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@@ -5,7 +5,7 @@
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<template v-if="item.subs">
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<el-submenu :index="item.index">
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<template slot="title"><i class="el-icon-menu"></i>{{ item.title }}</template>
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- <el-menu-item v-for="subItem in item.subs" :index="subItem.index">{{ subItem.title }}
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+ <el-menu-item v-for="(subItem,i) in item.subs" :key="i" :index="subItem.index">{{ subItem.title }}
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</el-menu-item>
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</el-submenu>
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</template>
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