摘要: var arr1 = ['red','green']; var arr2 = arr1.slice(0);//复制 console.log(arr2)//['red','green']; arr1.push('black') ;//改变color1的值 console.log(arr2)//["re 阅读全文
posted @ 2020-08-24 09:46 青老师 阅读(179) 评论(0) 推荐(0) 编辑