EvoTalk

1. 安裝「python-2.5.4」
2. 安裝「PyGtk, PyOpenGL, PyGtkGlExt, PyWin32 all in one installer」
使用 「Glade」拉界面 ，「Pythonwin」  IDE  debug，

Use Perl here documents to print multiple lines of output
example:
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PERL:

print <<FOO;

Perl offers a convenient way of printing multiple lines of output through an interesting feature known as a "Perl here document".

A multiline Perl here document works like this:

<ol>

    <li>The first line of your command will include the two characters <code>&lt;&lt;</code> followed by a [...]

xml data
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CODE:

&lt;?xml version="1.0" encoding="ISO-8859-1"?&gt;

&lt;catalog&gt;

  &lt;cd country="USA"&gt;

    &lt;title&gt;Empire Burlesque&lt;/title&gt;

    &lt;artist&gt;Bob Dylan&lt;/artist&gt;

    &lt;price&gt;10.90&lt;/price&gt;

  &lt;/cd&gt;

  &lt;cd country="UK"&gt;

    &lt;title&gt;Hide your heart&lt;/title&gt;

    &lt;artist&gt;Bonnie Tyler&lt;/artist&gt;

    &lt;price&gt;10.0&lt;/price&gt;

  &lt;/cd&gt;

  &lt;cd country="USA"&gt;

    &lt;title&gt;Greatest Hits&lt;/title&gt;

    &lt;artist&gt;Dolly Parton&lt;/artist&gt;

    &lt;price&gt;9.90&lt;/price&gt;

  &lt;/cd&gt;

&lt;/catalog&gt;

XPath expressions

/catalog
selects the root element

/catalog/cd
selects all the cd elements of the catalog element

/catalog/cd/price
selects all the price elements of all the cd elements of the catalog [...]

use stl set to simulate map
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CODE:

#include &lt;iostream&gt;

#include &lt;vector&gt;

#include &lt;algorithm&gt;

#include &lt;set&gt;

#include &lt;map&gt;

using namespace std;

class compare

{

public:

 //the error is over here

 bool operator()(pair&lt;int, int&gt; p1, pair &lt;int, int&gt; p2) const

 {

  if (p1.second == p2.second)

   return p1.first &lt;p2.first;

  else

     return p1.second &lt;p2.second;

 }

};

typedef set&lt;pair&lt;int, int&gt;, compare&gt; MMap;

void main(int argc, char* argv[])

{

 MMap D;

 D.insert(make_pair&lt;int, int&gt;(1, 10));

 D.insert(make_pair&lt;int, int&gt;(2, 2));

 D.insert(make_pair&lt;int, int&gt;(3, 2));

 D.insert(make_pair&lt;int, int&gt;(4, 3));

 D.insert(make_pair&lt;int, int&gt;(5, 6));

 MMap::const_iterator iter(D.begin());

 MMap::const_iterator [...]

Reference  3. All about redirection
redirect stdout to a file 
     ls -l > ls-l.txt
 
redirect stderr to a file 
     grep da * 2> grep-errors.txt
 
redirect stdout to a stderr
    grep da * 1>&2
 
redirect stderr to a stdout 
    grep * 2>&1
 
redirect stderr and stdout to a file 
    rm -f $(find / -name core) &> /dev/null