在执行pickAttribute（）函数时，为什么changeNumber（）增加了setData函数，changeNumber（）函数会自动执行，且重复执行。逻辑上这两个函数是不发生关系的。pickAttribute: function (e) { if (this.data.tempOrder.count > 0 && this.data.goodsDetail.isAttribute) { console.log("968"); // this.checkingAttribute(); return }; if (this.data.tempOrder.count > 0 && !this.data.goodsDetail.isAttribute) { console.log("974"); this.setData({ showAttributes: true, }); return }; if (this.data.tempOrder.count <= 0) { console.log("982"); this.setData({ showAttributes: !this.data.showAttributes, }); return } },changeNumber: function (e) { const count = e.detail.count; console.log("count(640) => ", count); const bindType = e.detail.type; const enter = e.detail.enter; const goods = (enter === 'Detail') ? this.data.goodsDetail : e.detail.goods; const isAttribute = goods.isAttribute; const inList = this.data.goodsList.findIndex(item => { return item._id === goods._id }); if (!isAttribute) { this.setData({ [`goodsList${inList}.count`]: count, 'goodsDetail.count': count, }); console.log("goodsDetail(651) => ", this.data.goodsDetail); }; **//为什么加了这行代码会重复执行** //this.setData({ // 'tempOrder.count': count //}); console.log("tempOrder(656) => ", this.data.tempOrder); },