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 `});
      });
  }