Answer 1

对于根据C标准的初学者，没有参数的功能主体应

int main( void )

像所示程序中的函数

int (*x)[12], i;

一样贴发。因此，将指针删除

(*x)[i] = i;

导致不确定的行为。

取而代之的是，您可以写作，例如

#include <stdio.h>

int main( void )
{
    enum { N = 12 };
    int a[N];

    int (*x)[N] = &a;

    for ( size_t i = 0; i < N; i++ )
    {
        (*x)[i] = i;
        printf( "%d\n", (*x)[i] );
    }
}

一样写入该程序会更简单，

#include <stdio.h>

int main( void )
{
    enum { N = 12 };
    int a[N];

    int *x = a;

    for ( size_t i = 0; i < N; i++ )
    {
        x[i] = i;
        printf( "%d\n", x[i] );
    }
}

，如果该程序像在此声明中

int *x = a;

将其隐式转换为指向其类型 int *的第一个元素的指针。

在此声明中，

int (*x)[N] = &a;

初始化表达式＆amp; a 已经是类型 int（ *）[n] 的指针。

因此，在表达式中，

(*x)[i] = i;

子表达*x 产生数组 a 的lvalue。因此，实际上，上述表达式等同于

a[i] = i;

指针中都关注

int *x = a;

在声明和

int ( *x )[N] = &a;

x 存储数组 a 的记忆范围的起始地址，但不同类型。删除第一个指针，您将获得数组 a 的第一个元素。取消第二个指针，您将获得整个数组本身。

Answer 2

一个解决方案是将每个解决方案包装 span 和 input 中 div ，并给出每个 span display：block < /代码>

最好使用类而不是使用内联样式。

 <span>Name </span>
    <Input
      type="text"
      onChange={(e) => setName(e.target.value)}
      value={name}
    />
    <div style={{ flexDirection: "row", display: "flex" }}>
      <div>
      <span
       style={{ display: 'block' }}
      >
        Start Date
      </span>
      <Input
        style={{ flexDirection: "row", width: "45%", flexWrap: "wrap" }}
        type="text"
        onChange={(e) => setStartDate(e.target.value)}
        value={startDate}
      />
      </div>
      <div>
      <span style={{ display: 'block' }}>End Date</span>
      <Input
        style={{ flexDirection: "row", width: "45%", flexWrap: "wrap" }}
        type="text"
        onChange={(e) => setEndDate(e.target.value)}
        value={endDate}
      />
      </div>
    </div>

Answer 3

尝试一下，这称为辩论，以防万一您需要搜索更多有关它的信息

$(document).ready(function () {
    let oldTimeout = null;
    let timeToWaitBeforeSending = 1000 //ms
    $('#cards-search').on('input', function () {
        if (oldTimeout !== null) {
            clearTimeout(oldTimeout);
        }
        timout = setTimeout(() => {
            cards_page = '';
            cards_search = this.value;
            get_card_data();
        }, timeToWaitBeforeSending );
    });
});

Answer 4

注意：在这里盲目键入，因此代码中可能有一些错别字。

想法是，获取 dataTable 内的行数，然后进行槽，然后做您已经做过的事情。

int NumOfItems = Dt1.AsEnumarable().ToList();

for(int i = 0; i < NumOfItems.Count; i++)
{
   Dt1 = Dt1 .AsEnumerable().GroupBy(r => new { filename = r.Field<string>("filename1"), filesize = r.Field<string>("filesizeinkb") }).Select(g => g.First()).CopyToDataTable();
}

Answer 5

@Jason

您可以构建APK并手动提交Google吗？

Jasons的建议对我有用，仍然无法使用Visual Studio分发到Google Play，因此手动方法奏效了，根本不值得浪费更多时间试图弄清为什么Visual Studio不像以前那样做。

快速更新：

我恢复了Visual Studio 2022v。17.05

，现在我的iOS建筑/存档作品再次恢复，如果您使用Xamarin，它显然非常不建议您更新视觉工作室。

Answer 6

根据您的目标，有很多方法可以解决此问题。

但这是最简单的：

try {
    // ...
} catch(e: any) {
    if (typeof e === "object" && e !== null && e.data) {
        console.log(e.data);
    }
}

请注意，Typescript在 catch 子句中的类型规范方面有局限代码>数据属性或任何东西。

这是a 打字条游乐场。

Answer 7

渲染其他所有图标后，渲染“当前位置图标”。

如果是XML，请最后添加。

如果是在Java中，则只需声明并将其添加到最后一个布局。

如果您无法提供代码，则无法提供代码...

编辑：

确定我的想法，我将提供一些代码。

XML：

    <Layout...>
        <Other_Icon.../>
        <Other_Icon.../>
        <Other_Icon.../>
        <Your_Current_Position.../>
    </Layout...>

或

Java：

    Layout layout=new Layout(...);
    //A lot of other icons...
    layout.addView(icon1);
    layout.addView(icon2);
    layout.addView(icon3);
    //Your position icon...
    layout.addView(your_current_position_icon);

或者，如果您使用的是拖放。

只需最后放置图标即可。

（但是，如果您为确保确定编写编码，那就更好了。）

Answer 8

如果其他人正在尝试类似的需求。

chksum.java

import org.springframework.util.StringUtils;
import java.util.zip.CRC32;

public class ChkSum {
    public static long generate(byte[] content){
        CRC32 crc32 = new CRC32();
        crc32.update(content, 0, content.length);
        return crc32.getValue();
    }

    public static int match(String expected, String actual){
        long exp_hash = generate(StringUtils.trimAllWhitespace(expected).getBytes());
        long act_hash = generate(StringUtils.trimAllWhitespace(actual).getBytes());

        return Long.compare(exp_hash,act_hash);
    }
}

功能

  Scenario: Get demo.wsdl
    * def chksum = Java.type('ChkSum')
    Given path '/demo'
    And param wsdl = 'demoLookup.wsdl'
    When method get
    Then status 200
    # note how we focus only on the relevant part of the payload and read expected XML from a file
    #And print 'response: ', response
    * xmlstring exp = read('expected-demo.wsdl')
    * xmlstring act = response
    * def result = chksum.match(exp, act)
    # And match exp == act
    And match result == 0

Answer 9

这可能有用。

import pandas as pd

df_json=pd.read_json("input_file.json")
df_json.head()
df_json.to_csv("output_file.csv",index=False)

Answer 10

尝试此XPath以找到包含它的文本

（by.xpath，“ // strong [包含（text（），'chấtliệu'）]”）;
希望它能起作用！

Answer 11

不要使用位置：绝对; .dropdown-content 。那把它从流中消失了。当它不重叠时，也不需要 z index：1; 。

/* When the user clicks on the button, toggle between hiding and showing the dropdown content */
function myFunction() {
  document.getElementById("myDropdown").classList.toggle("show");
}

// Close the dropdown menu if the user clicks outside of it
window.onclick = function(event) {
  if (!event.target.matches('.dropbtn')) {
    var dropdowns = document.getElementsByClassName("dropdown-content");
    var i;
    for (i = 0; i < dropdowns.length; i++) {
      var openDropdown = dropdowns[i];
      if (openDropdown.classList.contains('show')) {
        openDropdown.classList.remove('show');
      }
    }
  }
}

.html .body {
  width: 100%;
  height: 100%;
}

body {
  background-color: blanchedalmond;
}

.griddy {
  display: grid;
  grid-template-columns: auto auto auto auto;
  grid-template-rows: 35px;
  background-color: pink;
}

[class^='ssof'] {
  display: grid;
  outline: 1px solid black;
  align-items: center;
  justify-content: center;
}

.topnav a:hover {
  background-color: #ddd;
  color: black;
}

.topnav {
  border: 2px solid;
  background-color: darkcyan;
}


/* .topnav a {
                float: left;
                display: block;
                color: #f2f2f2;
                text-align: center;
                padding: 14px 16px;
                text-decoration: none;
            } */


/* .body {
                background-image: "nico.png";
                display: grid;
                grid-template-rows: auto, 1fr, auto;
                grid-template-columns: 100%;
            } */

.banner {
  display: flex;
  grid-auto-columns: 80% 20%;
  justify-content: center;
  margin-right: auto;
}

.placeme {
  margin-left: auto;
  width: 20%;
  border: 2;
  height: 36px;
  padding: 0 10px;
  outline: 0;
}

.main {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr;
  /*100%*/
  grid-template-rows: auto 1fr auto;
  gap: 20px;
}

.maincontent {
  display: grid;
  /* outline: 3px solid black; */
  grid-template-columns: 2fr 8fr;
  gap: 10px;
  background-color: lightgray;
  outline: solid 8px lightgray;
  /*20% 80%*/
  /* grid-template-rows: auto auto auto auto; */
}


/* [class^='sidenavinline'] { */

.sidenavinline {
  display: inline-grid;
  grid-template-columns: 100%;
  grid-template-rows: 60px 60px 60px;
  /* outline: solid 3px black; */
  grid-auto-rows: 60px;
  gap: 10px;
}


/* .one {
                display: grid;
                outline: solid 2px blue;
    
            } */

[class^='one'] {
  display: grid;
  align-items: center;
  justify-content: center;
  /* outline: 3px dashed #f90; */
  background-color: white;
  font-size: 20px;
  color: #333;
  gap: 10px;
}

.mainmain {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  grid-template-rows: 150px;
  /* outline: solid blueviolet; */
  /* grid-auto-columns: 1fr; */
  grid-auto-rows: 150px;
  gap: 10px;
}

[class^='submain'] {
  /* display: grid; */
  /* outline: dashed 3px black; */
  background-color: white;
  /* grid-auto-rows: 32%; */
  /* position: absolute; */
}

.footy {
  border: 3px solid black;
  padding: 30px;
}


/* Dropdown Button */

.dropbtn {
  background-color: #3498DB;
  color: white;
  padding: 16px;
  font-size: 16px;
  border: none;
  cursor: pointer;
}


/* Dropdown button on hover & focus */

.dropbtn:hover,
.dropbtn:focus {
  background-color: #2980B9;
}


/* The container <div> - needed to position the dropdown content */

.dropdown {
  position: relative;
  display: inline-block;
}


/* Dropdown Content (Hidden by Default) */

.dropdown-content {
  display: none;
  /* position: absolute; */
  background-color: #f1f1f1;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
  /* z-index: 1; */
}


/* Links inside the dropdown */

.dropdown-content a {
  color: black;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
}


/* Change color of dropdown links on hover */

.dropdown-content a:hover {
  background-color: #ddd
}


/* Show the dropdown menu (use JS to add this class to the .dropdown-content container when the user clicks on the dropdown button) */

.show {
  display: block;
}

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">

</head>


<body>
  <div class="banner"><input type="text" placeholder="Search.." class="placeme"></div>
  <div class="griddy">
    <div class="ssof">home</div>
    <div class="ssof">search</div>
    <div class="ssof">bagicon</div>
    <div class="ssof">account</div>

  </div>

  <div class="topnav">
    <a href="#">Link</a>
    <a href="#">Link</a>
    <a href="#">Link</a>
  </div>

  <div class="main">
    <div class="sidenav"> p </div>


    <div class="maincontent">
      <div class="sidenavinline">
        <div class="one">
          <div class="dropdown">
            <button onclick="myFunction()" class="dropbtn">Dropdown</button>
            <div id="myDropdown" class="dropdown-content">
              <a href="#">Link 1</a>
              <a href="#">Link 2</a>
              <a href="#">Link 3</a>
            </div>
          </div>
        </div>
        <div class="one">b</div>
        <div class="one">c</div>
        <div class="one">b</div>
        <div class="one">e</div>


      </div>
      <div class="mainmain">
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items</div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>
        <div class="submain"> this is where we put items </div>

      </div>
    </div>


    <footer>
      <p class="footy">bottom content</p>
    </footer>

  </div>

</body>

Answer 12

问题在于，您没有在HTMX请求中包含该Alpine.js组件（ selectedOrderItem ）的一个状态数据。因此，当HTMX交换整个组件时，它将在此过程中丢失 selectordordem 的值。我们需要将此变量发送到后端，并将其包括在模板中。向HTMX请求添加其他数据的最简单方法是在其上使用 X-Model 的隐藏输入元素进行同步数据，然后使用 hx-include 将其添加到请求中。将其放置在组件中的任何位置：

<input type="hidden" name="selected_order_item" x-model="selectedOrderItem">

并修改按钮：

<button 
    class="addButton"
    hx-trigger="click" 
    hx-target="#cart-row" 
    hx-swap="outerHTML"
    hx-include="[name='selected_order_item']" 
    hx-post="{% url 'add_to_cart' idOrder=order.id idProduct=item.product.id  %}?cartAction=1"
>

在后端，我们可以在 request.post 中访问它，例如：

context={
         "order": order,
         "items": items,
         "selectedOrderItem": request.POST.get("selected_order_item", "null")
}

之后在 x-data 中访问了所选的。订单项目将出现。

x-data="{selectedOrderItem: {{selectedOrderItem}} }"

Answer 13

请考虑以下方法

with temp as (
  select *, 0 goal, 0 point from
  (select distinct saison from your_table),
  (select distinct stage from your_table),
  (select distinct team from your_table, unnest([team_home, team_away]) team)
)
select distinct saison, stage, team, 
  sum(goal) over prev_stages team_goals,
  sum(point) over prev_stages team_points
from (
  select * except(col) from your_table 
  unpivot ((team, goal, point) for col in 
    ((team_home, home_goal, home_point), (team_away, away_goal, away_point))
  )
  union all select * from temp
)
window prev_stages as (
  partition by saison, team order by stage 
  range between unbounded preceding and current row
)             

如果应用于问题中的示例数据 - 输出为

Answer 14

可以按插入顺序检索dict键，但仍然是一个集合，无论顺序如何，设置都应比较。实际上，所有设置比较操作都可以工作（并在适当的情况下返回Python SET ）。如果 d1 |，那将很奇怪D2 根据插入顺序进行不同的操作。平等是相同的。

Answer 15

目前尚不清楚您要如何汇总（总和一个更改值是很有意义的？）。还不清楚如果还有其他类型的更改，您想要什么。

但是您可以使用这样的有条件聚集

SELECT
  OilPrice = SUM(CASE WHEN PriceName = 'OilPrice' THEN PriceVal END), 
  OilPrice_CHANGE = SUM(CASE WHEN PriceName = 'OilPrice' THEN PriceVal_Change END),
  t.Portfolio,
  t.benchmark,
  t.EffectiveDate
FROM #temptable t
GROUP BY
  t.Portfolio,
  t.benchmark,
  t.EffectiveDate;