针对html字符串进行关键字高亮匹配

highlightKeyword(keyword, htmlString) {const str = keyword.trim().replace(/\s+/g, ',')const arr = str.split(',')const _arr = arr.map(val => {return val.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')})const regex = new RegExp(`(${_arr.join('|')})`, 'gi')const newHtmlString = htmlString.replace(regex, match => {this.totalCount += 1return `<span id="keyword_highlight_id_${this.totalCount}" style="color: #865224; background: #FCE5C7;">${match}</span>`})return newHtmlString
},