微信小程序修改数组中的键值对，或者增加一个键值对

items : [

{ findorgettime : "10-21" , imgUrl : "http://www.diyunlong.top//maven//upload//tmp_33e660c0174ce4632ec773583982de2b50f5f5b4ed8085ce.jpg" , itemclass : "招领" , itemclassbig : "钥匙" , itemclasssmall : "钥匙1" , itemmessage : "一抹夕阳去，乱了阵脚" , locationBig : "教学楼" , locationSmall : "1栋" , numbering : 7 , peopleqq : "58846587" , peopletel : "17754017059" , posttime : "2017-11-26 15:25:51" },

{ findorgettime : "10-21" , imgUrl : "http://www.diyunlong.top//maven//upload//tmp_33e660c0174ce4632ec773583982de2b50f5f5b4ed8085ce.jpg" , itemclass : "招领" , itemclassbig : "钥匙" , itemclasssmall : "钥匙1" , itemmessage : "一抹夕阳去，乱了阵脚" , locationBig : "教学楼" , locationSmall : "1栋" , numbering : 7 , peopleqq : "58846587" , peopletel : "17754017059" , posttime : "2017-11-26 15:25:51" },

{ findorgettime : "10-21" , imgUrl : "http://www.diyunlong.top//maven//upload//tmp_33e660c0174ce4632ec773583982de2b50f5f5b4ed8085ce.jpg" , itemclass : "招领" , itemclassbig : "钥匙" , itemclasssmall : "钥匙1" , itemmessage : "一抹夕阳去，乱了阵脚" , locationBig : "教学楼" , locationSmall : "1栋" , numbering : 7 , peopleqq : "58846587" , peopletel : "17754017059" , posttime : "2017-11-26 15:25:51" },

{ findorgettime : "10-21" , imgUrl : "http://www.diyunlong.top//maven//upload//tmp_33e660c0174ce4632ec773583982de2b50f5f5b4ed8085ce.jpg" , itemclass : "招领" , itemclassbig : "钥匙" , itemclasssmall : "钥匙1" , itemmessage : "一抹夕阳去，乱了阵脚" , locationBig : "教学楼" , locationSmall : "1栋" , numbering : 7 , peopleqq : "58846587" , peopletel : "17754017059" , posttime : "2017-11-26 15:25:51" },

{ findorgettime : "10-21" , imgUrl : "http://www.diyunlong.top//maven//upload//tmp_33e660c0174ce4632ec773583982de2b50f5f5b4ed8085ce.jpg" , itemclass : "招领" , itemclassbig : "钥匙" , itemclasssmall : "钥匙1" , itemmessage : "一抹夕阳去，乱了阵脚" , locationBig : "教学楼" , locationSmall : "1栋" , numbering : 7 , peopleqq : "58846587" , peopletel : "17754017059" , posttime : "2017-11-26 15:25:51" }, { findorgettime : "10-21" , imgUrl : "http://www.diyunlong.top//maven//upload//tmp_33e660c0174ce4632ec773583982de2b50f5f5b4ed8085ce.jpg" , itemclass : "寻物" , itemclassbig : "钥匙" , itemclasssmall : "钥匙1" , itemmessage : "一抹夕阳去，乱了阵脚" , locationBig : "教学楼" , locationSmall : "1栋" , numbering : 7 , peopleqq : "58846587" , peopletel : "17754017059" , posttime : "2017-11-26 15:25:51" }

], //存放获取的物品信息数组

我想要在每一个对象的后面增加一个键值对：color:red

那么，如果使用正常的赋值方法肯定是有问题的：

所以我们使用如下方法来解决这个问题：

如此以来就解决了！