织梦小说网站模板下载地址,网站策划是什么,网站的维护步骤,关于茶叶的网站模板免费下载当年在做go时#xff0c;很羡慕它的时间有微秒#xff0c;纳秒#xff0c;在做性能优化时#xff0c;能很小颗粒度的查看引入方法执行的时间#xff0c;当时.net的DateTime只有毫秒#xff08;虽然也有别的办法获取#xff09;。现在#xff0c;在最新的.NET7 Preview4… 当年在做go时很羡慕它的时间有微秒纳秒在做性能优化时能很小颗粒度的查看引入方法执行的时间当时.net的DateTime只有毫秒虽然也有别的办法获取。现在在最新的.NET7 Preview4中DateTime也有微秒和纳秒了倍感亲切。纳秒在百位上没有十位和个位但这也说明.NET在进化向高性能进化在乎微秒和百位纳秒了哈哈。下面是引入这两个时间单位的实现namespace System {public struct DateTime {public DateTime(int year, int month, int day, int hour, int minute, int second, int millisecond, int microsecond);public DateTime(int year, int month, int day, int hour, int minute, int second, int millisecond, int microsecond, System.DateTimeKind kind);public DateTime(int year, int month, int day, int hour, int minute, int second, int millisecond, int microsecond, System.Globalization.Calendar calendar);public int Microsecond { get; }public int Nanosecond { get; }public DateTime AddMicroseconds(double value);}public struct DateTimeOffset {public DateTimeOffset(int year, int month, int day, int hour, int minute, int second, int millisecond, int microsecond, System.TimeSpan offset);public DateTimeOffset(int year, int month, int day, int hour, int minute, int second, int millisecond, int microsecond, System.TimeSpan offset, System.Globalization.Calendar calendar);public int Microsecond { get; }public int Nanosecond { get; }public DateTimeOffset AddMicroseconds(double microseconds);}public struct TimeSpan {public const long TicksPerMicrosecond 10L;public const long NanosecondsPerTick 100L;public TimeSpan(int days, int hours, int minutes, int seconds, int milliseconds, int microseconds);public int Microseconds { get; }public int Nanoseconds { get; }public double TotalMicroseconds { get; }public double TotalNanoseconds { get; }public static TimeSpan FromMicroseconds(double microseconds);}public struct TimeOnly {public TimeOnly(int day, int hour, int minute, int second, int millisecond, int microsecond);public int Microsecond { get; }public int Nanosecond { get; }}
}
