js 数组和对象解构

//数组 - -
            
            //结构赋值
            // const arr = [[2,6,8],4,9]
            // let [a,b,c] = arr
            // console.log(a)  //2
            // console.log(b) //4
            // console.log(c) //9
            
            //交换变量
            // let a = 1
            // let b =4;  //分号一定要加  不按程序会以为 let b =4[b,a] = [a,b]  这样就会报错
            // [b,a] = [a,b]
            // console.log(a,b)
            
            // const [n1,[n2,n3]] = ['华为',['小米','酷派']]
            // console.log(n1);
            // console.log(n2);
            // console.log(n3);
            
            
            
            //对象
            
            const libai = {name:'你能',age:22}
            
            let {name}  = libai
            console.log(name)