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                                <h1 id="&#x8868;&#x5355;&#x5904;&#x7406;">&#x8868;&#x5355;&#x5904;&#x7406;</h1>
<p>&#x5F53;&#x5728;&#x4E25;&#x683C;&#x6A21;&#x5F0F;&#x4E2D;&#x4F7F;&#x7528; Vuex &#x65F6;&#xFF0C;&#x5728;&#x5C5E;&#x4E8E; Vuex &#x7684; state &#x4E0A;&#x4F7F;&#x7528; <code>v-model</code> &#x4F1A;&#x6BD4;&#x8F83;&#x68D8;&#x624B;&#xFF1A;</p>
<pre class="language-"><code class="lang-html"><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>input</span> <span class="token attr-name">v-model</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>obj.message<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span>
</code></pre>
<p>&#x5047;&#x8BBE;&#x8FD9;&#x91CC;&#x7684; <code>obj</code> &#x662F;&#x5728;&#x8BA1;&#x7B97;&#x5C5E;&#x6027;&#x4E2D;&#x8FD4;&#x56DE;&#x7684;&#x4E00;&#x4E2A;&#x5C5E;&#x4E8E; Vuex store &#x7684;&#x5BF9;&#x8C61;&#xFF0C;&#x5728;&#x7528;&#x6237;&#x8F93;&#x5165;&#x65F6;&#xFF0C;<code>v-model</code> &#x4F1A;&#x8BD5;&#x56FE;&#x76F4;&#x63A5;&#x4FEE;&#x6539; <code>obj.message</code>&#x3002;&#x5728;&#x4E25;&#x683C;&#x6A21;&#x5F0F;&#x4E2D;&#xFF0C;&#x7531;&#x4E8E;&#x8FD9;&#x4E2A;&#x4FEE;&#x6539;&#x4E0D;&#x662F;&#x5728; mutation &#x51FD;&#x6570;&#x4E2D;&#x6267;&#x884C;&#x7684;, &#x8FD9;&#x91CC;&#x4F1A;&#x629B;&#x51FA;&#x4E00;&#x4E2A;&#x9519;&#x8BEF;&#x3002;</p>
<p>&#x7528;&#x201C;Vuex &#x7684;&#x601D;&#x7EF4;&#x201D;&#x53BB;&#x89E3;&#x51B3;&#x8FD9;&#x4E2A;&#x95EE;&#x9898;&#x7684;&#x65B9;&#x6CD5;&#x662F;&#xFF1A;&#x7ED9; <code><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>input</span><span class="token punctuation">&gt;</span></span></code> &#x4E2D;&#x7ED1;&#x5B9A; value&#xFF0C;&#x7136;&#x540E;&#x4FA6;&#x542C; <code>input</code> &#x6216;&#x8005; <code>change</code> &#x4E8B;&#x4EF6;&#xFF0C;&#x5728;&#x4E8B;&#x4EF6;&#x56DE;&#x8C03;&#x4E2D;&#x8C03;&#x7528; action:</p>
<pre class="language-"><code class="lang-html"><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>input</span> <span class="token attr-name">:value</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>message<span class="token punctuation">&quot;</span></span> <span class="token attr-name">@input</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>updateMessage<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span>
</code></pre>
<pre class="language-"><code class="lang-js"><span class="token comment" spellcheck="true">// ...</span>
computed<span class="token punctuation">:</span> <span class="token punctuation">{</span>
  <span class="token operator">...</span><span class="token function">mapState</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
    message<span class="token punctuation">:</span> state <span class="token operator">=</span><span class="token operator">&gt;</span> state<span class="token punctuation">.</span>obj<span class="token punctuation">.</span>message
  <span class="token punctuation">}</span><span class="token punctuation">)</span>
<span class="token punctuation">}</span><span class="token punctuation">,</span>
methods<span class="token punctuation">:</span> <span class="token punctuation">{</span>
  updateMessage <span class="token punctuation">(</span>e<span class="token punctuation">)</span> <span class="token punctuation">{</span>
    <span class="token keyword">this</span><span class="token punctuation">.</span>$store<span class="token punctuation">.</span><span class="token function">commit</span><span class="token punctuation">(</span><span class="token string">&apos;updateMessage&apos;</span><span class="token punctuation">,</span> e<span class="token punctuation">.</span>target<span class="token punctuation">.</span>value<span class="token punctuation">)</span>
  <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre>
<p>&#x4E0B;&#x9762;&#x662F; mutation &#x51FD;&#x6570;&#xFF1A;</p>
<pre class="language-"><code class="lang-js"><span class="token comment" spellcheck="true">// ...</span>
mutations<span class="token punctuation">:</span> <span class="token punctuation">{</span>
  updateMessage <span class="token punctuation">(</span>state<span class="token punctuation">,</span> message<span class="token punctuation">)</span> <span class="token punctuation">{</span>
    state<span class="token punctuation">.</span>obj<span class="token punctuation">.</span>message <span class="token operator">=</span> message
  <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre>
<h3 id="&#x53CC;&#x5411;&#x7ED1;&#x5B9A;&#x7684;&#x8BA1;&#x7B97;&#x5C5E;&#x6027;">&#x53CC;&#x5411;&#x7ED1;&#x5B9A;&#x7684;&#x8BA1;&#x7B97;&#x5C5E;&#x6027;</h3>
<p>&#x5FC5;&#x987B;&#x627F;&#x8BA4;&#xFF0C;&#x8FD9;&#x6837;&#x505A;&#x6BD4;&#x7B80;&#x5355;&#x5730;&#x4F7F;&#x7528;&#x201C;<code>v-model</code> + &#x5C40;&#x90E8;&#x72B6;&#x6001;&#x201D;&#x8981;&#x5570;&#x55E6;&#x5F97;&#x591A;&#xFF0C;&#x5E76;&#x4E14;&#x4E5F;&#x635F;&#x5931;&#x4E86;&#x4E00;&#x4E9B; <code>v-model</code> &#x4E2D;&#x5F88;&#x6709;&#x7528;&#x7684;&#x7279;&#x6027;&#x3002;&#x53E6;&#x4E00;&#x4E2A;&#x65B9;&#x6CD5;&#x662F;&#x4F7F;&#x7528;&#x5E26;&#x6709; setter &#x7684;&#x53CC;&#x5411;&#x7ED1;&#x5B9A;&#x8BA1;&#x7B97;&#x5C5E;&#x6027;&#xFF1A;</p>
<pre class="language-"><code class="lang-html"><span class="token tag"><span class="token tag"><span class="token punctuation">&lt;</span>input</span> <span class="token attr-name">v-model</span><span class="token attr-value"><span class="token punctuation">=</span><span class="token punctuation">&quot;</span>message<span class="token punctuation">&quot;</span></span><span class="token punctuation">&gt;</span></span>
</code></pre>
<pre class="language-"><code class="lang-js"><span class="token comment" spellcheck="true">// ...</span>
computed<span class="token punctuation">:</span> <span class="token punctuation">{</span>
  message<span class="token punctuation">:</span> <span class="token punctuation">{</span>
    <span class="token keyword">get</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
      <span class="token keyword">return</span> <span class="token keyword">this</span><span class="token punctuation">.</span>$store<span class="token punctuation">.</span>state<span class="token punctuation">.</span>obj<span class="token punctuation">.</span>message
    <span class="token punctuation">}</span><span class="token punctuation">,</span>
    <span class="token keyword">set</span> <span class="token punctuation">(</span>value<span class="token punctuation">)</span> <span class="token punctuation">{</span>
      <span class="token keyword">this</span><span class="token punctuation">.</span>$store<span class="token punctuation">.</span><span class="token function">commit</span><span class="token punctuation">(</span><span class="token string">&apos;updateMessage&apos;</span><span class="token punctuation">,</span> value<span class="token punctuation">)</span>
    <span class="token punctuation">}</span>
  <span class="token punctuation">}</span>
<span class="token punctuation">}</span>
</code></pre>

                                
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