<span class="token punctuation">)</span> <span class="token keyword">return</span> <span class="token punctuation">}</span> <span class="token comment">// 结束条件判断</span> n <span class="token operator">:=</span> rand<span class="token punctuation">.</span><span class="token function">Intn</span><span class="token punctuation">(</span><span class="token number">50</span><span class="token punctuation">)</span> <span class="token keyword">if</span> n<span class="token operator">%</span><span class="token number">9</span> <span class="token operator">==</span> <span class="token number">0</span> <span class="token punctuation">{</span> fmt<span class="token punctuation">.</span><span class="token function">Printf</span><span class="token punctuation">(</span><span class="token string">"Player %s Missed\n"</span><span class="token punctuation">,</span> name<span class="token punctuation">)</span> <span class="token function">close</span><span class="token punctuation">(</span>cc<span class="token punctuation">)</span> <span class="token keyword">return</span> <span class="token punctuation">}</span> <span class="token comment">// 发球</span> fmt<span class="token punctuation">.</span><span class="token function">Printf</span><span class="token punctuation">(</span><span class="token string">"Player %s Hit %d\n"</span><span class="token punctuation">,</span> name<span class="token punctuation">,</span> ball<span class="token punctuation">)</span> cc <span class="token operator"><-</span> ball <span class="token punctuation">}</span> <span class="token punctuation">}</span> </code></pre> 到此这篇关于“golang无缓冲通道”的文章就介绍到这了,更多文章或继续浏览下面的相关文章，希望大家以后多多支持JQ教程网！

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