停顿的约定

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停顿的约定 2025-02-13 07:54:51

在此行

}else{
    //If card number has a length different than 13, 15 or 16
    printf("INVALID\n");
}

考虑添加另一个块之前,要照顾不到13的块,它对我有用:就像

if (count < 13)
{
    printf("INVALID\n");
}

希望有帮助的那样

Before this line

}else{
    //If card number has a length different than 13, 15 or 16
    printf("INVALID\n");
}

Consider adding another else block, that takes care of less than 13, it works for me: like so

if (count < 13)
{
    printf("INVALID\n");
}

Hope that helps

CS50:信用。为什么是“ 4062901840”如果确实将其他10位数字评估为无效的,则不会被评估为无效?

停顿的约定 2025-02-13 03:01:45

像这样的代码:

PreparedStatement pstmt = con.prepareStatement(
    "SELECT * FROM analysis WHERE notes like ?");
pstmt.setString(1, notes + "%");`

确保您不包含引号',因为它们会导致例外。

pstmt.setString(1,"'%"+ notes + "%'");

Code it like this:

PreparedStatement pstmt = con.prepareStatement(
    "SELECT * FROM analysis WHERE notes like ?");
pstmt.setString(1, notes + "%");`

Make sure that you DO NOT include the quotes ' ' like below as they will cause an exception.

pstmt.setString(1,"'%"+ notes + "%'");

使用“喜欢”在准备声明中的通配符

停顿的约定 2025-02-12 20:08:44

由于存储的数据库文件之间的不匹配,您有一个字符串以及所告诉核心数据的内容,因此出现了错误,现在是INT。您指的是映射模型问题,但听起来似乎根本没有使用过映射模型,只是直接更改了模型定义,并期望框架应付。

如果这是一个早期阶段应用程序(即您仍在开发第一个版本),只需从设备或模拟器中删除该应用程序,然后重新运行模型和类定义文件。

如果您的应用程序在野外和用户设备上,并且您不在乎保留数据,则需要根据您定义的某些默认键在启动上包含一些代码来删除数据库文件。

如果要保留数据,则需要在核心数据模型编辑器中创建一个新模型版本,其中定义了您喜欢的类型,然后添加迁移或映射规则以定义转换期间应该发生什么 - 我认为没有任何自动缩小的映射规则将任何字符串变成整数。

The error comes because of a mismatch between the stored database file, where you have a string, and what you've told Core Data is in there, which is now an Int. You refer to a mapping model problem but it doesn't sound like you've used a mapping model at all, just changed the model definition directly and expected the framework to cope.

If this is an early stage app (i.e you're still developing the first version) just delete the app from the device or simulator and re-run once you've changed the model and class definition files.

If your app is out in the wild and on user devices, and you don't care about keeping the data, you'll need to include some code to delete the database file on startup according to some defaults key that you define.

If you want to keep the data, then you need to create a new model version in the core data model editor, where the type is defined how you like it, and then add migration or mapping rules to define what should happen during the conversion - I don't think there is any automatically inferrable mapping rule to turn any string into an integer.

更改Coredata中的属性给我NScocoaErrordomain代码= 134140

停顿的约定 2025-02-12 03:22:09

我的错误消息可能在不同的情况下,但是我只是找到自己的错误,并认为我无论如何都会为各种读者分享。我在数据集中使用了torchvision转换,该数据集正在加载数据集中。转换为

torchvision.transforms.randomhorizo​​ntalflip([0.5]),

错误是该转换的输入不应为列表,而应为

torchvision.transforms.randomhorizo​​ntalflips.randomhorizo​​ntalflip(0.5),

因此,如果我有任何建议,我可以推荐任何建议,只是可能有一些列表参数正在通过,不应该在某些转换中或其他方面进行。

I was having the same error message, probably under different circumstances, but I just found my own bug and figured I would share it anyway for various readers. I was using a torchvision transformation in my dataset, which the dataloader was loading from. The transformation was

torchvision.transforms.RandomHorizontalFlip([0.5]),

and the error is that the input to this transformation should not be a list but should be

torchvision.transforms.RandomHorizontalFlip(0.5),

So if there is anything I can recommend, it's just that maybe there is some list argument being passed through that shouldn't be in some transformation or otherwise.

遇到“ TypeError:&#x27;&lt;&#x27;在量子的实例之间不支持&#x27; &#x27; list&#x27;&quot;通过数据集进行

停顿的约定 2025-02-11 05:08:08

您需要使用DateTime对象,而不是格式的字符串。

SET $ startDate 像这样:

$StartDate = Get-Date  # a DateTime object, not a string

然后,在'bitis'列中计算 $ enddate 在“ bitis”列中:

$EndDate = [datetime]::ParseExact($ThisUser.bitis, 'dd.MM.yyyy', $null)

现在您可以使用dateTime对象$ startdate创建一个timespan和$ enddate。

顺便提一句。我会将数据收集到一个变量中,然后将其全部保存到CSV中,因此您不会执行这么多磁盘在文件上写入。

$result = foreach ($ThisUser in $cInCsv) {    
    $EndDate = [datetime]::ParseExact($ThisUser.bitis, 'dd.MM.yyyy', $null)
    $licence = (New-TimeSpan –Start $StartDate  –End $EndDate).Days

    if($licence -lt 90 -and $licence -gt 0) {
        # output the selected object to be collected in variable $result
        $ThisUser | Select-Object product,bitis, @{Name='gun'; Expression={$licence}}
    }
    elseif ($licence -lt 0){
        $pos = [Math]::Abs($licence) 
        Write-Host "$($ThisUser.product) lisansı $pos gün geçmiştir"
        $ThisUser | Select-Object product,bitis,@{Name='gun'; Expression={$pos}}
    }
}

# now write the result to csv file
$result | Export-Csv "C:\Users\akilic\Desktop\test.csv" -NoTypeInformation -Force

$ $ result 中的数据中创建HTML表


和/或从

$sInFile = "C:\Users\akilic\Desktop\tarihlerr.csv"
$cInCsv  = Import-Csv -Path $sInFile -Delimiter ";" -Encoding UTF7

You need to use datetime objects, not formatted strings.

Set $StartDate like this:

$StartDate = Get-Date  # a DateTime object, not a string

Then, inside the loop calculate the $EndDate from the 'bitis' column like this:

$EndDate = [datetime]::ParseExact($ThisUser.bitis, 'dd.MM.yyyy', $null)

Now you can create a TimeSpan using the DateTime objects $StartDate and $EndDate.

BTW. I would collect the data in a variable and afterwards save it all to CSV so you don't do so many disk writes appending to the file.

$result = foreach ($ThisUser in $cInCsv) {    
    $EndDate = [datetime]::ParseExact($ThisUser.bitis, 'dd.MM.yyyy', $null)
    $licence = (New-TimeSpan –Start $StartDate  –End $EndDate).Days

    if($licence -lt 90 -and $licence -gt 0) {
        # output the selected object to be collected in variable $result
        $ThisUser | Select-Object product,bitis, @{Name='gun'; Expression={$licence}}
    }
    elseif ($licence -lt 0){
        $pos = [Math]::Abs($licence) 
        Write-Host "$($ThisUser.product) lisansı $pos gün geçmiştir"
        $ThisUser | Select-Object product,bitis,@{Name='gun'; Expression={$pos}}
    }
}

# now write the result to csv file
$result | Export-Csv "C:\Users\akilic\Desktop\test.csv" -NoTypeInformation -Force

And/or create a HTML table from the data in $result


Oh yes, you need to swap these lines to read from the CSV file

$sInFile = "C:\Users\akilic\Desktop\tarihlerr.csv"
$cInCsv  = Import-Csv -Path $sInFile -Delimiter ";" -Encoding UTF7

如何在HTML表中添加列?

停顿的约定 2025-02-10 05:13:29

经验和力量仅适用于此。如何加入BBB
AAA想到了,我想到的解决方案过于复杂。我不喜欢。

bbb = df.groupby(['Name'])['Land_Area'].aggregate(['sum'])
aaa = df.groupby(['Village', 'Survey_no']).aggregate({'Land_Area': 'sum', 'Name': 'nunique'}).reset_index()
aaa = aaa.rename(columns={"Name": "No.of Farmers"})

输出BBB

           sum
Name          
Farmer_1  0.73
Farmer_2  1.20
Farmer_3  0.92
Farmer_4  0.23
Farmer_5  0.35

输出AAA

     Village  Survey_no  Land_Area  No.of Farmers
0  Village_1         26       2.85              3
1  Village_1        151       0.58              2

Experience and strength was enough only for this. How to join bbb to
aaa, overcomplicated solutions come to mind. Which I don't like.

bbb = df.groupby(['Name'])['Land_Area'].aggregate(['sum'])
aaa = df.groupby(['Village', 'Survey_no']).aggregate({'Land_Area': 'sum', 'Name': 'nunique'}).reset_index()
aaa = aaa.rename(columns={"Name": "No.of Farmers"})

Output bbb

           sum
Name          
Farmer_1  0.73
Farmer_2  1.20
Farmer_3  0.92
Farmer_4  0.23
Farmer_5  0.35

Output aaa

     Village  Survey_no  Land_Area  No.of Farmers
0  Village_1         26       2.85              3
1  Village_1        151       0.58              2

使用Python Pandas如何进行以下分析进行计算

停顿的约定 2025-02-10 03:42:28

您可以将边框颜色分开以在4个侧面的3个侧面透明,并使第4个是您的实际颜色,并创建一种伪弯曲效果

.here {
  position: relative;
  font-size: 80px;
}

.here::after {
  content: "";
  position: absolute;
  bottom: -15px;
  left: -7px;
  height: 10px;
  width: 100%;
  z-index: -1;
  border: solid 8px #9bffb0;
  border-color: #9bffb0a6 transparent transparent transparent;
  border-radius: 100%;
}
<h1>Hello this a <span class="here">text</span></h1>

You can section off the border color to be transparent on 3 of 4 sides and have the 4th be your actual color and create sort of a pseudo bend effect

.here {
  position: relative;
  font-size: 80px;
}

.here::after {
  content: "";
  position: absolute;
  bottom: -15px;
  left: -7px;
  height: 10px;
  width: 100%;
  z-index: -1;
  border: solid 8px #9bffb0;
  border-color: #9bffb0a6 transparent transparent transparent;
  border-radius: 100%;
}
<h1>Hello this a <span class="here">text</span></h1>

使下划线更弯曲

停顿的约定 2025-02-10 02:33:57

初始没有标签使该代码太坚不可摧。

解决该问题并将使用到过载中应该使情况更加清晰。但是,对于 $ 0 ,是累计值, $ 1 是要减少的序列的当前迭代。

extension Array where Element: Comparable {
  var countOfUniques: Int {
    sorted()
      .reduce(into: (previous: Element?.none, count: 0)) {
        if $0.previous != $1 {
          $0.count += 1
        }
        $0.previous = $1
      }
      .count
  }
}

如果您使用更可重复使用的情况编写,则可以无视 $ 1 ,但仅当您将 $ 0 name name 。

import Algorithms

[1,1,1,1,1,1,2,2,2,2,3,3,3,4].uniqued().count
public extension Sequence {
  /// - Complexity: O(n)
  var count: Int {
    reduce(0) { count, _ in count + 1 }
  }
}

initial not having labels makes that code too impenetrable.

Fixing that and using the into overload should make things more clear. But with either overload, $0 is the accumulating value, and $1 is the current iteration of the sequence being reduced.

extension Array where Element: Comparable {
  var countOfUniques: Int {
    sorted()
      .reduce(into: (previous: Element?.none, count: 0)) {
        if $0.previous != $1 {
          $0.count += 1
        }
        $0.previous = $1
      }
      .count
  }
}

If you write this with a more reusable case of reduce, you can disregard $1, but only if you name $0.

import Algorithms

[1,1,1,1,1,1,2,2,2,2,3,3,3,4].uniqued().count
public extension Sequence {
  /// - Complexity: O(n)
  var count: Int {
    reduce(0) { count, _ in count + 1 }
  }
}

在swift中,降低()函数在做什么

停顿的约定 2025-02-10 02:03:16

tructials.get(cameracharacteristics.control_available_effects)告诉您该摄像机支持哪些效果,而不是当前应用哪些效果。

您需要查看是否要应用的效果实际上在 control_available_effects 中列出。如果不是,则该设备不支持它。

characteristics.get(CameraCharacteristics.CONTROL_AVAILABLE_EFFECTS) tells you which effects are supported by that camera, not which effect is currently applied.

You'll need to look if the effect you want to apply is actually listed in CONTROL_AVAILABLE_EFFECTS. If it's not, then it's not supported by the device.

camera2效果既不适用于预览和照片

停顿的约定 2025-02-10 01:07:07

截至2018年9月,该论文可通过 Google Scholar 。但是,这是摘要,以防本文被删除:

为拓扑提出了两个算法之后的边界
分析数字化的二进制图像。第一个决定了
二进制图像边界之间的包围关系。自从
外部边界和孔边框具有与
L像素的连接组件和孔的连接组件分别
提出的算法得出二进制图像的表示
哪一个可以提取某种功能,而无需重构
图像。第二个算法是第一个的修改版本,
仅遵循最外面的边界(即,外部边界
不被孔包围)。这些算法可以有效地用于
组件计数,收缩和拓扑结构分析
二进制图像,当使用顺序数字计算机时。

As of Sep. 2018, the paper is available through Google Scholar. Nonetheless, here is the abstract in case the paper is taken down:

Two border following algorithms are proposed for the topological
analysis of digitized binary images. The first one determines the
surroundness relations among the borders of a binary image. Since the
outer borders and the hole borders have a one-to-one correspondence to
the connected components of l-pixels and to the holes, respectively,
the proposed algorithm yields a representation of a binary image, from
which one can extract some sort of features without reconstructing the
image. The second algorithm, which is a modified version of the first,
follows only the outermost borders (i.e., the outer borders which are
not surrounded by holes). These algorithms can be effectively used in
component counting, shrinking, and topological structural analysis of
binary images, when a sequential digital computer is used.

OPENCV用于查找轮廓的算法是什么?

停顿的约定 2025-02-09 12:17:56
#include <stdio.h>

int main(int argc, char **argv) {
    printf("program was supplied %d arguments.\n", argc - 1);
    for (int k = 0; k < argc; k++) printf("argv[%d] is %s\n", k, argv[k]);
    if (!strcmp(argv[1], "-e")) printf("The first argument provided is -e\n");
}

对于高级用法,您可能需要阅读有关 getopt

#include <stdio.h>

int main(int argc, char **argv) {
    printf("program was supplied %d arguments.\n", argc - 1);
    for (int k = 0; k < argc; k++) printf("argv[%d] is %s\n", k, argv[k]);
    if (!strcmp(argv[1], "-e")) printf("The first argument provided is -e\n");
}

For advanced usage you may want to read about getopt

如何将命令行参数添加到Ubuntu的终端特定用途?

停顿的约定 2025-02-09 12:09:55

在我之前的回答中,我说这是一次平局的“穷人的黑客”。我期望这种非随机结果在机器生成的循环中反复进行。修复程序:首先使用sys.sleep(。)操作的sys.sleep(。您可能会像您感兴趣的数字一样。

In my earlier answer I said it was “a poor-man's hack” for a single draw. I expected exactly this sort of non-random result if it were done repeatedly in a machine generated loop. The fix: First run this loop with a Sys.sleep(.) operation that "sleeps" for the number of second specified by the last pseudo random number and then if you ran sample on a set of such numbers you might achieve something like you were interested in.

列出随机数

停顿的约定 2025-02-08 15:13:43

尝试以下操作:

#install.packages("XLConnect")

library(XLConnect)

workbook <- loadWorkbook("data.xlsx", password = "my_passwoard")

df <- readWorksheet(workbook, "sheet1")

Try this:

#install.packages("XLConnect")

library(XLConnect)

workbook <- loadWorkbook("data.xlsx", password = "my_passwoard")

df <- readWorksheet(workbook, "sheet1")

在R中仅读取仅读取选项的Excel文件

停顿的约定 2025-02-06 15:33:26

我认为200更合适,因为端点存在。它只是没有持有任何数据。此外,应返回空列表,以便呼叫者可以过滤并检查自己,如果有值。这样,端点一直以相同的方式行为。

In my opinion 200 is more appropriate, as the endpoint is existing. It is just not holding any data. In addition, the empty list should be returned, so the caller can filter and check for himself, if there are values. This way the endpoint behaves the same way all the time.

如果数据不可用 - 我应该作为状态代码返回什么?

停顿的约定 2025-02-06 04:30:51

使用定向图,您的变量 ax = nx.draw_networkx_edges(...)是箭头的列表,不是映射对象。但是,使用无向图, ax linecollection ,它是可映射的。请参阅更多说明 arrows = false in nx.draw_networkx_edges ,以便 ax ax ax 变成a axe>代码> LineCollection ,然后将使创建配色栏成为可能。

With directed graphs, your variable ax=nx.draw_networkx_edges(...) is a list of arrows which isn't a mappable object. However, with undirected graph, ax is a LineCollection which is mappable. See more explanation here.
One thing you can do to make the colorbar work with directed graphs is simply add arrows=False in nx.draw_networkx_edges such that ax becomes a LineCollection, which will then in turn make creating the colorbar possible.

使用NetworkX绘制Digraph时的colormap错误

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