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sql study conclusion
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- 语言问题
select as 之后，列名还是原来的。
index
view
join
SQL 教程
SQL SELECT DISTINCT
比如有两种国家，三个条目，那么返回的就是两个国家（if you “select distinct country from table_name"）
SQL WHERE
select * from customers where customername='jess’;//what I wrote in database was ‘Jess'
SQL AND & OR
SELECT * FROM Custom ...
About thoughts
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- 其他内容
=Scenario One=
when you're at a mall
open chaps and gps
all the chapps will pop out about this mall
once you circle down the sub categories,like computer accessories
you will get more specific results.
#nicht ist wundervolles dieses#
#people love bitching!#
// I wanna do some projects ...
python scrawler
- 博客分类：
- 基础知识
__author__ = 'YJatt'
import urllib2
url="http://www.cnblogs.com/way_testlife/archive/2010/06/14/1758276.html"
html=urllib2.urlopen(url,timeout=100).read()
print html
actually,it's pretty easy to scraw if there's no blocks.
the most important thing is how to analyze the da ...
python input&raw_input
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- 语言问题
__author__ = 'YJatt'
# if both n1 and n2's inputs are 1+2,no quotation marks attached
n1 = input("this is a expression : ")
n2 = raw_input("this is always a string : ")
print n1
#print 3
print n2
#print 1+2
languages ain't interesting,it's just a tool.and ESSENT ...
html5 TankBattle
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- 语言问题
<canvas id="tankMap" width="400px" height="300px" style="background-color:black"></canvas>
//得到画布
var canvas1=document.getElementById("tankMap");
//得到绘图上下文(你可以理解是画笔)
var cxt=canvas1.getContext("2d");
//my tank and bul ...
Install Django
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- 语言问题
Using ubuntu [basic]
install python (come with os)
install Intellij Idea (gotta install jdk first)
install Django(install pip or easy_install first)