?? ch12-04-02.aspx
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<Html>
<Head>
<Title>Ch12-04-02.aspx 日期與時間的運算</Title>
</Head>
<Body>
<H2>System.DateTime類-日期與時間的運算</H2>
<%
Dim NowTime As Date = DateTime.Now
Response.Write("今天日期與時間:" & NowTime.ToString() & "<BR>")
Response.Write("今年是否為閏年:" & NowTime.IsLeapYear(NowTime.Year) & "<BR>")
' 日期運算
Response.Write("年份運算,去年為:" & NowTime.AddYears(-1).ToString() & "<BR>")
Response.Write("年份運算,明年為:" & NowTime.AddYears(1).ToString() & "<BR>")
Response.Write("月份運算,上個月是:" & NowTime.AddMonths(-1).ToString() & "<BR>")
Response.Write("月份運算,下個月是:" & NowTime.AddMonths(1).ToString() & "<BR>")
Response.Write("日期運算,昨天:" & NowTime.AddDays(-1).ToString() & "<BR>")
Response.Write("日期運算,明天:" & NowTime.AddDays(1).ToString() & "<BR>")
' 時間運算
Response.Write("時間運算,一個小時之后:" & NowTime.AddHours(1).ToString() & "<BR>")
Response.Write("時間運算,五個小時之前:" & NowTime.AddHours(-5).ToString() & "<BR>")
Response.Write("時間運算,一分鐘之后:" & NowTime.AddMinutes(1).ToString() & "<BR>")
Response.Write("時間運算,五分鐘之前:" & NowTime.AddMinutes(-5).ToString() & "<BR>")
%>
</Body>
</Html>
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