有三层数组怎么和在一起？急急急 求大神zhi'dian

let arry = [
{name:'张三',
age:18,
list:[  
       {num:21,list1[{money:1,money2:',money3:4}]}
       {num:21,list1[{money:2,money2:'5',money3:''}]}
    ]
}
{name:'里斯',
age:19,
list:[
       {num:22,list1[{money:1,money2:''money3:''}]}
       {num:22,list1[{money:3,money2:'8',money3:10}]}
    ]
}
]

要求得到如下结果：
[
{name:'张三'，age:18,money:1,money2:'',money3:4}
{name:'张三'，age:18,money:2,money2:'5',money3:''}
{name:'里斯'，age:19,money:1,money2:'',money3:''}
{name:'里斯'，age:19,money:3,money2:'8',money3:10}
]

 //原数组
         let arr = [
            {
               name: '张三',
               age: 18,
               list: [
                  { num: 21, list1: [{ money: 1, money2: 6, money3: 4 }] },
                  { num: 21, list1: [{ money: 2, money2: '5', money3: '' }] }
               ]
            },
            {
               name: '里斯',
               age: 19,
               list: [
                  { num: 22, list1: [{ money: 1, money2: '', money3: '' }] },
                  { num: 22, list1: [{ money: 3, money2: '8', money3: 10 }] }
               ]
            }
         ];
        //得到的新数组
         let arr2 = [];
         arr.forEach((item, index) => {
            for (let i in item.list) {
               let obj = {}
               obj['name'] = item.name;
               obj['age'] = item.age;
               obj = Object.assign(obj, ...item.list[i].list1);
               arr2.push(obj)
            }
         });
         console.log(arr2)