Exercise 16: Reading and Writing Files

If you did the Study Drills from the last exercise, you should have seen all sorts of commands (methods/functions) you can give to files. Here's the list of commands I want you to remember:

  • close -- Closes the file. Like File->Save.. in your editor.
  • read -- Reads the contents of the file. You can assign the result to a variable.
  • readline -- Reads just one line of a text file.
  • truncate -- Empties the file. Watch out if you care about the file.
  • write('stuff') -- Writes "stuff" to the file.
  • seek(0) -- Move the read/write location to the beginning of the file.

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