要想按ANSI编码格式来获取字符串的字节数,必须这样:
LenB(StrConv("1111徐", vbFromUnicode))
Dim?fs?As?New?System.IO.FileStream("D:\1.txt",?IO.FileMode.Open,?IO.FileAccess.Read)
Dim?re?As?New?System.IO.BinaryReader(fs)
MsgBox(buffer)
①.、实现上传按钮方法代码.
①.、字节数组转换为字符串
String strRead = new String(byBuffer);
strRead = String.copyValueOf(strRead.toCharArray(), 0, byBuffer.length]);
String strInput=abcdefg;
byBuffer= strInput.getBytes();
VB.NET打开二进制文件用fileopen完成,打开二进制文件的形式为:openmode.binary
读取二进制文件用的是fileget方法,写入二进制文件用的是fileput方法.
应用示例:将一批随机数保存在一个dat文件中,然后再将其提取到文本框中.
二进制文件的读写一批随机数的存取,程序为:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim x, i, fn As Integer
Dim s As String = ""
fn = FreeFile()
FileOpen(fn, "d:\data.dat", OpenMode.Binary)
x = Int(Rnd() * 100)
s = s + Str(x)
FilePut(fn, x)
Next
FileClose(fn)
TextBox1.Text = s
End Sub
Dim x, fn As Integer
Do While Not EOF(fn)
FileGet(fn, x)
s = s + Str(x) + " "
Loop
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