Code: Writing Text to a File (Visual Basic),CodeWri,odeWrit,deWriti,eWritin,Writing,WritingT,ritingTe,itingTex,tingText,ingTextt,ngTextto,gTexttoa,TexttoaF,exttoaFi,xttoaFil,ttoaFile,toaFileV,oaFileVi,aFileVis,FileVisu,ileVisua,leVisual,eVisualB,VisualBa,isualBas,sualBasi Code: Writing Text to a File (Visual Basic)----编程资料集中营--八角123--bajiao123.com
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Code: Writing Text to a File (Visual Basic),ThisexamplewritesastringtoatextfileusingtheWriteLinemethodoftheStreamWriterclass.ExampleDimfileAsNewSystem.IO.StreamWriter("c:\test.txt")file.WriteLine("Hereisthefir,
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Code: Writing Text to a File (Visual Basic)   进入问吧

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Code: Writing Text to a File (Visual Basic)

This example writes a string to a text file using the WriteLine method of the StreamWriter class.

Example

Dim file As New System.IO.StreamWriter("c:\test.txt")

file.WriteLine("Here is the first line.")

file.Close()
Compiling the Code
This example requires: 
  • A reference to System namespace. 
Robust Programming
The following conditions may cause an exception: 
  • The file exists and is read-only (IOException Class). 
  • The disk is full (IOException Class). 
  • The pathname is too long (PathTooLongException Class). 
Security
This example creates a new file, if the file does not already exist. If an application needs to create a file, that application needs Create access for the folder (see Access Control). If the file already exists, the application needs only Write access, a lesser privilege. Where possible, it is more secure to create the file during deployment, and only grant Read access to a single file, rather than Create access for a folder.








    
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