Computer Science 1026A/B Lecture Notes - Lecture 7: File Descriptor, Lineo, Empty String
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8 Nov 2016
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COMPSCI 1026A/B Full Course Notes
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When opening a le for reading, the le must exist (and otherwise be accessible) or an exception occurs. If writing the le must close it. Line = in le. readline() : read the just rst line. Read the whole le, can use while loop. \n : go to the next line. Suppose you are given a text le that contains a sequence of oating point value, stored one value per line. You need to read the value and write them to a new output le, aligned in a column and followed by their total and average value. If the input le has the contents. For line in inputfile: line = line. resplit() e. x. After opening the le you want to write to, there are two ways to trite to the le. Result = inputstring. rsplit ( , 1): means only split once.
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