走过海棠暮

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走过海棠暮 2024-08-24 10:34:16

不要尝试重新发明轮子,而是使用 NTFS 文件加密。您可以加密单个文件或整个文件夹或驱动器。另外,它对用户完全透明,并且完全按照您的要求执行(例如,复制到 UBS 驱动器时自动解密等)。只需使用 System.IO.File.Encrypt(string) - 没有比这更简单的了。

Instead of trying to reinvent the wheel, use NTFS file encryption. You can encrypt single files or entire folders or drives. Plus it's completely transparent to the user and does exactly what you asks (e.g. automatically decrypt when copying to a UBS drive, etc). Just use System.IO.File.Encrypt(string) - there couldn't be anything easier.

在 C# 中响应与文件的交互?

走过海棠暮 2024-08-24 04:13:23

2008 年,您可以进入工具 -->选项 -->键盘,在按快捷键字段中,您可以键入快捷键,它会告诉您当前映射到的内容。

2008 年,它映射到 View.ToggleDesigner。

一旦您知道它映射到什么,请将其输入到“显示命令包含”字段中,它将向下过滤您的列表。

我这台计算机上没有 2010,所以我无法验证您是否可以在该版本中执行相同的操作。

In 2008 you could go into Tools --> Options --> Keyboard and in the Press Shortcut keys field you could type a shortcut and it would tell you what its currently mapped to.

In 2008 its mapped to View.ToggleDesigner.

Once you know what its mapped to, type it into the Show Commands containing field, and it will filter your list down.

I don't have 2010 on this computer, so I cannot verify if you can do the same in that version.

更改“切换到标记”的快捷方式在 Visual Studio 2010 中

走过海棠暮 2024-08-24 03:41:45

这里有一个猜测:Outlook 可能会对附件执行某种压缩,或者可能使用比内置 MailMessage 类更有效的编码机制。

更新:看起来 Outlook 使用专有的编码机制: http://support.microsoft.com/kb/290809

Here's a guess: Outlook may perform some kind of compression on the attachment, or may use a more efficient encoding mechanism than the built-in MailMessage class does.

UPDATE: Looks like Outlook uses a proprietary encoding mechanism: http://support.microsoft.com/kb/290809

使用 SMTP 类发送电子邮件而不是 Outlook 时,电子邮件大小会奇怪地增加

走过海棠暮 2024-08-24 02:39:01

bb.show()中a的当前值为0,因此输出是正确的。仅在 A 类的 Show 方法中将其设置为 5。

Current value of a in bb.show() is 0, so the output is correct. You set it to 5 only in the Show method in the A class.

C# 中的派生类无法显示基类变量的值

走过海棠暮 2024-08-23 20:08:27

SVG 动画可能是解决这个问题的更好方法。您无需担心编写 CSS,与 GIF 相比,您将获得更好的分辨率和 Alpha 透明度。您可以使用一些非常好的 SVG 加载动画:http://samherbert.net/svg-loaders/< /a>

您还可以通过我构建的服务直接使用这些动画: https://svgbox.net/iconset/loaders 。它允许您自定义填充并允许直接使用(盗链)。

为了完成您想要使用 jQuery 执行的操作,您可能应该隐藏一个加载信息元素,并在想要显示加载器时使用 .show() 。例如,此代码在一秒钟后显示加载程序:

setTimeout(function() {
  $("#load").show();
}, 1000)
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.0/jquery.min.js"></script>

<div id="load" style="display:none">
    Please wait... 
    <img src="//s.svgbox.net/loaders.svg?fill=maroon&ic=tail-spin" 
         style="width:24px">
</div>

SVG animations are probably a better solution to this problem. You won't need to worry about writing CSS and compared to GIFs, you'll get better resolution and alpha transparency. Some very good SVG loading animations that you can use are here: http://samherbert.net/svg-loaders/

You can also use those animations directly through a service I built: https://svgbox.net/iconset/loaders. It allows you to customize the fill and direct usage (hotlinking) is permitted.

To accomplish what you want to do with jQuery, you probably should have a loading info element hidden and use .show() when you want to show the loader. For eg, this code shows the loader after one second:

setTimeout(function() {
  $("#load").show();
}, 1000)
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.0/jquery.min.js"></script>

<div id="load" style="display:none">
    Please wait... 
    <img src="//s.svgbox.net/loaders.svg?fill=maroon&ic=tail-spin" 
         style="width:24px">
</div>

如何创建“请稍候,正在加载...”使用 jQuery 制作动画?

走过海棠暮 2024-08-22 23:58:36

我可以看到区别只是增加了一个名为 PreInitComplete 的事件。对于 .NET3.0 (3.5),我们总共有 11 个事件,而对于 .NET 4.0,则有 12 个事件

I could see that the difference is just additional of one event called PreInitComplete. In case of .NET3.0 (3.5) we have total of 11 events and in case of .NET 4.0 it is 12 events

ASP.NET 页面生命周期的更改

走过海棠暮 2024-08-22 23:42:50

必须同时编译这两个文件,或者将第一次运行的.class文件添加到javac的类路径中。 javac 并不试图变得聪明,也不会在硬盘中搜索可能解决丢失符号的文件。如果你不传入一些东西,它就找不到它。

You must compile both files at the same time or add the .class file of the first run in the classpath of javac. javac doesn't try to be smart and doesn't search your harddisk for files which might resolve missing symbols. If you don't pass something in, it won't find it.

Java编译器行为问题

走过海棠暮 2024-08-22 21:06:13

我假设“SecondOrderEquation”是您的类“Equation”中的方法名称。
“SecondOrderEquation”的用法指的是 this.SecondOrderEquation ,它需要一个“Equation”类型的实例作为上下文。

要解决此问题,您可以尝试将“SecondOrderEquation”和“ThirdOrderEquation”设为静态方法。

I assume "SecondOrderEquation" is a method name in your class "Equation".
The usage of "SecondOrderEquation" refers to this.SecondOrderEquation which needs a instance of type "Equation" to be a context.

To fix it, you can try to make "SecondOrderEquation" and "ThirdOrderEquation" to be static methods.

典型的从另一个构造函数调用构造函数,但给了我一个错误

走过海棠暮 2024-08-22 18:53:51

查看 GetProperties 语法。有一个参数告诉它您是否只需要当前类的属性,或者按照您的要求,需要整个继承链的属性。您必须遍历类结构才能找到每个级别的属性。

check out the GetProperties syntax. There's a parameter to tell it whether or not you want attributes for the current class only or, as you're asking, for the entire inheritance chain. You will have to walk your class structure to find the attributes at each level.

控制反射属性值返回顺序的最佳方法是什么?

走过海棠暮 2024-08-22 17:48:50

添加到@Eric Lebigot 和他的精彩帖子。

以下方法实现了构建张量查找表的技巧:

a = np.array([[1, 0, 0], [1, 0, 0], [2, 3, 4]])
np.unique(a, axis=0)

输出:

array([[1, 0, 0], [2, 3, 4]])

np.unique 文档

Adding to @Eric Lebigot and his great post.

The following did the trick for building a tensor lookup table:

a = np.array([[1, 0, 0], [1, 0, 0], [2, 3, 4]])
np.unique(a, axis=0)

output:

array([[1, 0, 0], [2, 3, 4]])

np.unique documentation

从 Numpy 矩阵构建 Python 集

走过海棠暮 2024-08-22 15:32:00
/\"\:(?:(.+)\!(.+)\@)?([^ ]+) PRIVMSG([^ ]+) \:(.+)\"/

$nick = $3
$ident = $1
$host = $2
$chan = $4
$message = $5

我转义了所有字符只是因为它取决于正则表达式引擎。你应该根据你使用的内容来转义那些不是特殊字符的字符

/\"\:(?:(.+)\!(.+)\@)?([^ ]+) PRIVMSG([^ ]+) \:(.+)\"/

$nick = $3
$ident = $1
$host = $2
$chan = $4
$message = $5

i escaped all chars just because it depends on the regexp engine. you should unescape the ones that arent special chars depending on what you use

将字符串拆分为某些部分

走过海棠暮 2024-08-22 14:31:00

您可以添加更多元素来调整大小:

<div style="width:960px;overflow:hidden;">
  <div style="float:left;width:50%;">
    <div style="margin:5px;border:1px solid #000;padding:5px;"></div>
  </div>
  <div style="float:left;width:50%;">
    <div style="margin:5px;border:1px solid #000;padding:5px;"></div>
  </div>
</div>

您可以对没有边距、边框或填充的元素使用百分比,并且可以对内部具有自动宽度的元素使用边距、边框和填充。

You can add more elements for sizing:

<div style="width:960px;overflow:hidden;">
  <div style="float:left;width:50%;">
    <div style="margin:5px;border:1px solid #000;padding:5px;"></div>
  </div>
  <div style="float:left;width:50%;">
    <div style="margin:5px;border:1px solid #000;padding:5px;"></div>
  </div>
</div>

You can use percentages for element with no margin, border or padding, and you can use margin, border and padding on the elements inside that has auto width.

在 CSS 中计算 Pixel 和 % 的更好方法(或替代方法)?

走过海棠暮 2024-08-22 13:35:12

在我看来,您正在做您必须做的事情,而没有合并像 Ivy 或 Maven 这样的依赖管理工具,它们为您提供了“传递依赖管理”的功能。使用这些工具中的任何一个,您都可以指定 A 依赖于 B,B 依赖于 C,它们会自动知道 A 也将需要 C。

当需要打包项目进行部署时,Maven 的优势(这是我的经验)也会发挥作用,因为它可以轻松收集所有这些依赖项(一直沿着层次结构)并将它们放在一起到一个发行版中文件夹或包含所有依赖项的 fat JAR。使用像 Maven 这样的工具需要一些阅读和设置时间,但它确实使管理依赖项的任务变得更加容易,尤其是随着依赖项的增长。

It sounds to me like you're doing what you have to without incorporating a dependency management tool like Ivy or Maven, which provide you the capability of "transitive dependency management". With either of these tools you can just specify that A depends on B and B depends on C and they will automatically know that A is going to need C as well.

The advantages of Maven (this is what I have experience in) also comes into play when it's time to package your projects for deployment since it can easily gather all of those dependencies (all the way down the hierarchy) and place them together into a distribution folder or a fat JAR that contains all of your dependencies. It takes some reading and set-up time to get into a tool like Maven, but it does make the task of managing your dependencies a whole lot easier, especially as they grow.

解决 Java 项目之间依赖关系的最佳方法是什么?

走过海棠暮 2024-08-22 10:40:10

如果您使用的是 UINavigationController,我发现以编程方式创建它比在 IB 中创建它更容易(实际上,我根本不喜欢使用 IB,但那是另一篇文章的内容了:P)。

在您的 applicationDidFinishLaunching: 方法(或任何您想要添加 UINavigationController 的地方)中,只需使用它(假设 GhazalViewController 是您的 nib 和 UIViewController 子类的名称,并且 navigationController 是一个实例变量)

GhazalViewController *ghazal = [[GhazalViewController alloc] initWithNibName:@"GhazalViewController" bundle:nil];
navigationController = [[UINavigationController alloc] initWithRootViewController:ghazal];
[ghazal release];

If you're using a UINavigationController, I find it easy to create it programmatically than to do it in IB (actually, I don't like using IB at all, but that's for another post :P).

In your applicationDidFinishLaunching: method (or wherever else you want to add the UINavigationController), just use this (assuming GhazalViewController is the name of your nib and UIViewController subclass, and that navigationController is an instance variable)

GhazalViewController *ghazal = [[GhazalViewController alloc] initWithNibName:@"GhazalViewController" bundle:nil];
navigationController = [[UINavigationController alloc] initWithRootViewController:ghazal];
[ghazal release];

创建基于iPhone View Based应用程序项目的导航控制器

走过海棠暮 2024-08-22 10:14:59

尝试 inv.GetType().GetProperty("BillTo+Address");

Try inv.GetType().GetProperty("BillTo+Address");

在 C# 中使用反射获取嵌套对象的属性

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