二维数组JSON.stringify 后，第二层数组解析为空

解决办法，把数组内的内容转为对象

/***解决jsonstr 二维数组转为空的问题  fhs 20.10.9*/
	var newreceActDataList=[];
	var oldreceActDataList =receActDataList;
	for(var i = 0 ; i < oldreceActDataList.length; i++){ 
		newreceActDataList[i]={};//对象
		newreceActDataList[i]['upload_id'] = oldreceActDataList[i]['upload_id'];
		newreceActDataList[i]['url'] = oldreceActDataList[i]['url'];
		newreceActDataList[i]['name'] = oldreceActDataList[i]['name'];
	}
receActDataList = newreceActDataList;