W250913/14.uniapp/project2/components/desc.vue

<template>
	<view>
		{{wordStr}}
		<text style="color: black;" v-if="isShow" @click.stop="openShow">...展开</text>
		<text style="color: black;" v-if="isStop" @click.stop="closeShow">收起</text>
	</view>
</template>

<script>
	export default {
		data(){
			return {
				wordStr:"",
				isShow: true,
				isStop: false
			}
		},
		props:['val'],
		created() {
			this.formatHtml(this.val)
		},
		methods:{
			formatHtml(str) {
				console.log(str.length,'长度')
				if(str.length > 50) {
					this.wordStr = str.substr(0,50);
				}
			},
			openShow() {
				this.isShow = false;
				this.isStop = true;
				this.wordStr = this.val;
			},
			closeShow() {
				this.isShow = true;
				this.isStop = false;
				this.formatHtml(this.val);
			}
		}
	}
</script>

<style>
</style>