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. 4.10.3-1.
- Perevorot(), , s, temp s temp .
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. 4.10.3-1. 10.3-1
, wf True, , WriteLine() .
, DelProb() Mas(). Mas() Perevorot().
Join() line2, .
. 4.10.3-2.
| ' . ' . ' ' ' Option Strict On Option Explicit On Imports System.IO Public Class Form1 ' Function Perevorot(ByVal s As String) As String Dim temp As String = "" Dim L As Integer = s.Length For i As Integer = L - 1 To 0 Step -1 temp = temp + s.Substring(i, 1) Next Return temp End Function ' ' Sub DelProb(ByRef s As String) s = s.Trim Do While s.IndexOf(Space(2)) >= 0 s = s.Replace(Space(2), Space(1)) Loop End Sub Sub Resh(ByVal filename1 As String, _ ByVal filename2 As String,_ ByRef Lb1 As ListBox, ByRef Lb2 As ListBox) ' Dim Rf As New StreamReader(filename1) ' ' True 2- , ' Dim wf As New StreamWriter(filename2, True) Dim line1, line2, slovo As String Dim Mas() As String Try Do While Not Rf.EndOfStream() ' line1 = Rf.ReadLine() ' 1 line1 Lb1.Items.Add(line1) ' line1 ListBox DelProb(line1) ' line1 Mas = Split(line1, " ") ' line1 line2 = "" ' For i As Integer = 0 To Mas.Length - 1 slovo = Mas(i) ' - ' Mas(i) = Perevorot(slovo) Next ' line2, ' line2 = Join(Mas, " ") wf.WriteLine(line2) ' line2 2 Lb2.Items.Add(line2) ' line2 ListBox Loop Catch ex As Exception MsgBox(" ") Finally wf.Flush() ' Rf.Close() ' wf.Close() End Try End Sub Private Sub Button1_Click(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles Button1.Click Dim filename1 As String = "", filename2 As String = "" filename1 = TextBox1.Text filename2 = TextBox2.Text Resh(filename1, filename2, ListBox1, ListBox2) End Sub Private Sub Button2_Click(ByVal sender As System.Object, _ ByVal e As System.EventArgs) End End Sub End Class |
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. 4.10.3-2. 10
4.10.3-2. , , . :
- Perevorot() , ;
- Reshenie(), , My.Computer.FileSystem, - ;
vivodFile() , .2, ;
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. 4.10.3-3
- Perevorot(), , s, temp s temp .
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vivodFile(), filename, , S .
| Option Strict On Option Explicit On Public Class Form1 ' Function Perevorot(ByVal s As String) As String Dim temp As String = "" Dim L As Integer = s.Length For i As Integer = L - 1 To 0 Step -1 temp = temp + s.Substring(i, 1) Next Return temp End Function ' ' Sub DelProb(ByRef s As String) s = s.Trim Do While s.IndexOf(Space(2)) >= 0 s = s.Replace(Space(2), Space(1)) Loop End Sub ' 's1 s2 Sub Reshenie(ByVal filename As String, ByRef s1 As String, _ ByRef s2 As String) Dim line, OdnoSlovo As String Dim Stroki() As String ' Dim slova() As String ' . s2 = "" ' ' ' s1 Try s1 = My.Computer.FileSystem.ReadAllText(filename) Stroki = s1.Split(CChar(vbNewLine)) ' For i As Integer = 0 To Stroki.Length - 1 line = Stroki(i) ' DelProb(line) ' slova = line.Split(CChar(" ")) ' For j As Integer = 0 To slova.Length - 1 OdnoSlovo = Perevorot(slova(j)) s2 = s2 + OdnoSlovo + " " Next s2 = s2 + vbNewLine Next Catch ex As Exception MsgBox(" - " & _ " :" & vbNewLine & vbCrLf & _ ex.Message) End Try End Sub ' Sub vivodFile(ByVal filename As String, ByVal S As String) ' - S (False) Try My.Computer.FileSystem.WriteAllText(filename, S, False) Catch ex As Exception MsgBox(" () ") MsgBox(" -" _ & " :" & vbNewLine & ex.Message) End Try End Sub Private Sub Button1_Click(...) Dim filename1, filename2 As String Dim OldStr, NewStr As String filename1 = TextBox1.Text filename2 = TextBox2.Text Reshenie(filename1, OldStr, NewStr) vivodFile(filename2, NewStr) TextBox3.Text = OldStr TextBox4.Text = NewStr End Sub End Class |
. 4.10.3-3. 10
1.
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2) Dim t As New StreamWriter("f[le1.txt", False)
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9. ReadAllText()
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3)
10. WriteAllText()
1)
2)
3)
11.
1) StreamWriter.WriteAllText("Hello")
2) My.Computer.FileSystem.WriteAllText("file1.txt","Hello", False)
3) My.Computer.FileSystem.WriteAllText("file1.txt", "Hello", True)
4)
12. WriteAllText()
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15. ReadLine()
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18. filename.txt ,
| Sub readfile1(ByVal filename As String, ByRef p As String) Dim Rf As StreamReader Rf = New StreamReader(filename) Try p = Rf.ReadToEnd(): Rf.close() Catch ex As Exception MsgBox(" ") End Try End Sub |
1) filename.txt
2) ,
3) FileNotFoundException
4) IOException
19.
| Sub writefile1(ByVal filename As String, ByVal p As String) If File.Exists(filename)Then MsgBox(" " & filename & " ") Exit Sub End If Dim wf As New StreamWriter(filename) wf.WriteLine(p): wf.Close() ' End Sub |
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20. ,
| Sub writefile1(ByVal filename As String, ByVal p As String) If File.Exists(filename)Then MsgBox(" " & filename & " ") Exit Sub End If Dim wf As StreamWriter= File.CreateText(filename) wf.WriteLine(p): wf.Close() End Sub |
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