using Rhea.Common;
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace Tiger.Business.MESTests
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{
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[TestClass()]
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public class MesTests
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{
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[TestMethod()]
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public void CommonTest()
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{
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var date = new DateTime(2021,1,2);
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var firstDay = new DateTime(date.Year, 1, 1);
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int daysOffset = firstDay.DayOfWeek.GetValue() > 3 ? (firstDay.DayOfWeek.GetValue() - 7) : 0;
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int year = date.Year + ((date - firstDay).TotalDays + daysOffset < 0 ? -1 : 0);
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int week = CultureInfo.CurrentCulture.Calendar.GetWeekOfYear(date, CalendarWeekRule.FirstFourDayWeek, DayOfWeek.Sunday);
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var str = $"{year.ToString().Substring(2, 2)}{week:00}";
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;
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}
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}
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}
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