基本声明
Public NumBase(5) As Long '通达信格式基数
Public NumUnit(4) As Long '每单位对应的16进制数
Public NumUnitPrice(4) As Long '每单位对于的10进制数,已被从元为单位扩大1000倍
基本模块
Public Sub intTDXelg()
NumBase(0) = 1065353216 : NumBase(1) = 1082130432 : NumBase(2) = 1090519040 : NumBase(3) = 1098907648 : NumBase(4) = 1109655552 ': NumBase(5) = 1118830592
NumUnit(0) = 4194304 : NumUnit(1) = 2097152 : NumUnit(2) = 1048576 : NumUnit(3) = 524288 ': NumUnit(4) = 262144
NumUnitPrice(0) = 0 : NumUnitPrice(1) = 4000 : NumUnitPrice(2) = 8000 : NumUnitPrice(3) = 16000 ': NumUnitPrice(4) = 32000
End Sub
NumBase(0) = 1065353216 : NumBase(1) = 1082130432 : NumBase(2) = 1090519040 : NumBase(3) = 1098907648 : NumBase(4) = 1109655552 ': NumBase(5) = 1118830592
NumUnit(0) = 4194304 : NumUnit(1) = 2097152 : NumUnit(2) = 1048576 : NumUnit(3) = 524288 ': NumUnit(4) = 262144
NumUnitPrice(0) = 0 : NumUnitPrice(1) = 4000 : NumUnitPrice(2) = 8000 : NumUnitPrice(3) = 16000 ': NumUnitPrice(4) = 32000
End Sub
在form load 事件中调用intTDXelg
Public Structure stockDayRecord '保存一门股票的日数据信息
Dim stockdate As Date
Dim openor As Single
Dim hightor As Single
Dim lowor As Single
Dim endor As Single
Dim changor As Integer
Dim id As Integer
Dim VbP As Integer
End Structure
Dim stockdate As Date
Dim openor As Single
Dim hightor As Single
Dim lowor As Single
Dim endor As Single
Dim changor As Integer
Dim id As Integer
Dim VbP As Integer
End Structure
Public Function getRealPrice(ByVal formerPrice As Long) As Long '注意移植此函数是要把公共变量NumBase预NumUnit移动移植
Dim i As Integer
For i = 1 To 4 '该函数可返回32元人民币以下对于的准确价格
If formerPrice < NumBase(i) Then
getRealPrice = (Val((formerPrice - NumBase(i - 1)) & "000") / NumUnit(i - 1)) + NumUnitPrice(i - 1)
Exit For ' & 000 相当于 * 1000,以‰为单位
End If
Next i
End Function
Dim i As Integer
For i = 1 To 4 '该函数可返回32元人民币以下对于的准确价格
If formerPrice < NumBase(i) Then
getRealPrice = (Val((formerPrice - NumBase(i - 1)) & "000") / NumUnit(i - 1)) + NumUnitPrice(i - 1)
Exit For ' & 000 相当于 * 1000,以‰为单位
End If
Next i
End Function
读取模块
Function LoadDayData(ByVal filename As String, ByRef dr() As stockDayRecord, ByVal t As Short) As Long
'股票读取接口,第一个参数为装载股票数据的结构体
Dim fs As FileStream = File.OpenRead(filename)
Dim br As New BinaryReader(fs)
Dim n As Integer
Dim i As Integer, j As Integer
Select Case t
Case 1 '中天
Case 2 '通达信 暂时不用
n = (fs.Length - 4) / 32
LoadDayData = n
ReDim dr(n)
br.ReadInt32() '文件头到底是什么,另外是头天顺序颠放到了某个地方
For i = 1 To n
Dim d As Integer = br.ReadInt32()
dr(i).stockdate = DateSerial(d / 10000, (d Mod 10000) / 100, d Mod 100)
dr(i).openor = getRealPrice(br.ReadInt32) / 1000
dr(i).hightor = getRealPrice(br.ReadInt32) / 1000
dr(i).lowor = getRealPrice(br.ReadInt32) / 1000
dr(i).endor = getRealPrice(br.ReadInt32) / 1000
br.ReadInt32()
dr(i).changor = br.ReadInt32
dr(i).id = i
If (dr(i).hightor <> dr(i).lowor) Then dr(i).VbP = dr(i).changor / ((dr(i).hightor - dr(i).lowor) * 1000)
br.ReadInt32()
Next
End Select
fs.Dispose()
LoadDayData = j
End Function
'股票读取接口,第一个参数为装载股票数据的结构体
Dim fs As FileStream = File.OpenRead(filename)
Dim br As New BinaryReader(fs)
Dim n As Integer
Dim i As Integer, j As Integer
Select Case t
Case 1 '中天
Case 2 '通达信 暂时不用
n = (fs.Length - 4) / 32
LoadDayData = n
ReDim dr(n)
br.ReadInt32() '文件头到底是什么,另外是头天顺序颠放到了某个地方
For i = 1 To n
Dim d As Integer = br.ReadInt32()
dr(i).stockdate = DateSerial(d / 10000, (d Mod 10000) / 100, d Mod 100)
dr(i).openor = getRealPrice(br.ReadInt32) / 1000
dr(i).hightor = getRealPrice(br.ReadInt32) / 1000
dr(i).lowor = getRealPrice(br.ReadInt32) / 1000
dr(i).endor = getRealPrice(br.ReadInt32) / 1000
br.ReadInt32()
dr(i).changor = br.ReadInt32
dr(i).id = i
If (dr(i).hightor <> dr(i).lowor) Then dr(i).VbP = dr(i).changor / ((dr(i).hightor - dr(i).lowor) * 1000)
br.ReadInt32()
Next
End Select
fs.Dispose()
LoadDayData = j
End Function