在小程序实现多行拖拽排序功能，需要用到uniapp提供的内部插件,moveable-view。

首先，在页面中引入moveable-view插件，并初始化它。然后，在页面中创建多个盒子，并为每个盒子添加moveable-view组件。最后，通过监听moveable-view组件的拖拽事件，实现多行拖拽排序的功能。

效果图

主要代码如下

//拖拽开始
			handleDragStart(index) {
				this.currentIndex = index,
					this.firstX = this.list[index].x + 0.01,
					this.firstY = this.list[index].y + 0.01,
					this.activeIndex = index;
				this.oldIndex = index;
			},

			//拖拽中
			handleMoving(e) {
				if (e.detail.source !== 'touch' || !this.isEdit) return;
				const {
					x,
					y
				} = e.detail;
				const currentX = Math.floor((x + this.getItemWidth / 2) / this.getItemWidth);
				const currentY = Math.floor((y + this.getItemHeight / 2) / this.getItemHeight);

				this.moveToIndex = Math.min(currentY * this.column + currentX, this.list.length - 1);

				if (this.oldIndex !== this.moveToIndex && this.oldIndex !== -1 && this.moveToIndex !== -1) {

					this.hasChanged = true
					const newList = this.deepCopy(this.cloneList);
					// 交换位置
					newList.splice(this.moveToIndex, 0, ...newList.splice(this.activeIndex, 1));
					this.list.forEach((item, index) => {
						const itemIndex = newList.findIndex(val => val.name === item.name);
						if (index !== this.currentIndex) {
							[item.x, item.y] = this.getPosition(itemIndex);
						}
					});
					this.oldIndex = this.moveToIndex;
					if (this.moveToIndex == this.currentIndex) {
						this.hasChanged = false
					}
				} else {}
			},

			//拖拽结束
			handleDragEnd(e) {
				if (!this.isEdit) return;
				if (this.moveToIndex !== -1 && this.activeIndex !== -1 && this.moveToIndex !== this.activeIndex) {
					if (!this.hasChanged || (this.moveToIndex == this.currentIndex)) return
					this.cloneList.splice(this.moveToIndex, 0, ...this.cloneList.splice(this.activeIndex, 1));
					this.initList(this.cloneList);
					const endList = this.list.map(item => this.omit(item, ['x', 'y', 'key']));
					this.$emit('input', endList);
					this.$emit('end', endList);
					this.activeIndex = -1;
					this.oldIndex = -1;
					this.disabled = true;
					this.list.forEach((item, index) => {
						if (this.moveToIndex === index) {
							let y = Math.floor(index / 4) * 99.99
							if (y == 0) {
								item.y = 0.01
							} else {
								item.y = y
							}
						}
					})
					this.moveToIndex = -1;
					this.hasChanged = false
				} else {
					this.changeFirst(this.currentIndex, this.firstX, this.firstY)
				}
			},