 class="token string">"Hello World!"</span>

<span class="token keyword">if</span> err <span class="token operator">:=</span> app<span class="token punctuation">.</span><span class="token function">Dao</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">Save</span><span class="token punctuation">(</span>article<span class="token punctuation">)</span><span class="token punctuation">;</span> err <span class=