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                        /React實(shí)戰(zhàn)--打造畫(huà)廊應(yīng)用（上）

Warning: Each child in an array or iterator should have a unique "key" prop. Check the render method of GalleryByReactApp. See https://fb.me/react-warning-keys for more information.

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請(qǐng)有大神知道這兩條報(bào)錯(cuò)的原因么？

render:?function?()?{
????var?imgFigures?=?[],
????????controllerUnits?=?[];

????imageDatas.forEach(function?(value,?index)?{

????????if?(!this.state.imgsArrangeArr[index])?{
????????????this.state.imgsArrangeArr[index]?=?{
????????????????pos:?{
????????????????????left:?0,
????????????????????top:?0
????????????????}
????????????};
????????}

????????imgFigures.push(<ImgFigure?data={value}?ref={'imgFigure'?+?index}?arrange={this.state.imgsArrangeArr[index]}/>);
????}.bind(this));


????return?(
????????<section?className="stage"?ref="stage">
????????????<section?className="img-sec">
????????????????{imgFigures}
????????????</section>
????????????<nav?className="controller-nav">
????????????????{controllerUnits}
????????????</nav>
????????</section>
????);
}