Golang struct slice排序方式

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<strong>1 提供less(i, j int) bool函数</strong> <br /> <strong>1.1 golang代码</strong> <br /> <div class="dp-highlighter"><div class="bar"></div><ol start="1" class="dp-j"><li class="alt"><span><span class="keyword">package</span><span>&nbsp;main&nbsp;&nbsp;</span></span></li><li class=""><span>&nbsp;&nbsp;</span></li><li class="alt"><span><span class="keyword">import</span><span>&nbsp;(&nbsp;&nbsp;</span></span></li><li class=""><span>&nbsp;&nbsp;&nbsp;&nbsp;<span class="string">"fmt"</span><span>&nbsp;&nbsp;</span></span></li><li class="alt"><span>&nbsp;&nbsp;&nbsp;&nbsp;<span class="string">"sort"</span><span>&nbsp;&nbsp;</span></span></li><li class=""><span>)&nbsp;&nbsp;</span></li><li class="alt"><span>&nbsp;&nbsp;</span></li><li class=""><span>func&nbsp;main()&nbsp;{&nbsp;&nbsp;</span></li><li class="alt"><span>&nbsp;&nbsp;&nbsp;&nbsp;ps&nbsp;:=&nbsp;[]struct&nbsp;{&nbsp;&nbsp;</span></li><li class=""><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;name&nbsp;string&nbsp;&nbsp;</span></li><li class="alt"><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;age&nbsp;&nbsp;<span class="keyword">int</span><span>&nbsp;&nbsp;</span></span></li><li class=""><span>&nbsp;&nbsp;&nbsp;&nbsp;}{&nbsp;&nbsp;</span></li><li class="alt"><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<span class="string">"larry"</span><span>,&nbsp;</span><span class="number">19</span><span>},&nbsp;&nbsp;</span></span></li><li class=""><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<span class="string">"jackey"</span><span>,&nbsp;</span><span class="number">18</span><span>},&nbsp;&nbsp;</span></span></li><li class="alt"><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<span class="string">"lucy"</span><span>,&nbsp;</span><span class="number">20</span><span>},&nbsp;&nbsp;</span></span></li><li class=""><span>&nbsp;&nbsp;&nbsp;&nbsp;}&nbsp;&nbsp;</span></li><li class="alt"><span>&nbsp;&nbsp;&nbsp;&nbsp;<span class="comment">//&nbsp;keeping&nbsp;the&nbsp;original&nbsp;order&nbsp;of&nbsp;equal&nbsp;elements</span><span>&nbsp;&nbsp;</span></span></li><li class=""><span>&nbsp;&nbsp;&nbsp;&nbsp;sort.SliceStable(ps,&nbsp;func(i,&nbsp;j&nbsp;<span class="keyword">int</span><span>)&nbsp;bool&nbsp;{&nbsp;&nbsp;</span></span></li><li class="alt"><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">return</span><span>&nbsp;ps[i].age&nbsp;&lt;&nbsp;ps[j].age&nbsp;&nbsp;</span></span></li><li class=""><span>&nbsp;&nbsp;&nbsp;&nbsp;})&nbsp;&nbsp;</span></li><li class="alt"><span>&nbsp;&nbsp;&nbsp;&nbsp;fmt.Println(ps)&nbsp;&nbsp;</span></li><li class=""><span>}&nbsp;&nbsp;</span></li></ol></div> <br /> <strong>1.2 结果输出</strong> <br /> <div class="dp-highlighter nogutter"><div class="bar"></div><ol start="0" class="dp-j"><li class="alt"><span><span>[{jackey&nbsp;</span><span class="number">18</span><span>}&nbsp;{larry&nbsp;</span><span class="number">19</span><span>}&nbsp;{lucy&nbsp;</span><span class="number">20</span><span>}]&nbsp;&nbsp;</span></span></li></ol></div> <br /> <strong>2 实现sort.Interface接口</strong> <br /> <strong>2.1 golang代码</strong> <br /> <div class="dp-highlighter"><div class="bar"></div><ol start="1" class="dp-j"><li class="alt"><span><span class="keyword">package</span><span>&nbsp;main&nbsp;&nbsp;</span></span></li><li class=""><span>&nbsp;&nbsp;</span></li><li class="alt"><span><span class="keyword">import</span><span>&nbsp;(&nbsp;&nbsp;</span></span></li><li class=""><span>&nbsp;&nbsp;&nbsp;&nbsp;<span class="string">"fmt"</span><span>&nbsp;&nbsp;</span></span></li><li class="alt"><span>&nbsp;&nbsp;&nbsp;&nbsp;<span class="string">"sort"</span><span>&nbsp;&nbsp;</span></span></li><li class=""><span>)&nbsp;&nbsp;</span></li><li class="alt"><span>&nbsp;&nbsp;</span></li><li class=""><span>type&nbsp;person&nbsp;struct&nbsp;{&nbsp;&nbsp;</span></li><li class="alt"><span>&nbsp;&nbsp;&nbsp;&nbsp;name&nbsp;string&nbsp;&nbsp;</span></li><li class=""><span>&nbsp;&nbsp;&nbsp;&nbsp;age&nbsp;&nbsp;<span class="keyword">int</span><span>&nbsp;&nbsp;</span></span></li><li class="alt"><span>}&nbsp;&nbsp;</span></li><li class=""><span>&nbsp;&nbsp;</span></li><li class="alt"><span>type&nbsp;persons&nbsp;[]person&nbsp;&nbsp;</span></li><li class=""><span>&nbsp;&nbsp;</span></li><li class="alt"><span>func&nbsp;(ps&nbsp;persons)&nbsp;Len()&nbsp;<span class="keyword">int</span><span>&nbsp;{&nbsp;&nbsp;</span></span></li><li class=""><span>&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">return</span><span>&nbsp;len(ps)&nbsp;&nbsp;</span></span></li><li class="alt"><span>}&nbsp;&nbsp;</span></li><li class=""><span>&nbsp;&nbsp;</span></li><li class="alt"><span>func&nbsp;(ps&nbsp;persons)&nbsp;Less(i,&nbsp;j&nbsp;<span class="keyword">int</span><span>)&nbsp;bool&nbsp;{&nbsp;&nbsp;</span></span></li><li class=""><span>&nbsp;&nbsp;&nbsp;&nbsp;<span class="keyword">return</span><span>&nbsp;ps[i].age&nbsp;&lt;&nbsp;ps[j].age&nbsp;&nbsp;</span></span></li><li class="alt"><span>}&nbsp;&nbsp;</span></li><li class=""><span>&nbsp;&nbsp;</span></li><li class="alt"><span>func&nbsp;(ps&nbsp;persons)&nbsp;Swap(i,&nbsp;j&nbsp;<span class="keyword">int</span><span>)&nbsp;{&nbsp;&nbsp;</span></span></li><li class=""><span>&nbsp;&nbsp;&nbsp;&nbsp;ps[i],&nbsp;ps[j]&nbsp;=&nbsp;ps[j],&nbsp;ps[i]&nbsp;&nbsp;</span></li><li class="alt"><span>}&nbsp;&nbsp;</span></li><li class=""><span>&nbsp;&nbsp;</span></li><li class="alt"><span>func&nbsp;main()&nbsp;{&nbsp;&nbsp;</span></li><li class=""><span>&nbsp;&nbsp;&nbsp;&nbsp;ps&nbsp;:=&nbsp;persons{&nbsp;&nbsp;</span></li><li class="alt"><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<span class="string">"larry"</span><span>,&nbsp;</span><span class="number">19</span><span>},&nbsp;&nbsp;</span></span></li><li class=""><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<span class="string">"jackey"</span><span>,&nbsp;</span><span class="number">18</span><span>},&nbsp;&nbsp;</span></span></li><li class="alt"><span>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{<span class="string">"lucy"</span><span>,&nbsp;</span><span class="number">20</span><span>},&nbsp;&nbsp;</span></span></li><li class=""><span>&nbsp;&nbsp;&nbsp;&nbsp;}&nbsp;&nbsp;</span></li><li class="alt"><span>&nbsp;&nbsp;&nbsp;&nbsp;sort.Sort(ps)&nbsp;&nbsp;</span></li><li class=""><span>&nbsp;&nbsp;&nbsp;&nbsp;fmt.Println(ps)&nbsp;&nbsp;</span></li><li class="alt"><span>}&nbsp;&nbsp;</span></li></ol></div> <br /> <strong>2.2 结果输出</strong> <br /> <div class="dp-highlighter nogutter"><div class="bar"></div><ol start="0" class="dp-j"><li class="alt"><span><span>[{jackey&nbsp;</span><span class="number">18</span><span>}&nbsp;{larry&nbsp;</span><span class="number">19</span><span>}&nbsp;{lucy&nbsp;</span><span class="number">20</span><span>}]&nbsp;&nbsp;</span></span></li></ol></div> <br /> 原文地址:https://leileiluoluo.com/posts/golang-struct-slice-sorting.html

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