点击标签给文本域（Textarea）赋值，文本域支持手动输入

第一步：状态中设置两个变量

state: {
    content: "", // 该值作为Textarea的value
    content2: "",
}

 第二步：点击评价标签执行方法

 // 设置详细评价
  handleRate = idx => {
    const { tagList, content, content2 } = this.state;
    const cyTagList = tagList.slice();
    const select_tagList = [];
    let cyContent = content;
 
    cyTagList[idx].active = !cyTagList[idx].active; // 高亮tag
 
    tagList.forEach(item => {
      if (item.active) {
        select_tagList.push(`#${item.name}`); // 添加选中的tag名称
      }
    });
 
    // 正则去除重复tag
    var reg1 = new RegExp("#服务热情", "g");
    var reg2 = new RegExp("#环境舒适", "g");
    var reg3 = new RegExp("#效率快", "g");
    var reg4 = new RegExp("#技术高", "g");
    var reg5 = new RegExp("#体验完美", "g");
    cyContent = cyContent.replace(reg1, "");
    cyContent = cyContent.replace(reg2, "");
    cyContent = cyContent.replace(reg3, "");
    cyContent = cyContent.replace(reg4, "");
    cyContent = cyContent.replace(reg5, "");
    cyContent = cyContent.replace(/\s*/g, "");
 
    this.setState({
      tagList: cyTagList,
      content: content.length
        ? `${select_tagList.join(" ")} ${cyContent}`
        : `${select_tagList.join(" ")} ${content2}`  // 设置文本域的值
    });
  };