// 冒泡排序法-从大到小排序let itemSort = [8, 1, 4, 7, 3, 2, 9];for (let i = 0; i < itemSort.length; i++) {for (let y = i; y > 0; y--) {if (itemSort[y] > itemSort[y - 1]) {[itemSort[y - 1], itemSort[y]] = [itemSort[y], itemSort[y - 1]]}}}
// 冒泡排序法-从小到大排序let itemSort = [8, 1, 4, 7, 3, 2, 9];for (let i = 0; i < itemSort.length; i++) {for (let y = i; y > 0; y--) {if (itemSort[y] < itemSort[y - 1]) {[itemSort[y - 1], itemSort[y]] = [itemSort[y], itemSort[y - 1]]}}}