vue不是用UI框架texteare

html

<textarea v-model="content" id="textarea" type="textarea" rows="2" autocomplete="off" style="width: 100%;height: 60px;"></textarea>
<divstyle="margin-left: 30px;">
	<ul v-for="(f,i) in friend_list">
		<li class="nameList" @click="insertAtCursor(f.name)">{{f.name}}</li>
	</ul>
</div>

script

new Vue({
	el: '#app',
	data: {
		content: '',
		friend_list: [{
			name: "【QQ音乐】",
		}, {
			name: "【网易云音乐】",
		}, {
			name: "【酷狗音乐】",
		}, {
			name: "【酷我音乐】",
		}, {
			name: "【哔哩哔哩】",
		}, {
			name: "【咪咕音乐】",
		}, {
			name: "【千千音乐】"
		}],
	},
	methods: {
		async insertAtCursor(myValue) {
			const myField = document.querySelector('#textarea')
			if (myField.selectionStart || myField.selectionStart === 0) {
				var startPos = myField.selectionStart
				var endPos = myField.selectionEnd
				this.content = myField.value.substring(0, startPos) + myValue + myField.value.substring(endPos, myField.value.length)
				await this.$nextTick() // 这句是重点, 圈起来
				myField.focus()
				myField.setSelectionRange(endPos + myValue.length, endPos + myValue.length)
			} else {
				this.content += myValue
			}
		},
	}
})

vue使用了element ui

<el-input type="textarea" :rows="2" placeholder="请输入内容" v-model="content" id="textarea"></el-input>
<div style="margin-left: 30px;">
	<ul v-for="(f,i) in friend_list">
		<li class="nameList" @click="insertAtCursor(f.name)">{{f.name}}</li>
	</ul>
</div>

new Vue({
	el: '#app',
	data: {
		content: '',
		friend_list: [{
			name: "【QQ音乐】",
		}, {
			name: "【网易云音乐】",
		}, {
			name: "【酷狗音乐】",
		}, {
			name: "【酷我音乐】",
		}, {
			name: "【哔哩哔哩】",
		}, {
			name: "【咪咕音乐】",
		}, {
			name: "【千千音乐】"
		}],
	},
	methods: {
		async insertAtCursor(myValue) {
			const myField = document.querySelector('#textarea textarea')
			if (myField.selectionStart || myField.selectionStart === 0) {
				var startPos = myField.selectionStart
				var endPos = myField.selectionEnd
				this.content = myField.value.substring(0, startPos) + myValue + myField.value.substring(endPos, myField.value.length)
				await this.$nextTick() // 这句是重点, 圈起来
				myField.focus()
				myField.setSelectionRange(endPos + myValue.length, endPos + myValue.length)
			} else {
				this.content += myValue
			}
		},
	}
})

效果图