c# – 如果我返回一个Task并且没有等待任何事情,我应该使用async

除了潜在的不必要之外,这样做的负面影响是什么？

对于此示例,请假设QueryAsync< int>返回Task< int>.

private static async Task<int> InsertRecord_AsyncKeyword(SqlConnection openConnection)
{
    int autoIncrementedReferralId =
        await openConnection.QueryAsync<int>(@"
            INSERT INTO...
            SELECT CAST(SCOPE_IDENTITY() AS int)"
    );

    return autoIncrementedReferralId;
}

private static Task<int> InsertRecord_NoAsyncKeyword(SqlConnection openConnection)
{
    Task<int> task =
        openConnection.QueryAsync<int>(@"
            INSERT INTO...
            SELECT CAST(SCOPE_IDENTITY() AS int)"
    );

    return task;
}

// Top level method
using (SqlConnection connection = await DbConnectionFactory.GetOpenConsumerAppSqlConnectionAsync())
{
    int result1 = await InsertRecord_NoAsyncKeyword(connection);
    int result2 = await InsertRecord_AsyncKeyword(connection);
}