et obj ={"a":1,"b":2} let n = {}; let m = []; for(let  i in obj){   n.name = i;  n.number =obj[i]; } console.log(n) => {name: "b", number: 2},  如何改進，讓m 的結果是 [{name: "a", number: 1},{name: "b", number: 2}]