react ,寫了li的點擊事件，從子組件傳入父組件，this.props.onChange報錯，this.props.onChange is not a function；handleTabClick在初始化時已經(jīng)綁定了thishandleTabClick(activeIndex){    const prevIndex = this.state.prevIndex;    //如果當(dāng)前activeIndex 與傳入的activeIndex 不一致并且props中存在defaultActiveIndex時則更新     if(this.state.activeIndex !==activeIndex && 'defaultActiveIndex' in this.props){        this.setState({             activeIndex,             prevIndex,         });        // 更新后執(zhí)行回調(diào)函數(shù)，拋出當(dāng)前索引和上一次索引         this.props.onChange({activeIndex,prevIndex});     } }這個handleTabClick是父組件里的函數(shù)，傳到子組件，當(dāng)子組件點擊事件時觸發(fā)這個函數(shù)