el-checkbox-group 保存数据

el-checkbox-group可以通过v-model来保存选中的数据。v-model绑定的是一个数组，可以通过改变数组的值来实现数据的保存。每当用户选择一个或多个checkbox时，选中的值会被添加到v-model绑定的数组中，用户取消选择时，对应的值会从数组中移除。这样，最终v-model绑定的数组中就保存了用户选择的数据。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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