> ## Documentation Index
> Fetch the complete documentation index at: https://devdocs.xbox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# 获取基于事件的统计信息

> 用于读取 XBOX Live 基于事件的统计信息的 XSAPI 示例代码，包括跨用户和 SCID 的批处理查询，以最大限度地减少服务调用。

<a id="top" />

本主题提供获取基于事件的统计信息的示例代码。

API 提供了各种级别的批处理来获取基于事件的统计信息。
最佳做法是通过使用适合您需求的批量 API 来进行尽可能少的调用。

本主题涵盖以下内容：

* [获取单个用户和单个 SCID 的单个统计信息](#ID4EM1)
* [获取单个用户和单个 SCID 的多个统计信息](#ID4EM2)
* [获取多个用户和单个 SCID 的多个统计信息](#ID4EM3)
* [获取多个用户跨多个 SCID 的多个统计信息](#ID4EM4)

您还可以[订阅统计信息更改](/services/xbox-services/player-data/stats-leaderboards/event-based/how-to/live-handling-eb-stat-change)。

<a id="ID4EM1" />

## 获取单个用户和单个 SCID 的单个统计信息

以下示例代码演示如何读取单个用户统计信息。

#### 扁平 C API

```cpp theme={null}
auto asyncBlock = std::make_unique<XAsyncBlock>();
asyncBlock->queue = queue;
asyncBlock->callback = [](XAsyncBlock* asyncBlock)
{
    std::unique_ptr<XAsyncBlock> asyncBlockPtr{ asyncBlock }; // Take over ownership of the XAsyncBlock*.
    size_t resultSize;
    HRESULT hr = XblUserStatisticsGetSingleUserStatisticResultSize(asyncBlock, &resultSize);

    if (SUCCEEDED(hr))
    {
        std::vector<char> buffer(resultSize, 0);
        XblUserStatisticsResult* result{};

        hr = XblUserStatisticsGetSingleUserStatisticResult(asyncBlock, resultSize, buffer.data(), &result, nullptr);

        if (SUCCEEDED(hr) && result->serviceConfigStatisticsCount > 0 && result->serviceConfigStatistics->statisticsCount > 0)
        {
            int64_t userStatValue = atoll(result->serviceConfigStatistics[0].statistics[0].value);
            // You can now show or store userStatValue.
        }
    }
};

HRESULT hr = XblUserStatisticsGetSingleUserStatisticAsync(
    xboxLiveContext,
    xboxUserId,
    scid,
    statisticName.c_str(),
    asyncBlock.get()
);
if (SUCCEEDED(hr))
{
    // The call succeeded, so release the std::unique_ptr ownership of XAsyncBlock* because the callback will take over ownership.
    // If the call fails, the std::unique_ptr will keep ownership and delete the XAsyncBlock*.
    asyncBlock.release();
}
```

有关详细信息，请参阅以下内容：

* [XAsyncBlock](/reference/system/xasync/structs/xasyncblock)
* [XblUserStatisticsGetSingleUserStatisticAsync](/reference/live/xsapi-c/user_statistics_c/functions/xbluserstatisticsgetsingleuserstatisticasync)
* [XblUserStatisticsGetSingleUserStatisticResult](/reference/live/xsapi-c/user_statistics_c/functions/xbluserstatisticsgetsingleuserstatisticresult)
* [XblUserStatisticsGetSingleUserStatisticResultSize](/reference/live/xsapi-c/user_statistics_c/functions/xbluserstatisticsgetsingleuserstatisticresultsize)
* [XblUserStatisticsResult](/reference/live/xsapi-c/user_statistics_c/structs/xbluserstatisticsresult)

[返回本主题顶部。](#top)

<a id="ID4EM2" />

## 获取单个用户和单个 SCID 的多个统计信息

以下示例代码演示如何在一次 HTTP 调用中读取单个用户的多个统计信息。

#### 扁平 C API

```cpp theme={null}
auto asyncBlock = std::make_unique<XAsyncBlock>();
asyncBlock->queue = queue;
asyncBlock->callback = [](XAsyncBlock* asyncBlock)
{
    std::unique_ptr<XAsyncBlock> asyncBlockPtr{ asyncBlock }; // Take over ownership of the XAsyncBlock*.
    size_t resultSize;
    HRESULT hr = XblUserStatisticsGetSingleUserStatisticsResultSize(asyncBlock, &resultSize);

    if (SUCCEEDED(hr))
    {
        std::vector<char> buffer(resultSize, 0);
        XblUserStatisticsResult* results{};

        hr = XblUserStatisticsGetSingleUserStatisticsResult(asyncBlock, resultSize, buffer.data(), &results, nullptr);
        if (SUCCEEDED(hr))
        {
            // You can now use the XblUserStatisticsResult array in results.
        }
    }

};

const char* statisticNames[2] = {};
statisticNames[0] = statisticName1.c_str();
statisticNames[1] = statisticName2.c_str();

HRESULT hr = XblUserStatisticsGetSingleUserStatisticsAsync(
    xboxLiveContext,
    xboxUserId,
    scid,
    statisticNames, 2, 
    asyncBlock.get()
);
if (SUCCEEDED(hr))
{
    // The call succeeded, so release the std::unique_ptr ownership of XAsyncBlock* because the callback will take over ownership.
    // If the call fails, the std::unique_ptr will keep ownership and delete the XAsyncBlock*.
    asyncBlock.release();
}

```

有关详细信息，请参阅以下内容：

* [XAsyncBlock](/reference/system/xasync/structs/xasyncblock)
* [XblUserStatisticsGetSingleUserStatisticAsync](/reference/live/xsapi-c/user_statistics_c/functions/xbluserstatisticsgetsingleuserstatisticasync)
* [XblUserStatisticsGetSingleUserStatisticResult](/reference/live/xsapi-c/user_statistics_c/functions/xbluserstatisticsgetsingleuserstatisticresult)
* [XblUserStatisticsGetSingleUserStatisticResultSize](/reference/live/xsapi-c/user_statistics_c/functions/xbluserstatisticsgetsingleuserstatisticresultsize)
* [XblUserStatisticsResult](/reference/live/xsapi-c/user_statistics_c/structs/xbluserstatisticsresult)

[返回本主题顶部。](#top)

<a id="ID4EM3" />

## 获取多个用户和单个 SCID 的多个统计信息

以下示例代码演示如何在一次 HTTP 调用中读取多个用户的多个统计信息。

#### 扁平 C API

```cpp theme={null}
auto asyncBlock = std::make_unique<XAsyncBlock>();
asyncBlock->queue = queue;
asyncBlock->callback = [](XAsyncBlock* asyncBlock)
{
    std::unique_ptr<XAsyncBlock> asyncBlockPtr{ asyncBlock }; // Take over ownership of the XAsyncBlock*.
    size_t resultSize;
    HRESULT hr = XblUserStatisticsGetMultipleUserStatisticsResultSize(asyncBlock, &resultSize);

    if (SUCCEEDED(hr))
    {
        std::vector<char> buffer(resultSize, 0);
        XblUserStatisticsResult* results{};
        size_t resultsCount = 0;

        hr = XblUserStatisticsGetMultipleUserStatisticsResult(asyncBlock, resultSize, buffer.data(), &results, &resultsCount, nullptr);

        // Process results array to read the user stats data.
        for (size_t iResult = 0; iResult < resultsCount; iResult++)
        {
            LogToFile("%d", results[iResult].xboxUserId);
            for (size_t iScid = 0; iScid < results[iResult].serviceConfigStatisticsCount; iScid++)
            {
                LogToFile("SCID: %s", results[iResult].serviceConfigStatistics[iScid].serviceConfigurationId);
                for (size_t iStat = 0; iStat < results[iResult].serviceConfigStatistics[iScid].statisticsCount; iStat++)
                {
                    LogToFile("Stat %d: name:%s value:%s type:%s", iResult,
                        results[iResult].serviceConfigStatistics[iScid].statistics[iStat].statisticName,
                        results[iResult].serviceConfigStatistics[iScid].statistics[iStat].value,
                        results[iResult].serviceConfigStatistics[iScid].statistics[iStat].statisticType );
                }
            }
        }
    }

};

const char* statisticNames[2] = {};
statisticNames[0] = statisticName1.c_str();
statisticNames[1] = statisticName2.c_str();

uint64_t xuids[2] = {};
xuids[0] = xuid1;
xuids[1] = xuid2;

HRESULT hr = XblUserStatisticsGetMultipleUserStatisticsAsync(
    xboxLiveContext,
    xuids, 2,
    scid,
    statisticNames, 2,
    asyncBlock.get()
);
if (SUCCEEDED(hr))
{
    // The call succeeded, so release the std::unique_ptr ownership of XAsyncBlock* because the callback will take over ownership.
    // If the call fails, the std::unique_ptr will keep ownership and delete the XAsyncBlock*.
    asyncBlock.release();
}
```

有关详细信息，请参阅以下内容：

* [XAsyncBlock](/reference/system/xasync/structs/xasyncblock)
* [XblUserStatisticsGetMultipleUserStatisticsAsync](/reference/live/xsapi-c/user_statistics_c/functions/xbluserstatisticsgetmultipleuserstatisticsasync)
* [XblUserStatisticsGetMultipleUserStatisticsResult](/reference/live/xsapi-c/user_statistics_c/functions/xbluserstatisticsgetmultipleuserstatisticsresult)
* [XblUserStatisticsGetMultipleUserStatisticsResultSize](/reference/live/xsapi-c/user_statistics_c/functions/xbluserstatisticsgetmultipleuserstatisticsresultsize)
* [XblUserStatisticsResult](/reference/live/xsapi-c/user_statistics_c/structs/xbluserstatisticsresult)

[返回本主题顶部。](#top)

<a id="ID4EM4" />

## 获取多个用户跨多个 SCID 的多个统计信息

以下示例代码演示如何使用 XBOX 服务 API (XSAPI) 通过一次调用为多个用户读取来自单个服务配置的多个统计信息。

#### 扁平 C API

```cpp theme={null}
auto asyncBlock = std::make_unique<XAsyncBlock>();
asyncBlock->queue = queue;
asyncBlock->callback = [](XAsyncBlock* asyncBlock)
{
    std::unique_ptr<XAsyncBlock> asyncBlockPtr{ asyncBlock }; // Take over ownership of the XAsyncBlock*.
    size_t resultSize;
    HRESULT hr = XblUserStatisticsGetMultipleUserStatisticsForMultipleServiceConfigurationsResultSize(asyncBlock, &resultSize);

    if (SUCCEEDED(hr))
    {
        std::vector<char> buffer(resultSize, 0);
        XblUserStatisticsResult* results{};
        size_t resultsCount = 0;

        hr = XblUserStatisticsGetMultipleUserStatisticsForMultipleServiceConfigurationsResult(asyncBlock, resultSize, buffer.data(), &results, &resultsCount, nullptr);

        if (SUCCEEDED(hr))
        {
            for (size_t i = 0; i < resultsCount; i++)
            {
                // Log results.
                std::stringstream stream;
                stream << "XUID: " << results[i].xboxUserId << std::endl;;

                for (size_t j = 0; j < results[i].serviceConfigStatisticsCount; j++)
                {
                    stream << " " << results[i].serviceConfigStatistics[j].serviceConfigurationId << ": " << std::endl;
                    for (size_t k = 0; k < results[i].serviceConfigStatistics[j].statisticsCount; k++)
                    {
                        stream << " " << results[i].serviceConfigStatistics[j].statistics[k].statisticName << "=" << results[i].serviceConfigStatistics[j].statistics[k].value << std::endl;
                    }
                }
            }
        }
    }

};

const char* requestedStatsNames1[2] = {};
requestedStatsNames1[0] = statisticName1.c_str();
requestedStatsNames1[1] = statisticName2.c_str();

XblRequestedStatistics requestedStats[1] = {};
pal::strcpy(requestedStats[0].serviceConfigurationId, sizeof(XblRequestedStatistics::serviceConfigurationId), scid);
requestedStats[0].statistics = requestedStatsNames1;
requestedStats[0].statisticsCount = 2;

uint64_t xuids[2] = {};
xuids[0] = xuid1;
xuids[1] = xuid2;
    
HRESULT hr = XblUserStatisticsGetMultipleUserStatisticsForMultipleServiceConfigurationsAsync(
    xboxLiveContext,
    xuids, 2,
    requestedStats, 1,
    asyncBlock.get()
);
if (SUCCEEDED(hr))
{
    // The call succeeded, so release the std::unique_ptr ownership of XAsyncBlock* because the callback will take over ownership.
    // If the call fails, the std::unique_ptr will keep ownership and delete the XAsyncBlock*.
    asyncBlock.release();
}
```

有关详细信息，请参阅以下内容：

* [XAsyncBlock](/reference/system/xasync/structs/xasyncblock)
* [XblRequestedStatistics](/reference/live/xsapi-c/user_statistics_c/structs/xblrequestedstatistics)
* [XblUserStatisticsGetMultipleUserStatisticsForMultipleServiceConfigurationsAsync](/reference/live/xsapi-c/user_statistics_c/functions/xbluserstatisticsgetmultipleuserstatisticsformultipleserviceconfigurationsasync)
* [XblUserStatisticsGetMultipleUserStatisticsForMultipleServiceConfigurationsResult](/reference/live/xsapi-c/user_statistics_c/functions/xbluserstatisticsgetmultipleuserstatisticsformultipleserviceconfigurationsresult)
* [XblUserStatisticsGetMultipleUserStatisticsForMultipleServiceConfigurationsResultSize](/reference/live/xsapi-c/user_statistics_c/functions/xbluserstatisticsgetmultipleuserstatisticsformultipleserviceconfigurationsresultsize)
* [XblUserStatisticsResult](/reference/live/xsapi-c/user_statistics_c/structs/xbluserstatisticsresult)

## 另请参阅

[发送事件](/services/xbox-services/player-data/stats-leaderboards/event-based/events/how-to/live-sending-an-event)
[user\_statistics\_c 头文件](/reference/live/xsapi-c/user_statistics_c/user_statistics_c_members)

[返回本主题顶部。](#top)


## Related topics

- [基于事件的统计信息与排行榜示例代码](/zh-CN/services/xbox-services/player-data/stats-leaderboards/event-based/how-to/live-statslb-eb-howto-nav.md)
- [处理基于事件的统计信息变更](/zh-CN/services/xbox-services/player-data/stats-leaderboards/event-based/how-to/live-handling-eb-stat-change.md)
- [基于事件的统计信息与标题管理的统计信息](/zh-CN/services/xbox-services/player-data/stats-leaderboards/live-stats-eb-vs-tm.md)
- [基于事件的统计信息概述](/zh-CN/services/xbox-services/player-data/stats-leaderboards/event-based/live-stats-eb-overview.md)
- [基于事件的统计信息和排行榜](/zh-CN/services/xbox-services/player-data/stats-leaderboards/event-based/live-statslb-eb-nav.md)