ASP.NET Tutorial/File Directory/Binary — различия между версиями

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Текущая версия на 11:57, 26 мая 2010

Reading and writing binary data (C#)

<%@ Page Language="C#" %>
<%@ Import Namespace="System.IO" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    protected void Page_Load(object sender, EventArgs e)
    {
        BinaryWriter binarywriter = new BinaryWriter(File.Create(@"Data.dat"));
        binarywriter.Write("a string");
        binarywriter.Write(0x12346789abcdef);
        binarywriter.Write(0x12345678);
        binarywriter.Write("c");
        binarywriter.Write(1.5f);
        binarywriter.Write(100.2m);
        binarywriter.Close();
        BinaryReader binaryreader = new BinaryReader(File.Open(@"Data.dat", FileMode.Open));
        string a = binaryreader.ReadString();
        long l = binaryreader.ReadInt64();
        int i = binaryreader.ReadInt32();
        char c = binaryreader.ReadChar();
        float f = binaryreader.ReadSingle();
        decimal d = binaryreader.ReadDecimal();
        binaryreader.Close();
    }
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    
    </div>
    </form>
</body>
</html>


Reading and writing binary data (VB)

<%@ Page Language="VB" %>
<%@ Import Namespace="System.IO" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
        Dim binarywriter As New BinaryWriter(File.Create("Data.dat"))
        binarywriter.Write("a string")
        binarywriter.Write(&H12346789ABCDEF)
        binarywriter.Write(&H12345678)
        binarywriter.Write("c"c)
        binarywriter.Write(1.5F)
        binarywriter.Write(100.2D)
        binarywriter.Close()
        Dim binaryreader As New BinaryReader(File.Open("Data.dat", FileMode.Open))
        Dim a As String = binaryreader.ReadString()
        Dim l As Long = binaryreader.ReadInt64()
        Dim i As Integer = binaryreader.ReadInt32()
        Dim c As Char = binaryreader.ReadChar()
        Dim f As Double = binaryreader.ReadSingle()
        Dim d As Decimal = binaryreader.ReadDecimal()
        binaryreader.Close()
    End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    
    </div>
    </form>
</body>
</html>
Источник — «http://nfex.ru/index.php?title=ASP.NET_Tutorial/File_Directory/Binary&oldid=2986»