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格式化字符串与日期时间操作

最新推荐文章于 2024-07-08 12:25:00 发布

转载最新推荐文章于 2024-07-08 12:25:00 发布 · 87 阅读

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原文链接：http://www.cnblogs.com/20040583/archive/2008/10/09/1307193.html

using System;
class Sample
{
    enum Color {Yellow = 1, Blue, Green};

    static DateTime thisDate = DateTime.Now;

    public static void Main()
    {
        // Store the output of the String.Format method in a string.
        string s = "";

        // Format a negative integer or floating-point number in various ways.
        Console.WriteLine("Standard Numeric Format Specifiers");
        s = String.Format(
            "(C) Currency: . . . . . . . . {0:C} " +
            "(D) Decimal:. . . . . . . . . {0:D} " +
            "(E) Scientific: . . . . . . . {1:E} " +
            "(F) Fixed point:. . . . . . . {1:F} " +
            "(G) General:. . . . . . . . . {0:G} " +
            "    (default):. . . . . . . . {0} (default = 'G') " +
            "(N) Number: . . . . . . . . . {0:N} " +
            "(P) Percent:. . . . . . . . . {1:P} " +
            "(R) Round-trip: . . . . . . . {1:R} " +
            "(X) Hexadecimal:. . . . . . . {0:X} ",
            -123, -123.45f);
        Console.WriteLine(s);

        // Format the current date in various ways.
        Console.WriteLine("Standard DateTime Format Specifiers");
        s = String.Format(
            "(d) Short date: . . . . . . . {0:d} " +
            "(D) Long date:. . . . . . . . {0:D} " +
            "(t) Short time: . . . . . . . {0:t} " +
            "(T) Long time:. . . . . . . . {0:T} " +
            "(f) Full date/short time: . . {0:f} " +
            "(F) Full date/long time:. . . {0:F} " +
            "(g) General date/short time:. {0:g} " +
            "(G) General date/long time: . {0:G} " +
            "    (default):. . . . . . . . {0} (default = 'G') " +
            "(M) Month:. . . . . . . . . . {0:M} " +
            "(R) RFC1123:. . . . . . . . . {0:R} " +
            "(s) Sortable: . . . . . . . . {0:s} " +
            "(u) Universal sortable: . . . {0:u} (invariant) " +
            "(U) Universal sortable: . . . {0:U} " +
            "(Y) Year: . . . . . . . . . . {0:Y} ",
            thisDate);
        Console.WriteLine(s);

        // Format a Color enumeration value in various ways.
        Console.WriteLine("Standard Enumeration Format Specifiers");
        s = String.Format(
            "(G) General:. . . . . . . . . {0:G} " +
            "    (default):. . . . . . . . {0} (default = 'G') " +
            "(F) Flags:. . . . . . . . . . {0:F} (flags or integer) " +
            "(D) Decimal number: . . . . . {0:D} " +
            "(X) Hexadecimal:. . . . . . . {0:X} ",
            Color.Green);
        Console.WriteLine(s);
    }
}

转载于:https://www.cnblogs.com/20040583/archive/2008/10/09/1307193.html