伪代码
INSERTION-SORT(A)
for j == 2 to A.length
key = A[j]
// Insert A[j] into the sorted sequence A[1 .. j - 1].
i = j - 1
while i > 0 and A[i] > key
A[i + 1] = A[i]
i = i - 1
A[i + 1] = key
C#实现
static void InsertionSort(int[] array)
{
for(int i = 1; i < array.Length; i++)
{
int key = array[i];
int j = i - 1;
while (j >= 0 && array[j] > key)
{
array[j + 1] = array[j];
j--;
}
array[j + 1] = key;
}
}