1. this.arrbooks.map((item, index) => {
    2.   if (this.content) {
    3.     let replaceReg = new RegExp(this.content, 'g');
    4.     let replaceString =
    5.         '<span style="color:red;">' + this.content + '</span>';
    6.     // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access, @typescript-eslint/no-unsafe-call
    7.     (this.arrbooks[index] as any).cuts = (item as any).cuts.replace(
    8.       replaceReg,
    9.       replaceString
    10.     );
    11.   }
    12.       });
    1. let replaceReg = new RegExp(this.content, 'g');// 全局匹配关键词
    2. let replaceString ='<span style="color:red;">' + this.content + '</span>';// 准备替换的内容
    3. (this.arrbooks[index] as any).cuts = (item as any).cuts.replace(replaceReg,replaceString);
    4. // 因为对象引用类型,属性改变自身也会改变,吧要替换的属性用正则替换