不存在用户定义的从"std::pair<int,int>"到"point_t"的适当转换(point_t是struct结构体的名字)

typedef struct point
{
    int row;
    int col;
}point_t;

point_t actionAI(ChessData* data)
{
    calcScore(data);

    int maxScore = 0;
    std::vector<std::pair<int, int> > maxPoints;//容器

    int k = 0;

    for (int row = 0; row < BOARD_GRAD_SIZE; row++)
    {
        for (int col = 0; col < BOARD_GRAD_SIZE; col++)
        {
            if (data->chessMap[row][col] == 0)
            {
                if (data->scoreMap[row][col] > maxScore)
                {
                    maxPoints.clear();
                    k = 0;
                    maxPoints.push_back(std::make_pair(row, col));
                    k++;
                }
                else if (data->scoreMap[row][col] == maxScore)
                {
                    maxPoints.push_back(std::make_pair(row, col));
                    k++;
                }
            }
        }
    }

    srand((unsigned)time(0));
    int index = rand() % k;
    return maxPoints[index];
//返回报错，不存在用户定义的从"std::pair<int,int>"到"point_t"的适当转换(point_t是struct结构体的名字)
}

给point添加对应的构造函数试试

typedef struct point
{
    int row;
    int col;

    point() {}

    point(std::pair<int, int> data) {
        row = data.first;
        col = data.second;
    }

}point_t;