如何在unity内使用StreamWriter类将Dictionary<int, CSV>存储为CSV？

可以使用StreamWriter类的WriteLine方法将Dictionary<int, CSV>中的每个键值对转换为CSV格式的字符串，然后写入CSV文件中。具体实现可以参考以下代码：

using System.Collections.Generic;
using System.IO;
using UnityEngine;

public class CSV
{
    public string name;
    public int age;
    public float score;

    public CSV(string name, int age, float score)
    {
        this.name = name;
        this.age = age;
        this.score = score;
    }

    public override string ToString()
    {
        return string.Format("{},{1},{2}", name, age, score);
    }
}

public class CSVWriter : MonoBehaviour
{
    private Dictionary<int, CSV> data = new Dictionary<int, CSV>();

    private void Start()
    {
        // 添加测试数据
        data.Add(1, new CSV("张三", 18, 90.5f));
        data.Add(2, new CSV("李四", 20, 85.f));
        data.Add(3, new CSV("王五", 22, 95.5f));

        // 写入CSV文件
        using (StreamWriter writer = new StreamWriter("test.csv"))
        {
            foreach (KeyValuePair<int, CSV> pair in data)
            {
                writer.WriteLine(pair.Value.ToString());
            }
        }
    }
}

以上代码将Dictionary<int, CSV>中的每个CSV对象转换为CSV格式的字符串，然后写入名为"test.csv"的文件中。