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imports System.IO
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读取指定文件
'
'读取指定文本文件
Public Function readtext(ByVal path As String)
If path = "" Then
readtext = "操作失败!"
Exit Function
End If
Try
If File.Exists(path) = True Then
Dim fs As New FileStream(path, FileMode.Open)
Dim sr As New StreamReader(fs)
Dim str As String
str = sr.ReadToEnd.ToString
sr.Close()
fs.Close()
readtext = str
Else
readtext = "操作失败!"
End If
Catch ex As Exception
readtext = "操作失败!"
End Try
End Function
'向指定文件写入数据
Public Function writetext(ByVal path As String, ByVal opi As Integer, ByVal msg As String)
If path = "" Then
writetext = "操作失败!"
Exit Function
End If
Dim op As FileMode
Select Case opi
Case 1
op = FileMode.Append
Case 2
op = FileMode.Create
Case Else
op = FileMode.Create
End Select
Try
If File.Exists(path) = True Then
Dim fs As New FileStream(path, op)
Dim sr As New StreamWriter(fs)
sr.WriteLine(msg)
sr.Close()
fs.Close()
writetext = "操作完成!"
Else
writetext = "操作失败!"
End If
Catch ex As Exception
writetext = "操作失败!"
End Try
End Function
先用ADO.NET读取数据,然后赋值即可,这个很容易的, 如果你要和某个控件的值做比对,就可以先赋值给控件,然后做比对。。。 例如,你读取数据库中的一条记录,然后绑定到textbox上,和另外一个textbox里面的数字比较大校。
先如下程序集
Imports System.Web.Script.Serialization
Function StringToObject(content As String) As Object
Dim jss As New JavaScriptSerializer()
Return jss.DeserializeObject(content)
End Function
Dim test1 As Dictionary(Of String, Object) = StringToObject("{
" Chr(34) "objects" Chr(34) ": {
" Chr(34) "minecraft/sounds/entity/rabbit/attack2.ogg" Chr(34) ": {
" Chr(34) "hash" Chr(34) ": " Chr(34) "4b90ff3a9b1486642bc0f15da0045d83a91df82e" Chr(34) ",
" Chr(34) "size" Chr(34) ": 7268
},
" Chr(34) "minecraft/sounds/entity/shulker/close5.ogg" Chr(34) ": {
" Chr(34) "hash" Chr(34) ": " Chr(34) "e555fcece121879fe0becbada9d01dea27ab153d" Chr(34) ",
" Chr(34) "size" Chr(34) ": 5376
},
" Chr(34) "minecraft/lang/ga_IE.lang" Chr(34) ": {
" Chr(34) "hash" Chr(34) ": " Chr(34) "a108f19142820b3573a658d40950ba3317b65c15" Chr(34) ",
" Chr(34) "size" Chr(34) ": 142847
},
" Chr(34) "minecraft/sounds/mob/horse/leather.ogg" Chr(34) ": {
" Chr(34) "hash" Chr(34) ": " Chr(34) "20abaa7d3b0baa105bc6023d5308f1e5d76acc41" Chr(34) ",
" Chr(34) "size" Chr(34) ": 11577
}}
}
")
Dim cc As Dictionary(Of String, Object) = DirectCast(test1.Values(0), Dictionary(Of String, Object))
Dim dd = cc.Values(0)("hash")
这样就可以遍历 hash值了
一、二进制文件读写
1、写二进制数据到指定目录
==将barray字节数组中的数据创建在strFilename目录文件下,存储格式为二进制,False表示不添加,直接覆盖创建。
2、从指定路径下读取二进制数据到数组
==将目录中的文件读取到barry字节数组中,即读取二进制文件。
二、字符文件的读写
1、 将txtFile控件中的字符写到srtFileName指定目录,以创建方式。
2、从srtFileName目录中的文件读取到txtFile控件
你只获取接口的每个 obj_name 和speed 值的话,你完全没必要当json来处里,你可以直接截取字符串就可以了。用substring函数