/**
 * 冒泡排序
 * @param arr
 */
export function bubbleSort(arr: Array<number>) {
    const len = arr.length;
    for (let i = 0; i < len - 1; i++) {
        for (let j = 0; j < len - 1 - i; j++) {
            if (arr[j] > arr[j + 1]) {
                const temp = arr[j + 1];
                arr[j + 1] = arr[j];
                arr[j] = temp;
            }
        }
    }
    return arr;
}