面试题第十题

function test(arr) {
    for (const key in arr) {
        if (typeof arr[key] == "object") {
            test(arr[key])
        } else if (key == 'name') {
            arr['dec'] = arr[key]
            delete arr[key]
        }else if(key=='id'){
            arr['num'] = arr[key]
            delete arr[key]
        }
    }
}