// html = html +`${content.substring(firstP,indexArr[i])}<ahref="/topic/detail/${content.substring(indexArr[i]+1,indexArr[i+1])}">${content.substring(indexArr[i],indexArr[i+1]+1)}</a>`
// }
//
// if(indexArr.length%2!==0){
// html = html + `${ content.substring(indexArr[indexArr.length-1])}`;
//
// }else{
// html = html + `${ content.substring(indexArr[indexArr.length-1]+1)}`;