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filehandle/stream = a valid variable set with the OpenFile, WriteFile command, or OpenTCPStream (v1.52+). The value returned is a text string. string$ = valid string value. |
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Once you've opened a disk file (or stream) for writing, use this command to right a whole line of text to the file. Each line of text is automatically terminated with an "end-of-line" mark, consisting of a Carriage Return character followed by a LineFeed character. (i.e. 0Dh, 0Ah ) This function can be used to make plain text files. Streams can only be used in Blitz Basic v1.52 or greater. |
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; Reading and writing a file using ReadLine$ and WriteLine functions ; Initialise some variables for the example String1$ = "Line 1 is short" String2$ = "Line 2 is a longer line but they can be much longer" String3$ = "Line 3 is made up " String4$ = "of two parts joined together." ; Open a file to write to fileout = WriteFile("mydata.txt") ; Write the information to the file WriteLine( fileout, String1 ) WriteLine( fileout, String2 ) WriteLine( fileout, String3 + String4) WriteLine( fileout, "Just to show you don't have to use variables" ) ; Close the file CloseFile( fileout ) ; Open the file to Read filein = ReadFile("mydata.txt") Read1$ = ReadLine( filein ) Read2$ = ReadLine$( filein ) Read3$ = ReadLine$( filein ) Read4$ = ReadLine$( filein ) ; Close the file once reading is finished CloseFile( filein ) Print "Lines of text read from file - mydata.txt " Print Read1 Print Read2 Print Read3 Print Read4 WaitKey() |