循环中push覆盖数据问题记录

var showData=[];

let show1={Id:'',SeriesName:'',ProductCategory:[]};

let show2={Id:'',SeriesName:''};

if(res.data.Code==200){
    for(let i=0;i<result.length;i++){
        
        show1.Id=result[i].Id;
        show1.SeriesName=result[i].SeriesName;
        for(let j=0;j<result[i].ProductCategory.length;j++){
            
            show2.Id=result[i].ProductCategory[j].Id;
            show2.SeriesName=result[i].ProductCategory[j].CategoryName;
            show1.ProductCategory.push(show2);
        }
        showData.push(show1);
    }

像这样写是会覆盖的，因为地址没变。所以为了每次循环都有新的地址要这样写：

if(res.data.Code==200){
    for(let i=0;i<result.length;i++){
        let show1={Id:'',SeriesName:'',ProductCategory:[]};
        show1.Id=result[i].Id;
        show1.SeriesName=result[i].SeriesName;
        for(let j=0;j<result[i].ProductCategory.length;j++){
            let show2={Id:'',SeriesName:''};
            show2.Id=result[i].ProductCategory[j].Id;
            show2.SeriesName=result[i].ProductCategory[j].CategoryName;
            show1.ProductCategory.push(show2);
        }
        showData.push(show1);
    }
    this.options2=showData;
}