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} };表格随机选取所需横纵轴输出对应值

如果您想随机选取横轴和纵轴对应的值，可以使用随机数生成器来实现。以下是一个简单的使用C++的例子：

#include <iostream>
#include <cstdlib>
#include <ctime>

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() {
    srand(time(NULL));  // 初始化随机数种子

    int x = rand() % MAX_OBJECT_TYPE;  // 随机生成横坐标
    int y = rand() % MAX_OBJECT_TYPE;  // 随机生成纵坐标

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

    return 0;
}

在上述代码中，我们使用了`rand()`函数来生成0到`MAX_OBJECT_TYPE-1`之间的随机整数作为横坐标和纵坐标，然后输出对应的距离值。由于随机数生成器是基于时间种子的，故我们需要在程序一开始使用`srand()`函数来初始化随机数种子。