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我正在使用大数字（18 位），所以我将它存储到长变量中。我在计算中发现了一些不当行为，因此我制作了一个简单的测试程序。

计算不适用于大数字......更准确地说，它与我用于存储的地图相关联。有什么建议么？

    'Activity module
Sub Process_Globals
    'These global variables will be declared once when the application starts.
    'These variables can be accessed from all modules.

End Sub

Sub Globals
    'These global variables will be redeclared each time the activity is created.
    'These variables can only be accessed from this module.
    Dim b1,b2,b3 As Button
    Dim MapData As Map
End Sub

Sub Activity_Create(FirstTime As Boolean)
    b1.Initialize("Set100")
    b1.Text="Set100"
    Activity.AddView(b1,10%x,10%y,80%x,20%y)
    b2.Initialize("SetBig")
    b2.Text="SetBig"
    Activity.AddView(b2,10%x,40%y,80%x,20%y)
    b3.Initialize("Increase")
    b3.Text="long++"
    Activity.AddView(b3,10%x,70%y,80%x,20%y)
    MapData.Initialize
End Sub

Sub Activity_Resume

End Sub

Sub Activity_Pause (UserClosed As Boolean)

End Sub

Sub Set100_Click
    Dim l As Long
    l = 100
    Log("set to: " & l)
    MapData.Put("Token",l)
End Sub

Sub SetBig_Click
    ' long range: -9223372036854775808 to 9223372036854775807
    Dim l As Long
    l = 640345893847300380
    Log("set to: " & l)
    MapData.Put("Token",l)
End Sub

Sub Increase_Click
    Dim l As Long
    l = MapData.Get("Token")
    Log("from map: " & l)
    l = l + 1
    Log("new val : " & l)
    MapData.Put("Token",l)
End Sub
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1 回答 1

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你是对的。从未知对象到 Long 的转换存在错误，导致此错误。此错误将在下一次更新中修复。同时，您可以创建自定义类型并存储它。

Sub Globals
    'These global variables will be redeclared each time the activity is created.
    'These variables can only be accessed from this module.
    Dim b1,b2,b3 As Button
    Dim MapData As Map
    Type MyLong(l As Long)
End Sub

Sub Activity_Create(FirstTime As Boolean)
    b1.Initialize("Set100")
    b1.Text="Set100"
    Activity.AddView(b1,10%x,10%y,80%x,20%y)
    b2.Initialize("SetBig")
    b2.Text="SetBig"
    Activity.AddView(b2,10%x,40%y,80%x,20%y)
    b3.Initialize("Increase")
    b3.Text="long++"
    Activity.AddView(b3,10%x,70%y,80%x,20%y)
    MapData.Initialize
End Sub

Sub Activity_Resume

End Sub

Sub Activity_Pause (UserClosed As Boolean)

End Sub

Sub Set100_Click
    Dim l As Long
    l = 100
    Log("set to: " & l)
    MapData.Put("Token",l)

End Sub

Sub SetBig_Click
    ' long range: -9223372036854775808 to 9223372036854775807
    Dim l As MyLong
    l.l = 640345893847300380
    Log("set to: " & l)
    MapData.Put("Token",l)
End Sub

Sub Increase_Click
    Log(MapData.Get("Token"))
    Dim l As MyLong
    l = MapData.Get("Token")
    l.l = l.l + 1
    'If you want to create a copy of the original MyLong object:
    Dim l2 As MyLong
    l2.l = l.l
    Log("new val : " & l.l)
    MapData.Put("Token",l2)
End Sub
于 2011-11-01T15:08:06.187 回答