golang面试问题集锦
发布时间：2022-01-09 编辑：jiaochengji.com
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<svg xmlns="http://www.w3.org/2000/svg" style="display: none;"><path stroke-linecap="round" d="M5,0 0,2.5 5,5z" id="raphael-marker-block" style="-webkit-tap-highlight-color: rgba(0, 0, 0, 0);"/></svg><ul><li>启动两个线程，合并输出到stdout
要求用java wait notify,但不会用java,这里用go的channel实现了一下。</li></ul><pre><code class="lang-go hljs"><span class="token keyword">package</span> main <span class="token keyword">import</span> <span class="token string">"fmt"</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> ch1 <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">int</span><span class="token punctuation">)</span> ch2 <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">int</span><span class="token punctuation">)</span> <span class="token keyword">go</span> <span class="token keyword">func</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> <span class="token keyword">for</span> i <span class="token operator">:=</span> <span class="token number">0</span><span class="token punctuation">;</span> i <span class="token operator"><</span> <span class="token number">10</span><span class="token punctuation">;</span> i<span class="token operator"> </span> <span class="token punctuation">{</span> <span class="token keyword">if</span> i<span class="token operator">%</span><span class="token number">2</span> <span class="token operator">==</span> <span class="token number">0</span> <span class="token punctuation">{</span> ch1 <span class="token operator"><-</span> i <span class="token punctuation">}</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">go</span> <span class="token keyword">func</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> <span class="token keyword">for</span> i <span class="token operator">:=</span> <span class="token number">0</span><span class="token punctuation">;</span> i <span class="token operator"><</span> <span class="token number">10</span><span class="token punctuation">;</span> i<span class="token operator"> </span> <span class="token punctuation">{</span> <span class="token keyword">if</span> i<span class="token operator">%</span><span class="token number">2</span> <span class="token operator">==</span> <span class="token number">1</span> <span class="token punctuation">{</span> ch2 <span class="token operator"><-</span> i <span class="token punctuation">}</span> <span class="token punctuation">}</span> <span class="token punctuation">}</span><span class="token punctuation">(</span><span class="token punctuation">)</span> tmp <span class="token operator">:=</span> <span class="token number">0</span> <span class="token keyword">for</span> i <span class="token operator">:=</span> <span class="token number">0</span><span class="token punctuation">;</span> i <span class="token operator"><</span> <span class="token number">5</span><span class="token punctuation">;</span> i<span class="token operator"> </span> <span class="token punctuation">{</span> tmp <span class="token operator">=</span> <span class="token operator"><-</span>ch1 fmt<span class="token punctuation">.</span><span class="token function">Println</span><span class="token punctuation">(</span>tmp<span class="token punctuation">)</span> tmp <span class="token operator">=</span> <span class="token operator"><-</span>ch2 fmt<span class="token punctuation">.</span><span class="token function">Println</span><span class="token punctuation">(</span>tmp<span class="token punctuation">)</span> <span class="token punctuation">}</span> <span class="token punctuation">}</span> </code></pre>
要求用java wait notify,但不会用java,这里用go的channel实现了一下。</li></ul><pre><code class="lang-go hljs"><span class="token keyword">package</span> main <span class="token keyword">import</span> <span class="token string">"fmt"</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> ch1 <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">int</span><span class="token punctuation">)</span> ch2 <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">int</span><span class="token punctuation">)</span> <span class="token keyword">go</span> <span class="token keyword">func</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> <span class="token keyword">for</span> i <span class="token operator">:=</span> <span class="token number">0</span><span class="token punctuation">;</span> i <span class="token operator"><</span> <span class="token number">10</span><span class="token punctuation">;</span> i<span class="token operator"> </span> <span class="token punctuation">{</span> <span class="token keyword">if</span> i<span class="token operator">%</span><span class="token number">2</span> <span class="token operator">==</span> <span class="token number">0</span> <span class="token punctuation">{</span> ch1 <span class="token operator"><-</span> i <span class="token punctuation">}</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">go</span> <span class="token keyword">func</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> <span class="token keyword">for</span> i <span class="token operator">:=</span> <span class="token number">0</span><span class="token punctuation">;</span> i <span class="token operator"><</span> <span class="token number">10</span><span class="token punctuation">;</span> i<span class="token operator"> </span> <span class="token punctuation">{</span> <span class="token keyword">if</span> i<span class="token operator">%</span><span class="token number">2</span> <span class="token operator">==</span> <span class="token number">1</span> <span class="token punctuation">{</span> ch2 <span class="token operator"><-</span> i <span class="token punctuation">}</span> <span class="token punctuation">}</span> <span class="token punctuation">}</span><span class="token punctuation">(</span><span class="token punctuation">)</span> tmp <span class="token operator">:=</span> <span class="token number">0</span> <span class="token keyword">for</span> i <span class="token operator">:=</span> <span class="token number">0</span><span class="token punctuation">;</span> i <span class="token operator"><</span> <span class="token number">5</span><span class="token punctuation">;</span> i<span class="token operator"> </span> <span class="token punctuation">{</span> tmp <span class="token operator">=</span> <span class="token operator"><-</span>ch1 fmt<span class="token punctuation">.</span><span class="token function">Println</span><span class="token punctuation">(</span>tmp<span class="token punctuation">)</span> tmp <span class="token operator">=</span> <span class="token operator"><-</span>ch2 fmt<span class="token punctuation">.</span><span class="token function">Println</span><span class="token punctuation">(</span>tmp<span class="token punctuation">)</span> <span class="token punctuation">}</span> <span class="token punctuation">}</span> </code></pre>
输出
<pre><code class="lang-bash hljs">0 1 2 3 4 5 6 7 8 9 </code></pre> <ul><li>for-range坑</li></ul> 到此这篇关于“golang面试问题集锦”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！您可能感兴趣的文章：
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