小程序实现多选框功能(2)

data: { imgUrl: imgUrl, title_disabled:true,//控制修改表头名字 management_good:false, select_all:false, middlearr:[], items: [ { name: '1', checked: false}, { name: '2', checked: false}, { name: '3', checked: false}, { name: '4', checked: false}, { name: '5', checked: false}, { name: '6', checked: false}, ], }, // 改变类目的名字 change_classname:function(){ let that = this; that.setData({ title_disabled: !that.data.title_disabled, }); // 这里自动获取焦点 }, finish_classname: function () { let that = this; that.setData({ title_disabled: !that.data.title_disabled, }) }, // 管理商品 management:function(){ let that = this; that.setData({ management_good: true, }) }, finish_management:function(){ let that = this; that.setData({ management_good:false, }) }, // 选择 select:function(e){ var that = this; let arr2 = []; if (that.data.management_good == false){ return; }else{ var arr = that.data.items; var index = e.currentTarget.dataset.id; arr[index].checked = !arr[index].checked; console.log(arr); for(let i=0;i<arr.length;i++){ if(arr[i].checked){ arr2.push(arr[i]) } }; that.setData({ items: arr, middlearr:arr2 }) } }, // 删除 deleteitem:function(){ var that = this; let arr = that.data.items; let arr2 = []; console.log(arr); for(let i=0;i<arr.length;i++){ if (arr[i].checked == false){ arr2.push(arr[i]); } } that.setData({ items:arr2, middlearr:[] }) }, // 全选 select_all:function(){ let that = this; that.setData({ select_all: !that.data.select_all }) if (that.data.select_all){ let arr = that.data.items; let arr2 = []; for (let i = 0; i < arr.length; i++) { if (arr[i].checked == true) { arr2.push(arr[i]); }else{ arr[i].checked = true; arr2.push(arr[i]); } } that.setData({ items: arr2, middlearr:arr2 }) } }, // 取消全选 select_none:function(){ let that = this; that.setData({ select_all: !that.data.select_all }) let arr = that.data.items; let arr2 = []; for (let i = 0; i < arr.length; i++) { arr[i].checked = false; arr2.push(arr[i]); } that.setData({ items: arr2, middlearr:[] }) },