53 lines
1.7 KiB
C#
53 lines
1.7 KiB
C#
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using System;
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namespace Infrastructure.Extensions
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{
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public static class DateTimeExtension
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{
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/// <summary>
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/// 实现由C# 的时间到 Javascript 的时间的转换
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/// returns the number of milliseconds since Jan 1, 1970 (useful for converting C# dates to JS dates)
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/// </summary>
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/// <param name="dt"></param>
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/// <returns></returns>
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public static double UnixTicks(this DateTime dt)
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{
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DateTime d1 = new DateTime(1970, 1, 1);
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DateTime d2 = dt.AddHours(8).ToUniversalTime();
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TimeSpan ts = new TimeSpan(d2.Ticks - d1.Ticks);
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return ts.TotalMilliseconds;
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}
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/// <summary>
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/// 将毫秒值转成 C# DateTime 类型
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/// </summary>
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/// <param name="time"></param>
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/// <returns></returns>
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public static DateTime ConvertTime(this long time)
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{
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DateTime timeStamp = new DateTime(1970, 1, 1); //得到1970年的时间戳
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long t = (time + 8 * 60 * 60) * 10000000 + timeStamp.Ticks;
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DateTime dt = new DateTime(t);
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return dt;
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}
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/// <summary>
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/// 获取格式化字符串，不带时分秒，格式："yyyy-MM-dd"
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/// </summary>
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/// <param name="dateTime"></param>
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/// <returns></returns>
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public static string ToDateString(this DateTime? dateTime)
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{
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if (!dateTime.HasValue)
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{
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return string.Empty;
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}
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return dateTime.Value.ToDateString();
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}
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public static string ToDateString(this DateTime dateTime)
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{
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return dateTime.ToString("yyyy-MM-dd");
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}
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}
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}
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