在C#中遍历Steam API JSON数据，计算总游戏时长

你可以通过遍历games数组中的每个游戏对象，提取playtime_forever字段并累加求和，完成需求。以下是修改后的完整代码：

public const string APIKey = ProtectedAPIKey.APIKey;

public const string SteamGamesAPILink = $"https://api.steampowered.com/IPlayerService/GetOwnedGames/v1?key={APIKey}&steamid=76561198871868188";
public const string SteamLevelAPILink = $"https://api.steampowered.com/IPlayerService/GetSteamLevel/v1?key={APIKey}&steamid=76561198871868188";

static WebClient wc = new();

public static void Main()
{
    byte[] SteamGamesAPIResponse = wc.DownloadData(SteamGamesAPILink);
    byte[] SteamLevelAPIResponse = wc.DownloadData(SteamLevelAPILink);

    string SteamLevelAPIResponseString = Encoding.Default.GetString(SteamLevelAPIResponse);
    string SteamGamesAPIResponseString = Encoding.Default.GetString(SteamGamesAPIResponse);

    var levelRoot = JToken.Parse(SteamLevelAPIResponseString);
    var gamesRoot = JToken.Parse(SteamGamesAPIResponseString);

#pragma warning disable CS8604
    var games = gamesRoot
        .SelectToken("response")
        .SelectToken("games");
#pragma warning restore CS8604

    // 计算总游玩时长（分钟）
    int totalPlaytimeMinutes = 0;
    if (games != null && games.Type == JTokenType.Array)
    {
        foreach (var game in games)
        {
            int playtime = game.SelectToken("playtime_forever")?.Value<int>() ?? 0;
            totalPlaytimeMinutes += playtime;
        }
    }

    // 转换为小时（可选，提升可读性）
    double totalPlaytimeHours = Math.Round(totalPlaytimeMinutes / 60.0, 2);

    var level = levelRoot
        .SelectToken("response")
        .SelectToken("player_level");

    Console.ForegroundColor = ConsoleColor.Blue;
    Console.WriteLine($"Player level: {level}");
    Console.WriteLine($"Total playtime (minutes): {totalPlaytimeMinutes}");
    Console.WriteLine($"Total playtime (hours): {totalPlaytimeHours}");
}

关键逻辑说明： #

• 先校验games的有效性，确保它是数组类型，避免空引用或类型错误
• 遍历每个游戏对象，用SelectToken提取playtime_forever字段，通过?? 0处理字段缺失的情况，保证代码稳定性
• 累加所有游戏的时长得到总分钟数，额外转换为小时数可以让输出更直观
• 最后将总时长结果输出到控制台

内容的提问来源于stack exchange，提问作者rudynakodach