插入排序_复习

void insert_sort( char* x, int n )
{
    int i, j, t;
    for ( i = 1; i < n; i++ )
    {
        for ( j = 0; j < i-1; j++ )
        {
            if ( x[i] <= x[j])
            {
                t = x[i];
                x[i] = x[j];
                x[j] = t;
            }
        }
    }
}