golang类型转换/数组去重/转换/复杂map生成及取值
发布时间：2022-01-15 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><h1>go-array</h1>
<h2>Element</h2>
支持 int、int32、int64、uint、uint32、uint64、float32、float64、string 之间的相互转换
示例:
<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">"github.com/a1049990866/go-array/elemen"</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> e <span class="token operator">:=</span> elemen<span class="token punctuation">.</span><span class="token function">NewElement</span><span class="token punctuation">(</span><span class="token string">"12"</span><span class="token punctuation">)</span> fmt<span class="token punctuation">.</span><span class="token function">Println</span><span class="token punctuation">(</span>e<span class="token punctuation">.</span><span class="token function">ToInt</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span> fmt<span class="token punctuation">.</span><span class="token function">Println</span><span class="token punctuation">(</span>e<span class="token punctuation">.</span>Error<span class="token punctuation">)</span> <span class="token comment">//可以通过Error查看是否转换失败了</span> <span class="token punctuation">}</span> </code></pre> <h2>Array</h2>支持 []int、[]int32、[]int64、[]uint、[]uint32、[]uint64、[]float32、[]float64、[]string 之间的相互转换及去重
示例:
<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">"github.com/a1049990866/go-array/array"</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> arr <span class="token operator">:=</span> array<span class="token punctuation">.</span><span class="token function">NewArray</span><span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token builtin">string</span><span class="token punctuation">{</span><span class="token string">"1"</span><span class="token punctuation">,</span> <span class="token string">"2"</span><span class="token punctuation">,</span> <span class="token string">"3"</span><span class="token punctuation">,</span> <span class="token string">"5"</span><span class="token punctuation">,</span> <span class="token string">"3"</span><span class="token punctuation">}</span><span class="token punctuation">,</span> array<span class="token punctuation">.</span>StringArray<span class="token punctuation">)</span> fmt<span class="token punctuation">.</span><span class="token function">Println</span><span class="token punctuation">(</span>arr<span class="token punctuation">.</span><span class="token function">ToIntArray</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span> fmt<span class="token punctuation">.</span><span class="token function">Println</span><span class="token punctuation">(</span>arr<span class="token punctuation">.</span><span class="token function">ToFloat32Map</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token comment">//返回每个值出现的数量</span> arr<span class="token punctuation">.</span><span class="token function">Deduplication</span><span class="token punctuation">(</span><span class="token boolean">true</span><span class="token punctuation">)</span> <span class="token comment">//支持对返回结果进行去重</span> fmt<span class="token punctuation">.</span><span class="token function">Println</span><span class="token punctuation">(</span>arr<span class="token punctuation">.</span><span class="token function">ToIntArray</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token punctuation">}</span> </code></pre> <h2>Dict</h2>支持生成复杂map及从map中取值
示例:
<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">"github.com/a1049990866/go-array/dict"</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> d <span class="token operator">:=</span> dict<span class="token punctuation">.</span><span class="token function">NewDict</span><span class="token punctuation">(</span><span class="token boolean">nil</span><span class="token punctuation">)</span> d<span class="token punctuation">.</span><span class="token function">Set</span><span class="token punctuation">(</span><span class="token string">"1"</span><span class="token punctuation">,</span> <span class="token boolean">false</span><span class="token punctuation">,</span> <span class="token number">2</span><span class="token punctuation">,</span> <span class="token string">"3"</span><span class="token punctuation">,</span> <span class="token number">4</span><span class="token punctuation">,</span> <span class="token number">5</span><span class="token punctuation">)</span> fmt<span class="token punctuation">.</span><span class="token function">Println</span><span class="token punctuation">(</span>d<span class="token punctuation">.</span>Data<span class="token punctuation">,</span> <span class="token string">"----------"</span><span class="token punctuation">,</span> d<span class="token punctuation">.</span>Value<span class="token punctuation">.</span><span class="token function">Type</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span> d<span class="token punctuation">.</span><span class="token function">Set</span><span class="token punctuation">(</span><span class="token number">2</span><span class="token punctuation">,</span> <span class="token boolean">true</span><span class="token punctuation">,</span> <span class="token number">3</span><span class="token punctuation">,</span> <span class="token string">"4"</span><span class="token punctuation">,</span> <span class="token number">5</span><span class="token punctuation">)</span> fmt<span class="token punctuation">.</span><span class="token function">Println</span><span class="token punctuation">(</span>d<span class="token punctuation">.</span>Data<span class="token punctuation">,</span> <span class="token string">"----------"</span><span class="token punctuation">,</span> d<span class="token punctuation">.</span>Value<span class="token punctuation">.</span><span class="token function">Type</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span> d<span class="token punctuation">.</span><span class="token function">Set</span><span class="token punctuation">(</span><span class="token number">3</span><span class="token punctuation">,</span> <span class="token boolean">false</span><span class="token punctuation">,</span> <span class="token number">3</span><span class="token punctuation">,</span> <span class="token number">5</span><span class="token punctuation">)</span> fmt<span class="token punctuation">.</span><span class="token function">Println</span><span class="token punctuation">(</span>d<span class="token punctuation">.</span>Data<span class="token punctuation">,</span> <span class="token string">"----------"</span><span class="token punctuation">,</span> d<span class="token punctuation">.</span>Value<span class="token punctuation">.</span><span class="token function">Type</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span> d<span class="token punctuation">.</span><span class="token function">Set</span><span class="token punctuation">(</span><span class="token number">2.3</span><span class="token punctuation">,</span> <span class="token boolean">true</span><span class="token punctuation">,</span> <span class="token number">3</span><span class="token punctuation">,</span> <span class="token string">"x"</span><span class="token punctuation">)</span> fmt<span class="token punctuation">.</span><span class="token function">Println</span><span class="token punctuation">(</span>d<span class="token punctuation">.</span>Data<span class="token punctuation">,</span> <span class="token string">"----------"</span><span class="token punctuation">,</span> d<span class="token punctuation">.</span>Value<span class="token punctuation">.</span><span class="token function">Type</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span> d<span class="token punctuation">.</span><span class="token function">Set</span><span class="token punctuation">(</span><span class="token string">"2"</span><span class="token punctuation">,</span> <span class="token boolean">true</span><span class="token punctuation">,</span> <span class="token string">"3"</span><span class="token punctuation">,</span> <span class="token string">"xx"</span><span class="token punctuation">)</span> fmt<span class="token punctuation">.</span><span class="token function">Println</span><span class="token punctuation">(</span>d<span class="token punctuation">.</span>Data<span class="token punctuation">,</span> <span class="token string">"----------"</span><span class="token punctuation">,</span> d<span class="token punctuation">.</span>Value<span class="token punctuation">.</span><span class="token function">Type</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span> d<span class="token punctuation">.</span><span class="token function">Set</span><span class="token punctuation">(</span><span class="token string">"3"</span><span class="token punctuation">,</span> <span class="token boolean">true</span><span class="token punctuation">,</span> <span class="token number">3</span><span class="token punctuation">,</span> <span class="token number">4</span><span class="token punctuation">)</span> fmt<span class="token punctuation">.</span><span class="token function">Println</span><span class="token punctuation">(</span>d<span class="token punctuation">.</span>Data<span class="token punctuation">,</span> <span class="token string">"----------"</span><span class="token punctuation">,</span> d<span class="token punctuation">.</span>Value<span class="token punctuation">.</span><span class="token function">Type</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span> fmt<span class="token punctuation">.</span><span class="token function">Println</span><span class="token punctuation">(</span>d<span class="token punctuation">.</span><span class="token function">Get</span><span class="token punctuation">(</span><span class="token number">3</span><span class="token punctuation">,</span> <span class="token number">4</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">)</span><span class="token punctuation">,</span> d<span class="token punctuation">.</span>Error<span class="token punctuation">)</span> fmt<span class="token punctuation">.</span><span class="token function">Println</span><span class="token punctuation">(</span>d<span class="token punctuation">.</span><span class="token function">GetElement</span><span class="token punctuation">(</span><span class="token number">3</span><span class="token punctuation">,</span> <span class="token string">"x"</span><span class="token punctuation">,</span> <span class="token number">0</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">ToString</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">,</span> d<span class="token punctuation">.</span>Error<span class="token punctuation">)</span> <span class="token punctuation">}</span> </code></pre> <pre><code>map[2:map[3:map[4:map[5:1]]]] ---------- map[int]map[string]map[int]map[int]string map[2:map[3:map[4:map[5:1]]] 3:map[5:3 4:map[5:[2]]]] ---------- map[int]interface {} map[2:map[3:map[4:map[5:1]]] 3:map[4:map[5:[2]]]] ---------- map[int]interface {} map[2:map[3:map[4:map[5:1]]] 3:map[5:3 4:map[5:[2]] x:[2.3]]] ---------- map[int]interface {} map[2:map[3:map[4:map[5:1]]] 3:map[5:3 4:map[5:[2]] x:[2.3]] 3:map[xx:[2]]] ---------- map[interface {}]interface {} map[2:map[3:map[4:map[5:1]]] 3:map[4:[3] 5:3 4:map[5:[2]] x:[2.3]] 3:map[xx:[2]]] ---------- map[interface {}]interface {} 3 <nil> 2.3 <nil> </code></pre> 到此这篇关于“golang类型转换/数组去重/转换/复杂map生成及取值”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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