要了解：从PHP数组到Python？ [英] To understand: From PHP Array to Python?
问题描述
这是常见的任务在PHP和其他编程languages.I从PHP开发人员感动。
我想确保这个集合。
任何人都有谁在良好的python，请帮助我了解清楚。
这是从PHP code我的收藏品。
This is Common task In PHP and other programming languages.I moved from PHP developer. I want to make sure with this collections. Anyone have who good in python please help me to understand clearly . This is my collections from PHP code.
<?php
$php = array(1,2,3,4,5,6,7,8,9,10);
for ($i = 0; $i < 10 ; $i ++)
echo $php[$i]."<br>";
?>
=>什么是在Python？
=>What is in Python?
<?php
for ($i = 0; $i < 10 ; $i ++)
echo $php[$i] = $i +1 ;
?>
=>什么是在Python？
=>What is in Python?
<?php
$php = array(1,2,3,4,5,6,7,8,9,10);
foreach ($php as $value)
echo $value."<br>";
?>
=>什么是在Python？
=>What is in Python?
<?php
$arr = array(1, 2, 3, 4);
foreach ($arr as &$value) {
$value = $value * 2;
}
// $arr is now array(2, 4, 6, 8)
?>
=>什么是在Python？
=>What is in Python?
<?php
$arr = array("mot"=>"one", "hai"=>"two","ba"=> "three");
foreach ($arr as $key => $value) {
echo "Key: $key; Value: $value<br />\n";
}
?>
=>什么是在Python？
=>What is in Python?
<?php
$arr = array("one", "two","three");
while (list($key, $value) = each($arr)) {
echo "Key: $key; Value: $value<br />\n";
}
?>
=>什么是在Python？
=>What is in Python?
<?php
$arr = array("one", "two","three");
while ($element = each($arr)) {
echo "Key: $element['key']; Value: $element['value']<br />\n";
}
?>
=>什么是在Python？
=>What is in Python?
<?php
$products = array( array("ITL","INTEL","HARD"),
array("MIR", "MICROSOFT","SOFT"),
array("Py4C", "pythonkhmer.wordpress.com","TUTORIAL")
);
for ($row = 0; $row < 3; $row++)
{
for ($col = 0; $col <3; $col++)
{
echo "|".$products[$row][$col];
}
echo "<br>";
}
?>
=>什么是在Python？
=>What is in Python?
推荐答案
所有这些都是很明显的真。我只列出的 Python化的方法做这些事情。
All of these are quite obvious really. I'm only listing the Pythonic ways to do these things
PHP
$php = array(1,2,3,4,5,6,7,8,9,10);
for ($i = 0; $i < 10 ; $i ++)
echo $php[$i]."<br>";
的Python（一般你的迭代的比在Python列表，而不是通过索引访问）：
Python (generally you iterate over lists in Python, instead of accessing by index):
lst = [1,2,3,4,5,6,7,8,9,10]
for item in lst:
print str(item) + "<br>"
例2
for ($i = 0; $i < 10 ; $i ++)
echo $php[$i] = $i +1 ;
的Python：
Python:
lst = range(1, 11)
for item in lst:
print item
也许
lst = []
for i in xrange(10):
lst.append(i + 1)
print lst[-1] # prints out last element
例3
$php = array(1,2,3,4,5,6,7,8,9,10);
foreach ($php as $value)
echo $value."<br>";
同1
$arr = array(1, 2, 3, 4);
foreach ($arr as &$value) {
$value = $value * 2;
}
的Python：
Python:
lst = [1, 2, 3, 4]
lst = [val*2 for val in lst]
例5
$arr = array("mot"=>"one", "hai"=>"two","ba"=> "three");
foreach ($arr as $key => $value) {
echo "Key: $key; Value: $value<br />\n";
}
的Python（注意， {...} 创建一个字典 [字典]在Python，而不是一个列表/）：
Python (note that {...} creates a dict [dictionary] in Python, not a list/):
dct = {'mot': 'one', 'hai': 'two', 'ba': 'three'}
for key, value in dct.iteritems():
print "Key: %s; Value: %s<br />" % (key, value)
例6
$arr = array("one", "two","three");
while (list($key, $value) = each($arr)) {
echo "Key: $key; Value: $value<br />\n";
}
的Python：
Python:
lst = ['one', 'two', 'three']
for key, value in enumerate(lst):
print "Key: %d; Value: %s<br />" % (key, value)
例7
$arr = array("one", "two","three");
while ($element = each($arr)) {
echo "Key: $element['key']; Value: $element['value']<br />\n";
}
有没有类似这种直接的Python。
There is no direct Python equivalent to this.
$products = array( array("ITL","INTEL","HARD"),
array("MIR", "MICROSOFT","SOFT"),
array("Py4C", "pythonkhmer.wordpress.com","TUTORIAL")
);
for ($row = 0; $row < 3; $row++)
{
for ($col = 0; $col <3; $col++)
{
echo "|".$products[$row][$col];
}
echo "<br>";
}
的Python：
Python:
products = [['ITL', 'INTEL', 'HARD'],
['MIR', 'MICROSOFT', 'SOFT'],
['Py4C', 'pythonkhmer.wordpress.com', 'TUTORIAL']]
for product in products:
for item in product:
print '|' + item
print '<br>'
也许一个更Python版本：
Or maybe a more Pythonic version:
for product in products:
print '|%s<br>' % ('|'.join(product))
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