# es6展开运算符 # 展开运算符的使用 ``` <pre class="calibre14">``` <span class="token2">let</span> a <span class="token">=</span> <span class="token1">[</span><span class="token5">1</span><span class="token1">,</span><span class="token5">2</span><span class="token1">,</span><span class="token5">3</span><span class="token1">]</span><span class="token1">;</span> <span class="token2">let</span> b <span class="token">=</span> <span class="token1">[</span><span class="token5">4</span><span class="token1">,</span><span class="token5">5</span><span class="token1">,</span><span class="token5">6</span><span class="token1">]</span><span class="token1">;</span> <span class="token2">let</span> c <span class="token">=</span> <span class="token1">[</span><span class="token">...</span>a<span class="token1">,</span><span class="token">...</span>b<span class="token1">]</span><span class="token1">;</span> <span class="token6">// [1,2,3,4,5,6]</span> ``` ```