工作问题之四：文本框增加字数基数

// html
<el-input
	type="textarea"
	autosize
	size="mini"
	placeholder="最多48字"
	maxlength="48"
	v-model="detailInfoForm.brief_intro"
	class="input-box"
	@input="wordRemain"
/>
<span>{{ count }}/48</span>

// js
wordRemain() {
	let textLength = this.detailInfoForm.brief_intro.length;
	let detailTxtLength = this.detailInfoForm.detail_intro.length;
	this.count = 48 - textLength;
	this.detailCount = 200 - detailTxtLength;
},

如果有更好的办法，欢迎各位大佬指点