项目中用的监听页面路由离开时，进行用户提示相关操作。示例如下：
主要用到 vue-router 的 onBeforeRouteLeave 方法

import { onBeforeRouteLeave } from 'vue-router'
// 监听路由离开
onBeforeRouteLeave((to, from, next) => {
  if (unref(isHomeEdit)) {
    // 编辑状态离开时
    ElMessageBox.confirm('', '编辑内容尚未保存，是否保存？', {
      confirmButtonText: '保存',
      cancelButtonText: '取消',
      type: 'info',
      center: true,
      customClass: 'toggle-project-modal',
      beforeClose: async (action, instance, done) => {
        if (action === 'confirm') {
          instance.confirmButtonLoading = true
          await sendSubmit()
          instance.confirmButtonLoading = false
          done()
        } else {
          done()
        }
      }
    })
      .then(async () => {
        next()
      })
      .catch(() => {
        cancelHomeEdit()
        next()
      })
  } else {
    next()
  }
})