let formData = {
    test01: {id: 1, name: ‘foo‘},
    test02: {id: 1, name: "史记"},
    test03: {id: 1, name: "汉书"}
};
let {
    test01: fei01, 
    test02: fei02, 
    test03: fei03, 
} = formData;

console.log(formData); // fei01,fei02,fei03 为新的变量...............
console.log(fei01); // {id: 1, name: ‘foo‘}
console.log(fei02); // {id: 1, name: "史记"}
console.log(fei03); // {id: 1, name: "汉书"}

let {test01, test02, test03,} = formData;
console.log(test01); // {id: 1, name: ‘foo‘}