编辑代码

const arr = [{
    projectName: 'order',
    roleName: 'Emily',
    count: 500,
    payed: 80000
}, {
    projectName: 'selection',
    roleName: 'Emily',
    count: 500,
    payed: 80000
}, {
    projectName: 'menu',
    roleName: '徐海洋',
    n1: 110000,
    count: 500,
    payed: 80000
}]

const res = ['count', 'payed'].map(o => {
    const oo = {title: o};
    arr.forEach((obj) => {
        oo[obj.projectName] = obj[o];
    })
    return  oo;
})

console.log(res);