/// <summary>
/// 输出日志，可以指定是否缓存
/// </summary>
/// <param name="msg"></param>
/// <param name="issave"></param>
public static void WriteLog(string msg, bool issave)
{
// 增加线程锁。在多线程环境下，StringBuilder.Append方法有时会抛出System.ArgumentOutOfRangeException异常，导致软件崩溃。
if (Monitor.TryEnter(ThreadLock, 3000))
{
try
{
sb.AppendLine(Tools.GetDateTimeNowString());
sb.AppendLine(msg).AppendLine();
if (sb.Length > 1000 || issave)
{
string fileName = LogFile;
FileInfo file = new FileInfo(fileName);
StreamWriter w = new StreamWriter(file.FullName, true, System.Text.Encoding.UTF8);
w.Write(sb.ToString());
w.Flush();
w.Close();
w = null;
sb = new StringBuilder();
}
}
catch (ArgumentOutOfRangeException)
{
//有时在写日志到文件中时会出现异常System.ArgumentOutOfRangeException，导致软件崩溃
//因此当出现异常时，把之前的日志抛弃掉，以防日志过长
sb = new StringBuilder();
}
catch (Exception)
{
}
finally
{
Monitor.Exit(ThreadLock);
}
}
}