插入排序（Java代码实现）

public class Paixu {
    public static void main(String[] args) {
        int[] arr = new int[]{9, 8, 7, 6, 5, 4, 3, 2, 1};
        int[] arrs = ChaRu(arr);
        System.out.println(Arrays.toString(arrs));
    }

    public static int[] ChaRu(int[] arr) {
        for (int i = 1; i < arr.length; i++) {
            int curr = arr[i];
            int temp = i - 1;
            while (temp >= 0 && curr < arr[temp]) {
                arr[temp + 1] = arr[temp];
                temp--;
            }
            arr[temp + 1] = curr;
        }
        return arr;
    }
}