通过enum ObjectType { UNKNOWN = 0, UNKNOWN_MOVABLE = 1, UNKNOWN_UNMOVABLE = 2, PEDESTRIAN = 3, BICYCLE = 4, VEHICLE = 5, MAX_OBJECT_TYPE = 6 }; double dist[MAX_OBJECT_TYPE][MAX_OBJECT_TYPE] = { {0.2, 0.3, 0.4, 0.5, 0.6, 1}, {0.3, 0.2, 0.3, 0.4, 0.5, 0.6}, {0.4, 0.3, 0.2, 0.3, 0.4, 0.5}, {0.5, 0.4, 0.3, 0.2, 0.3, 0.4}, {0.6, 0.5, 0.3, 0.4, 0.2, 0.3}, {1 , 0.6, 0.5, 0.4, 0.3, 0.2} };表格根据所选取的横纵输出对应值

如果您希望根据所选取的横纵坐标输出对应的距离值，可以按照以下方法实现：

#include <iostream>
using namespace std;

enum ObjectType {
    UNKNOWN = 0,
    UNKNOWN_MOVABLE = 1,
    UNKNOWN_UNMOVABLE = 2,
    PEDESTRIAN = 3,
    BICYCLE = 4,
    VEHICLE = 5,
    MAX_OBJECT_TYPE = 6
};

double dist[MAX_OBJECT_TYPE][MAX_OBJECT_TYPE] = {
    {0.2, 0.3, 0.4, 0.5, 0.6, 1},
    {0.3, 0.2, 0.3, 0.4, 0.5, 0.6},
    {0.4, 0.3, 0.2, 0.3, 0.4, 0.5},
    {0.5, 0.4, 0.3, 0.2, 0.3, 0.4},
    {0.6, 0.5, 0.3, 0.4, 0.2, 0.3},
    {1 , 0.6, 0.5, 0.4, 0.3, 0.2}
};

int main() {
    int x, y;
    cout << "Please input the x and y coordinates: ";
    cin >> x >> y;

    if (x < 0 || x >= MAX_OBJECT_TYPE || y < 0 || y >= MAX_OBJECT_TYPE) {
        cout << "Invalid coordinates!" << endl;
        return 0;
    }

    cout << "dist[" << x << "][" << y << "] = " << dist[x][y] << endl;

    return 0;
}

在上述代码中，我们首先通过`cin`输入用户所选取的横坐标和纵坐标，然后判断坐标是否合法（即是否在数组下标的范围内），如果合法则输出对应的距离值，否则提示坐标无效。