Special symbols
Some symbols have special definitions in Python compared with C/C ++ and Java.
_: Value of the last expression
Example:
>>> 4/2 2 >>>_ 2 Print _ + 10 12
%: String format Operator
Example:
>>> Print '% s is Number
ArticleDirectory
Install the MySQL Module
Connect to database
Focus on inserting and updating data
Install the MySQL Module
Sudo easy_install mysql-Python Connect to database
1 # ! /Usr/bin/ENV Python 2 # Coding =
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Author: sniperNature of the article: originalReleased on: 2004-02 2
From: www.4ngel.netE-mail: sniper@77169.comThis article has been published in the "black guest XFile" ######################################Preface As the core part of a
With JavaScript programming in depth, you will begin to understand the opaque error messages given by JavaScript. Once you understand the general mistakes you make, you will soon know how to avoid them, so you will have fewer errors in the code you
With the development of JavaScript programming, you will begin to understand the opaque error messages provided by JavaScript. Once you understand your common mistakes, you will soon know how to avoid them so that you can write
Code Fewer and fewer
I. Preface
Baidu encyclopedia explains the characters in this way-the characters refer to the letters, numbers, words, and symbols used in the computer, including: 1, 2, 3, A, B, C ,~! · # ¥ % ...... -* () -- + And so on.
I used a software
Original: http://levi.cg.am /? Cat= 246
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