demo1

 // 计算字数  dealWordCount(str) {    this.isChina(str);    if (this.wordCount > 245) {      return true;    } else {      return false;    }  }  // 判断是否是中文  isChina(str) {    this.wordCount = 0;    //let reg = new RegExp('[\\u4E00-\\u9FFF]+');    //reg.test(str) ? (this.wordCount += 2) : (this.wordCount += 1);    for (let i = 0; i < str.length; i++) {      str.charCodeAt(i) > 255 ? (this.wordCount += 2) : (this.wordCount += 1);    }  }

res.forEach(element => {          if (element.helperDesc) {            element.isShowAll = this.dealWordCount(element.helperDesc || '');            element.isOpen = false;          }        });

queryLists() {    if (this.isPageRefresh) return;    this.isPageRefresh = true;    let { tabId } = this.props,      { lists } = this.state,      that = this;    comApi      .queryBillHelperPic({ id: tabId, pageIndex: that.pageIndex, pageSize: that.pageSize })      .then(res => {        this.isPageRefresh = false;        if (!(res && res.length > 0)) return;        this.isRefreshBottom = res.length >= 10 ? true : false;        res.forEach(element => {          if (element.helperDesc) {            element.isShowAll = this.dealWordCount(element.helperDesc || '');            element.isOpen = false;          }        });        res = [...lists, ...res];        this.setState({          lists: res,        });        console.log('helper-lists', lists, tabId, res);      })      .catch(error => {        this.isPageRefresh = false;        this.showToast({ title: error.message || `服务器卡顿，请稍后再试` });      });  }