/// <summary>
/// 检查题目数据文件是否正确
/// </summary>
/// <param name="stream">题目数据文件流</param>
/// <returns>题目数据文件是否正确</returns>
public static Boolean CheckProblemDataFile(Stream stream)
{
try
{
ProblemDataReader reader = new ProblemDataReader(stream);
if (String.Equals(reader.LastModified, ProblemData.NO_PROBLEM_DATA_VERSION))
{
return(false);
}
return(true);
}
catch
{
return(false);
}
}
/// <summary>
/// 检查题目数据文件是否正确
/// </summary>
/// <param name="stream">题目数据文件流</param>
/// <returns>题目数据文件是否正确</returns>
public static Boolean CheckProblemDataFile(Stream stream)
{
try
{
ProblemDataReader reader = new ProblemDataReader(stream);
if (String.Equals(reader.LastModified, ProblemData.NO_PROBLEM_DATA_VERSION))
{
return false;
}
return true;
}
catch
{
return false;
}
}
/// <summary>
/// 获取题目数据最后更新日期
/// </summary>
/// <param name="pid">题目ID</param>
/// <returns>最后更新日期</returns>
public static String GetProblemDataVersion(Int32 pid)
{
String version = ProblemDataCache.GetProblemDataVersionCache(pid);
if (String.IsNullOrEmpty(version))
{
String filePath = GetProblemDataRealPath(pid);
if (!String.IsNullOrEmpty(filePath))
{
try
{
ProblemDataReader reader = new ProblemDataReader(filePath);
version = reader.LastModified;
}
catch { }
}
}
return version;
}