pbl-app/src/views/login/index.vue

<template>
  <div class="loginBox">
    <button @click="handleLogin">登录</button>
  </div>
</template>

<script>
export default {
  data() {
    return {
      redirect: undefined
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  methods: {
    handleLogin() {
      this.$router.push({ path: this.redirect || '/' })
    }
  }
}
</script>

<style lang="scss" scoped>
.loginBox {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}
</style>