golang:自定义类型转换 non-interface type int32 on left

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报错：

<pre><code class="lang-bash hljs">non-interface <span class="token function">type</span> int32 on left </code></pre>

要点：
传进来的参数不是interface类型那么做类型断言都是回报 non-interface的错误
需要借助interface{}()进行转换
案例：

<pre><code class="lang-go hljs"><span class="token keyword">type</span> IntStr <span class="token keyword">struct</span> <span class="token punctuation">{</span> <span class="token builtin">int32</span> <span class="token builtin">string</span> <span class="token punctuation">}</span> <span class="token keyword">func</span> <span class="token function">test</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">{</span> <span class="token keyword">var</span> a <span class="token builtin">int32</span> b<span class="token operator">:=</span><span class="token keyword">interface</span><span class="token punctuation">{</span><span class="token punctuation">}</span><span class="token punctuation">(</span>a<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token punctuation">(</span>IntStr<span class="token punctuation">)</span> klog<span class="token punctuation">.</span><span class="token function">Info</span><span class="token punctuation">(</span>b<span class="token punctuation">)</span> <span class="token punctuation">}</span> </code></pre> 到此这篇关于“golang:自定义类型转换 non-interface type int32 on left”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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