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src/components/error-page/404.vue

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+<template>
+  <div class="error-page">
+    <div class="img"
+         style=" background-image: url('/img/404.svg');"></div>
+    <div class="content">
+      <h1>404</h1>
+      <div class="desc">抱歉，你访问的页面不存在</div>
+      <div class="actions">
+        <router-link :to="{path:'/'}">
+          <el-button type="primary">返回首页</el-button>
+        </router-link>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script>
+export default {
+  name: "error-404"
+};
+</script>
+<style lang="scss" scoped>
+@import "./style.scss";
+</style>