arrays 相关问题

数组是一个有序数据结构,由一组元素(值或变量)组成,每个元素由一个或多个索引标识。在询问数组的特定变体时,请使用这些相关标签:[vector],[arraylist],[matrix]。在使用此标记时,在特定于编程语言的问题中 - 使用正在使用的编程语言标记问题。

2D阵列foreach表获得坐标JTSL,JavaScript

我得到了一个字符串[] [],这是我的播放桌(编码战舰)。我这样显示: <% String[][] field2 = master.getField(2); request.setAttribute("field", field2); %>...

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javascript二进制搜索/插入性能

函数二进制搜索(value) { var Startindex = 0, StopIndex = words.length -1, 中间= Math.floor(((StopIndex + StartIndex) / 2); while(单词[中间]!= value &&

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如何计算每个列表的总数,在列表python

提供所有列表的总数,而不是每个单独的列表总计。

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如何获取模型数据并将数据从控制器传递到视图?

Controller: [update] //only first page displays data correctly but pager +1 using pagination displays user data only not getting orders as first page when I print_r($orders) in all pages I get correct orders but in the table the inner foreach doesn't work public function index($page_id = 1) { $perPage = 25; $offset = ($page_id - 1) * $perPage; if ($offset < 0) { $offset = $perPage; } $lang_id = $this->data['active_language']->id; $config['base_url'] = base_url() . "reports/myController/index/"; $config['per_page'] = $perPage; $config['first_link'] = FALSE; $config['last_link'] = FALSE; $config['uri_segment'] = 4; $config['use_page_numbers'] = TRUE; $config['first_link'] = lang('first_page'); $config['last_link'] = lang('last_page'); $config['first_tag_open'] = '<li>'; $config['first_tag_close'] = '</li>'; $config['last_tag_open'] = '<li>'; $config['last_tag_close'] = '</li>'; $config['next_tag_open'] = '<li>'; $config['next_tag_close'] = '</li>'; $config['prev_tag_open'] = '<li>'; $config['prev_tag_close'] = '</li>'; $config['num_tag_open'] = '<li>'; $config['num_tag_close'] = '</li>'; $config['cur_tag_open'] = '<li><strong>'; $config['cur_tag_close'] = '</strong></li>'; $config['display_pages'] = TRUE; $orders_serials_ids = $this->myModel->get_orders_serials_ids(); $config['total_rows'] = $this->myModel->count_orders(); $this->pagination->initialize($config); $users = $this->myModel->users_merchants($perPage, $offset); $this->data['users'] = $users; $user_orders = array(); foreach ($users as $user){ $user_orders[$user->user_id] = $this->myModel->get_orders($user->user_id); } View: <table> <tr> <th> <?php echo 'user';?> </th> <th> <?php echo 'email';?> </th> <th> <?php echo 'device id';?> </th> </tr> <?php foreach($users as $val){ ?> <tr> <td> <?=$val->user_id?> </td> <td> <?php echo $val->email;?> </td> <td> <?php echo $val->device_id;?> </td> </tr> <?php $order = array(); //empty the variable before each loop foreach($orders[$user->user_id] as $order){ echo '<tr><td colspan="4">'. date('Y-m',$order->unix_time). ' -> '.round($order->amount2,2).'</td></tr>'; } } ?> </table> <ul class="pagination"><?php if($pagination) echo $pagination;?></ul> user id user name user email 1 Mike [email protected] order:10 order total:50 order date: 2016-09-12 order:12 order total:100 order date: 2016-09-14 2 Tom [email protected] order:15 order total:80 order date: 2016-09-13 order:16 order total:120 order date: 2016-09-14 order:17 order total:140 order date: 2016-10-10

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使用redai JavaScript的Pretty是新的,我已经在大约一个月的时间内尝试了大约4次这个问题,但我仍然无法解决它。 因此,这是一个问题: 构建功能交点t ...

这是一个问题: 构造一个函数交点,该功能交点比较输入阵列并将新数组与所有输入中的元素返回。奖励:使用减少!

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二进制搜索704 leetcode在python3

类解决方案: def搜索(self,nums:list [int],target:int) - > int: #建立左右极限 L = 0 #这将从右边拿走,然后推更多

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如何将数组中的元素显示为一个单词?

我正在创建一个随机密码生成器。其中一个数组包含所有元素,以创建密码,我不知道该如何以某种方式适用于所有密码长度。

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将阵列从substr_replace

我正在承担更繁琐的任务,即更改游戏的一堆ID并将其变成字符串。如您在这里所见,我对ID 29这样做,然后将其变成神枪手。我有一个更有效的方法吗?或者如果情况,我会再写大约100张吗?

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循环objoctarray时,calculate并声明对象的“总”属性

我有一个数组,让我们称其为$ order,看起来像这样 大批 ( [0] => stdclass对象( [模型] =>测试型号900 [数量] => 100 [Retail_Per_Unit] => 50.0000 ...

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集群查询结果由2列设置,并创建关联数组的关联数组

我有一个阵列区,其中包含36个地区,我正在该地区ID上聘请他们的总裁兼秘书。 $ districs = $ this-> dashboard-> get_districts(); foreach($ districts ...

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如何在循环中构建自定义的2D数组 我需要从我的数据库检索的记录中构建一个多维数组。 这是我拥有的代码:

<?php /* ...some code... */ foreach($data['colleges'] as $college) { $college_temp[] = $college->name; $college_temp[] = $college->abbrev; $college_temp[] = $college->long_name; $college_temp[] = $college->long_abbrev; $college_temp[] = $college->url; $college_temp[] = $college->description; } 数据库中的所有记录都在数组中的一个接一个。我需要使用多维数组来优化它。 $college_temp = array(); foreach($data['colleges'] as $college) { $college_temp[] = $college; } // Echo the first one's name echo $college_temp[0]['name']; // Echo the second one's url echo $college_temp[1]['url']; $college_temp = array(); $i = 0; foreach($data['colleges'] as $college) { $college_temp[$i]['name'] = $college->name; $college_temp[$i]['abbrev'] = $college->abbrev; $college_temp[$i]['long_name'] = $college->long_name; $college_temp[$i]['long_abbrev'] = $college->long_abbrev; $college_temp[$i]['url'] = $college->url; $college_temp[$i]['description'] = $college->description; $i++; } // var_dump($college_temp); // uncomment to check array contents

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