两个数组之间将数组内的引用类型对比，相同的放一个数组，不同的放一个数组。

//对比数据
let list = [{
    type: "default",
    spec_array: null,
    pths_supply_price: '11.8',
    ptbhs_supply_price: '11.8',
    pt_fee: "0.00",
    ylhs_supply_price: "14.50",
    ylbhs_supply_price: "13.50",
    yl_fee: "0.00",
    elhs_supply_price: "15.30",
    elbhs_supply_price: "14.50",
    el_fee: "0.00",
    pchs_price: "0.00",
    pcbhs_price: "0.00",
    ylpchs_price: "0.00",
    ylpcbhs_price: "0.00",
    elpchs_price: "0.00",
    elpcbhs_price: "0.00",
    tmall_price: "0.00",
    jd_price: "0.00",
    lowest_price: "0",
    hasoption: "0",
    create_time: "2020-09-07 10:10:45",
    carName: "居家日用 家庭清洁 ",
    seller_name: "福建省洁柔日化用品商贸有限公司",
    commend: [{
        id: "15",
        name: "茶叶",
        type: "3",
        icon: "upload/20200911/20200911105820445.jpg"
    },
    {
        id: "12",
        name: "网红直播",
        type: "0",
        icon: "upload/20200911/20200911105820445.jpg"
    }
    ]
},
{
    ylhs_supply_price: "14.50",
    ylbhs_supply_price: "13.50",
    yl_fee: "0.00",
    elhs_supply_price: "15.30",
    elbhs_supply_price: "14.50",
    el_fee: "0.00",
    pchs_price: "0.00",
    pcbhs_price: "0.00",
    ylpchs_price: "0.00",
    ylpcbhs_price: "0.00",
    elpchs_price: "0.00",
    elpcbhs_price: "0.00",
    tmall_price: "0.00",
    jd_price: "0.00",
    lowest_price: "0",
    hasoption: "0",
    create_time: "2020-09-07 10:10:45",
    carName: "居家日用 家庭清洁 ",
    seller_name: "福建省洁柔日化用品商贸有限公司",
    commend: [{
        id: "12",
        name: "网红直播",
        type: "0",
        icon: "upload/20200911/20200911105820445.jpg"
    }]
}
]


//对比数据
let tableList = [
    {
        id: "10",
        name: "新品推荐",
        status: "1",
        default: "0",
        type: "1",
        icon: "upload/20201029/20201029092322290.jpg"
    },
    {
        id: "12",
        name: "网红直播",
        status: "1",
        default: "0",
        type: "0",
        icon: "upload/20200911/20200911105820445.jpg"
    },
    {
        id: "14",
        name: "9.9",
        status: "0",
        default: "0",
        type: "3",
        icon: "upload/20201029/20201029092322290.jpg"
    },
    {
        id: "15",
        name: "茶叶",
        status: "1",
        default: "0",
        type: "3",
        icon: "upload/20200911/20200911105820445.jpg"
    },
    {
        id: "16",
        name: "电脑",
        status: "1",
        default: "1",
        type: "2",
        icon: "upload/20201029/20201029092322290.jpg"
    }
]


methods: {

     getlist(){
  let timeStamp = new Date().getTime();
            this.list.forEach((i, index) => {
              i.oneArr = [];
              i.twoArr = [];
              if (i.commend) { //这里做commend 非空判断，commend 不为空才执行下面的代码。
                let setArr = i.commend.map(item => item.name);
                let newshow = setArr.includes("9.9");  // 判断setArr 数组里面有没有‘9.9这个数据’
                if (
                  newshow === false &&
                  i.ptbhs_supply_price - i.pt_fee < 9.9
                ) { // 这里是判断setArr里面没有9.9那个数据且两个价格相减小于9.9 就将9.9 这个数据push到setArr里面
                  setArr.push("9.9");
                }
                let d = new Date(i.create_time); 
                let t = d.getTime(d);
                let totals = (timeStamp - t) / 1000;
                var day = parseInt(totals / (24 * 60 * 60));

                let days = setArr.includes("新品推荐");// 判断setArr 数组里面有没有‘新品推荐这个数据’
                if (days === false && day < 7) {
                  setArr.push("新品推荐");
                }
                this.tableDatast.forEach(k => {
                  if (setArr.includes(k.name)) { // 如果setArr 数组里面跟tableDatast 数组比较，如果name相同项，就push到oneArr 数组中。
                    this.list[index]["oneArr"].push(k); 
                  } else {  如果setArr 数组里面跟tableDatast 数组比较，如果name不相同项，就push到twoArr 数组中。
                    this.list[index]["twoArr"].push(k);
                  }
                });
              } else {  // commend  为空的话，就将tableDatast 所有的数据push 到list里面的twoArr 数组中
                this.tableDatast.forEach(p => {
                  this.list[index]["twoArr"].push(p);
                });
              }
            });
}

}