this.setData 在 Object 中，怎么用？ - WXOPEN Club

菜单小程序使用云开发的功能

参数通道配置

let countMsg = "menu[" + groupindex + "].items[" + index + "].count";

let countly = this.data.menu[groupindex].items[index].count;

let foodCountMsg = "menu[" + groupindex + "].foodCount";

let foodCount = this.data.menu[groupindex].foodCount;

this.setData 功能

this.setData({

this.data.menu[groupindex].items[index].count,

[countMsg]: countly +1,

[foodCountMsg]: foodCount +1,

});

结果，foodCountMsg 没有问题。但是 countMsg 在 item Object 数据被删除

这个问题已经解决了。

下面是我用来解决问题的代码。

this.data.menu[groupindex].items[index].count = countly +1

var count = this.data.menu[groupindex].items[index].count

e.target.dataset.item.count = this.data.menu[groupindex].items[index].count

let menu = this.data.menu;

this.setData({

[foodCountMsg]: foodCount +1,

menu: menu

});