// 需求: 选取除去hobby以外的属性 let {hobby, ...selectProp} = {name: 'zhanhui', age: 26, hobby: 'xxxx'} // 结果selectProp 为 {name: 'zhanhui', age: 26}
let a = 1; let b = 2; [a,b] = [b,a]; console.log(a) // 2 console.log(b) // 1