/// <summary>
/// 记录日志条目。
/// </summary>
/// <param name="logger">日志记录器。</param>
/// <param name="log">日志对象。</param>
/// <param name="ex">引起程序错误的异常。</param>
/// <param name="extensions">日志扩展信息（匿名对象）。</param>
internal static void Write(this ILogger logger, LogEntry log, Exception ex = null, object extensions = null)
{
var dir = extensions.ToDictionary();
log.AddRange(dir, false);
logger.Log(log.LogLevel, log.EventId, log, ex, LogFormatter);
}