前台-vue3.2 上传组件+拖拽

<script lang="ts" setup>
	import { ref, watch } from 'vue'
	import { ElMessage, ElUpload } from 'element-plus'
	import { Plus } from '@element-plus/icons-vue'
	import type { UploadProps } from 'element-plus'
	import { upload } from '@/api/upDate/obsUtil'
	import { nextTick } from 'vue'

	const imageUrl = ref('')
	const upLoadRef = ref(ElUpload)
	const dialogImageUrl = ref('')
	const dialogVisible = ref(false)
	const uploadFileList = ref<Array<any>>([])
	const dragIndex = ref(0)
	const enterIndex = ref(0)
	const timeout = ref<any>(null)
	const $emit = defineEmits(['uploadUrl', 'update:modelValue'