In UNIX, tar is the most useful tool to compress files (just like zip in Windows.)To compress, input: tar -cvzf file.tar.gz inputfile1 inputfile2to u....
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其他好文 时间：
2014-09-26 20:18:28
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236
PHP has large number of predefined constants. This HOWTO will present the seven most important, most practical and most useful PHP Magic Constants.__F...
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Web程序 时间：
2014-09-25 21:58:27
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200
Problem:Say you have an array for which theithelement is the price of a given stock on dayi.If you were only permitted to complete at most one transac...
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其他好文 时间：
2014-09-25 21:10:47
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171
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什么是异常:Python用异常对象(exception object)来表示异常情况.如果异常信息未被处理或捕捉。
程序就会用回潄来终止执行
>>> 1/0
Traceback (most recent call last): #Traceback: 一种错误信息
File "", line 1, in ?
ZeroDivisionError: integer division or modulo by zero
每个异常都是一些类的实例，这些实例可以被引发，并且可以用很...
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编程语言 时间：
2014-09-24 22:54:38
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350
-----QUESTION-----
Given n non-negative integers a1, a2,..., an,where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpoints of line i is at (i, ai)and (i,0). Find two lines, which together with x-axis forms ...
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其他好文 时间：
2014-09-24 20:39:27
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218
One of the most exciting features of PHP 5.3 is the first-class support foranonymous functions. You may have heard them referred to asclosuresor lambd...
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Web程序 时间：
2014-09-23 12:11:34
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283
第二十六题（不会）The following is a simple program which implements a minimal version of banner command available on most *nix systems. Find out the logic use...
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2014-09-23 09:02:44
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342
No matter how Microsoft is doing in comparison with Google, Microsoft Office is still the most used application in software world. Other alternatives ...
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编程语言 时间：
2014-09-22 20:04:23
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337
@staticmethod def instance(): """Returns a global `IOLoop` instance. Most applications have a single, global `IOLoop` running on ...
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其他好文 时间：
2014-09-22 14:36:42
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199
1. A simple Java Program2. Comments3. Data Types4. Variables5. Operators6. String7. Input and Output8. Control Flow9. Big Numbers10. Arrays1. A simple...
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编程语言 时间：
2014-09-21 14:43:00
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220
