发布于 2016-06-09 11:05:00 | 84 次阅读 | 评论: 0 | 来源: 网友投递
.NET Framework
.NET 是 Microsoft XML Web services 平台。你可以理解为.NET Framework ,XML Web services 允许应用程序通过 Internet 进行通讯和共享数据,而不管所采用的是哪种操作系统、设备或编程语言。Microsoft .NET 平台提供创建 XML Web services 并将这些服务集成在一起之所需。对个人用户的好处是无缝的、吸引人的体验。
Private Declare Function GetTickCount Lib "kernel32" () As Int32
Private Function TestByRef(ByRef aa As String) As String
aa = "1" & aa
TestByRef = aa
End Function
Private Function TestByVal(ByVal aa As String) As String
aa = "1" & aa
TestByVal = aa
End Function
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim teststr As String
Dim Newstr As String
Dim t As Int32
Dim II As Int32
teststr = "wosdfsdfdsfdsfsfdsfsfsfsfsfsfdsfdsfcvxcvxcvcxvvcxvvvxvcvxv"
t = GetTickCount
For II = 1 To 10000
Newstr = TestByRef(teststr)
Next
MsgBox("ByRef " & CStr(GetTickCount - t))
t = GetTickCount
For II = 1 To 10000
Newstr = TestByVal(teststr)
Next
MsgBox("ByVal " & CStr(GetTickCount - t))
End Sub