摘要: ```js let arr = [1,2,3] let newArr = [...arr] newArr.push(4) console.log(arr) // [1, 2, 3] console.log(newArr) //[1,2,3,4] let arr2 = [[1,2,3],[4,5,6] 阅读全文
posted @ 2023-09-07 23:29 菊子的别致生活园 阅读(121) 评论(0) 推荐(0)