我想用 C# 设置下一个代码
'price_changes' => array(
'color' => array(
'Red' => '2',
'Blue' => '-10%',
),
'size' => array(
'Large' => '+1',
'Medium' => '-3',
),
),
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我如何在 C# (Winforms) 中执行此操作
或者像这样:
'price_changes' => array(
'size' => array(
'Large' => '+1',
'Medium' => '-3',
),
),
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非常感谢您的帮助。
我是 PHP 编程的初学者。我想知道如何在 PHP 中定义单维和多维数组。
我有以下数组:
$t[0] = array('one'=>array('a'=>2,'b'=>3,'c'=>2,'e'=>4));
$t[1] = array('two'=>array('a'=>2,'b'=>3,'c'=>2,'e'=>4));
$t[2] = array('one'=>array('a'=>2,'b'=>3,'c'=>2,'e'=>4));
$t[3] = array('three'=>array('a'=>2,'b'=>3,'c'=>2,'e'=>4));
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我想从上面的数组中删除重复的数组,结果应该是:
$t[0] = array('one'=>array('a'=>2,'b'=>3,'c'=>2,'e'=>4));
$t[1] = array('two'=>array('a'=>2,'b'=>3,'c'=>2,'e'=>4));
$t[2] = array('three'=>array('a'=>2,'b'=>3,'c'=>2,'e'=>4));
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谢谢
我有一个字符串,更具体地说,这个:
a:16:{s:9:"pseudonym";O:16:"SimpleXMLElement":0:{}s:14:"parallel_title";O:16:"SimpleXMLElement":0:{}s:9:"title_var";O:16:"SimpleXMLElement":0:{}s:6:"series";O:16:"SimpleXMLElement":0:{}s:9:"vol_title";O:16:"SimpleXMLElement":0:{}s:9:"reference";O:16:"SimpleXMLElement":0:{}s:10:"bound_with";O:16:"SimpleXMLElement":0:{}s:15:"general_remarks";O:16:"SimpleXMLElement":0:{}s:6:"copies";O:16:"SimpleXMLElement":1:{i:0;s:1:"1";}s:11:"remarks_BPH";O:16:"SimpleXMLElement":0:{}s:3:"ICN";O:16:"SimpleXMLElement":1:{i:0;s:4:"neen";}s:10:"provenance";O:16:"SimpleXMLElement":0:{}s:7:"binding";O:16:"SimpleXMLElement":0:{}s:10:"size_hxwxd";O:16:"SimpleXMLElement":0:{}s:6:"BookID";O:16:"SimpleXMLElement":1:{i:0;s:4:"6271";}s:5:"repro";O:16:"SimpleXMLElement":0:{}}
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有可能以某种方式解析这个字符串吗?我需要在列表中显示键和值.我尝试使用json_decode但它没有返回任何东西,即使第二个参数设置为true:
json_decode($string,true);
Run Code Online (Sandbox Code Playgroud) 假设我们有一个具有这种形状的数组:[2, 5].可能的指数组合是:
[
[0, 0],
[0, 1],
[0, 2],
[0, 3],
[0, 4],
[1, 0],
[1, 1],
[1, 2],
[1, 3],
[1, 4]
]
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如果数组有n维度,有没有一种简单的方法在Ruby中生成索引?
int Site[][] = new int[N][N];
for(int[] i : Site)
for(int j:i)
Site[i][j]=1;
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此代码显示一些错误.请更正代码.
我的代码中有这个数组
Array
(
[1] => Array
(
[1] => 4
[5] => 7
)
[2] => Array
(
[1] => 2
[5] => 5
)
[3] => Array
(
[1] => 2
[5] => 5
)
[4] => Array
(
[1] => 6
[5] => 9
)
[5] => Array
(
[1] => 6
[5] => 8
)
)
1
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如何获得具有相同索引的元素的总和?例如 - 具有索引5或索引的所有元素的总和1。是否可以不对列/键值进行硬编码?
我想转换这个多维数组:
array(
[0] => array (
"interest_income-bank" => "520.541"
"total_interest_expense" => "145.791"
"net_interest_income" => "434.937"
"loan_loss_provision" => "135.664"
.
.
)
[1] => array (
"interest_income-bank" => "617.894"
"total_interest_expense" => "205.508"
"net_interest_income" => "506.510"
"loan_loss_provision" => "120.586"
.
.
)
)
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到这样的数组:
array(
[interest_income-bank] => array (
"0" => "520.541"
"1" => "617.894"
.
.
)
[total_interest_expense] => array (
"1" => "145.791"
"2" => "205.508"
.
.
)
)
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尝试了很多但没有运气:(
任何帮助将非常感激!
我正在解决这个小问题,我确信可以(并且应该)递归地解决它。
# split list in sublists based on length of first element.
list = [3, 1, 2, 3, 4, 1, 2, 3, 4]
#* #*
# *number of elements of the sublist
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显示比解释要好,上面的结果应该是:
[[1, 2, 3], [1, 2, 3, 4]]
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我正在处理的列表始终遵循此逻辑,第一个元素始终是以下 n 个元素的长度。
编辑:
根据一些建议,我只是添加了一个 yield 来懒惰地完成它。
def split(ls):
"""
func that given a list extracts sub lists with the length indicated by the first element
[2, 1, 2, 3, 1, 2, 3, 4, 1, 2, 3, 4] => [[1, …Run Code Online (Sandbox Code Playgroud) var input = [
["0001", "Roman", "USA", "21/05/1989", "read"],
["0002", "jack", "UK", "10/10/1992", "singing"],
["0003", "harry", "Poland", "25/12/1965", "cook"],
["0004", "Malay", "Martapura", "6/4/1970", "Sport"]
]
function Handling() {
// ...
}
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有人可以帮我解决这个数组问题吗?
结果应该是这样的:
Run Code Online (Sandbox Code Playgroud)ID: 0001 Name: Roman Born Place: USA 21/05/1989 Hobby: read