烟外晓寒2011的笔记

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《Python.Django视频讲座》

来自Python.Django视频讲座二 (0)

significant whitespacewhitespace is meaningful in python:especially indentation an placement of newlines.

来自Python.Django视频讲座三 (0)

variablesno need to declareneed to assigneverything is a variableno array

来自Python.Django视频讲座五 (0)

Modulescollection of stuff-functions, classes, variablesPackagescollection of modules in directory Eclipse

来自Python.Django视频讲座六 (0)

Integers are implemented as C longs.Float implemented as C doubles

Stringsrepeated with the * sign‘abc’*3abcabcabcs[i:j]fetches elements i(inclusive)through j(not inclusive)s[i:j:k]extracts every kth element starting with index i and ending with index j.Tuplesa immutable list()

来自Python.Django视频讲座八 (0)

Arraysare not a built-in python type.included in Numeric, NumPyfrom numpy import *vec = array([1,2,3])mat = array([[1,2,3],[4,5,6],[7,8,9]])Lists & ArraysThe biggest difference arrays and lists is speed:it's much faster to carry out operatons on arrays than on each term in a given list.

来自Python.Django视频讲座十一 (0)

MTC-Model Template ViewTemplate displays information View fetches information

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