数组序列化var arr=[1,2,3,4,{a:1}];console.log(arr,'原数组');// 数组序列化 将数组转化为字符串并且以‘,’形式隔开每一项var result=arr.toString();//1,2,3,4,[object Object]console.log(result,typeof result);// join 将数组转化为字符串// var result1=