accout-ui/src/layout/components/Sidebar/Logo.vue

<template>
  <div class="sidebar-logo-container" :class="{ collapse: collapse }">
    <transition name="sidebarLogoFade">
      <router-link
        v-if="collapse"
        key="collapse"
        class="sidebar-logo-link"
        to="/welcome/dashboard"
      >
        <!-- <img v-if="logo" :src="logo" class="sidebar-logo" v-else > -->
        <h1 class="sidebar-title">{{ title }}</h1>
      </router-link>
      <router-link
        v-else
        key="expand"
        class="sidebar-logo-link"
        to="/welcome/dashboard"
      >
        <!-- <img v-if="logo" :src="logo" class="sidebar-logo"> -->
        <h1 class="sidebar-title">{{ title }}</h1>
      </router-link>
    </transition>
  </div>
</template>

<script>
export default {
  name: "SidebarLogo",
  props: {
    collapse: {
      type: Boolean,
      required: true,
    },
  },
  data() {
    return {
      title: "采销平台结算系统",
      logo: require("@/assets/img/logo.gif"),
    };
  },
};
</script>

<style lang="scss" scoped>
.sidebarLogoFade-enter-active {
  transition: opacity 1.5s;
}

.sidebarLogoFade-enter,
.sidebarLogoFade-leave-to {
  opacity: 0;
}

.sidebar-logo-container {
  position: absolute;
  background-color: #63cbe7;
  width: 100%;
  height: 84px;
  line-height: 84px;
  background: transparent;
  text-align: center;
  overflow: hidden;

  & .sidebar-logo-link {
    height: 100%;
    width: 100%;

    & .sidebar-logo {
      width: 32px;
      height: 32px;
      vertical-align: middle;
      margin-right: 8px;
    }

    & .sidebar-title {
      display: inline-block;
      margin: 0;
      color: #fff;
      font-weight: 600;
      line-height: 90px;
      font-size: 18px;
      padding: 0 8px 0 0;
      font-family: Avenir, Helvetica Neue, Arial, Helvetica, sans-serif;
      vertical-align: middle;
    }
  }

  &.collapse {
    .sidebar-logo {
      margin-right: 0px;
    }
  }
}
</style>