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ipc - How do I run a Perl script from within a Perl script?

I've got a Perl script that needs to execute another Perl script. This second script can be executed directly on ... off invocation is the right fit for this.) Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - How to display only integer values on an axis using ggplot2

I have the following plot: library(reshape) library(ggplot2) library(gridExtra) require(ggplot2) data2<-structure(list ... method isn't really important to me. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Deserializing into a List without a container element in XML

In all the examples I've seen of using XmlSerializer any time a list or array happens you have some sort of ... to work as I'm currently not seeing it? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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linq - Why aren't C# static class extension methods supported?

I know from this question that extension methods can only operate on class instances, not the static class itself. ... ForEach<T> extension for IEnumerable<T>. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Specifying one type for all arguments passed to variadic function or variadic template function w/out using array, vector, structs, etc?

This question is about guaranteeing all arguments are of the same type while exhibiting a reject-early behavior with a ... to do it the first way if possible. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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caching - WPF TabControl - Preventing Unload on Tab Change?

Is there a way to prevent the Tab Unload/Reload when a tab changes in a WPF tab control? Or if that is ... and the delay when changing tabs is very noticeable. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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php - Fatal error: [] operator not supported for strings

I'm getting information from database, saving it in array and echoing it in a form with loop structure and I'm having ... give me a hint what I'm doing wrong? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql - Adding a leading zero to some values in column in MySQL

I have a CSV file sent to me in CSV. The field of interest is 8 digits. Some of those started with ... 12345678 1234567 I need to have this: 12345678 01234567 Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - What does malloc(0) return?

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asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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scikit learn - where to put freeze_support() in a Python script?

I am confused about using freeze_support() for multiprocessing and I get a Runtime Error without it. I am ... please head over to the more specific question. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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iphone - didFinishPickingMediaWithInfo return nil photo

I am working to capture an image that is returned in 4.0 using - (void)imagePickerController:(UIImagePickerController ... but never an image. Thanks in advance! Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# - Detecting *all* emojis

Right now I'm using this piece of code : public static bool ContainsEmoji(this string text) { Regex rgx = new ... way. Thank you very much for your time :) Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Determine if two files store the same content

How would you write a java function boolean sameContent(Path file1,Path file2)which determines if the two given ... too many times between the two streams. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Can the Android SDK work with JDK 1.7?

I just installed the Android SDK R16 and JDK 7, but I keep getting the error Android requires compiler compliance level 5. ... 1.6. How can I fix this problem? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Is `long` guaranteed to be at least 32 bits?

By my reading of the C++ Standard, I have always understood that the sizes of the integral fundamental types in C++ ... - 1) LONG_MAX +2147483647 // 2^31 - 1 Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - Does vector::erase() on a vector of object pointers destroy the object itself?

I have a vector of pointers to objects. I need to remove an element from the vector and place that element ... not erasing the object will destroy it as well. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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python - How to use a (random) *.otf or *.ttf font in matplotlib?

How can I use any type of font in my font library on my computer (e.g. *otf or *ttf) in all my matplotlib figures? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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php - How to get the real URL after file_get_contents if redirection happens?

I'm using file_get_contents() to grab content from a site, and amazingly it works even if the URL I pass as argument ... new URL, is there a way to do that? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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tsql - SQL Server : Transpose rows to columns

Apart from writing the cursor reading each rows and populating it into columns, any other alternative if I need to ... you can share with me some tips. Thanks. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Display the contents of a log file as it is updated

I have external programs such as ffmpeg and gstreamer running in the background and writing to a log file. I want ... and update the log file in an HTML page? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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typescript - Extending component decorator with base class decorator

I have several component decorator declarations that I repeat on every component, for example: @Component({ moduleId: ... t seem to apply to derivative classes. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to use Accelerometer to measure distance for Android Application Development

I am just a beginner in the application development industry. I know the accelerometer can be used to return the ... t come to a point. Thank You, Arslan Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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asp.net mvc - URLs with slash in parameter?

Question: I am creating a wiki software, basically a clone of wikipedia/mediawiki, but in ASP.NET MVC (the MVC is ... -want-in-your-urls-with-aspnet-4-and-iis) Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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language agnostic - what is natural ordering when we talk about sorting?

What is meant by natural ordering . Suppose I have an Employee object with name , age and date of joining , sorting by what is natural ordering ? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How do I use SharedPreferences in Xamarin.Android?

I want to save and retrieve some application settings in my Xamarin.Android project. I know that in ... C# equivalent of Android Java's SharedPreferences? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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macos - Enable OpenMP support in clang in Mac OS X (sierra & Mojave)

I am using Mac OS X Sierra, and I found that clang (LLVM version 8.1.0 (clang-802.0.38)) does ... gcc --without-multilib), and the compilation is successful.) Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Postgres data type cast

My database is Postgres 8. I need to cast data type to another. That means, one of columns data type is ... to do it? Sample code would be highly appreciated. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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android - Volley JsonObjectRequest Post parameters no longer work

I am trying to send POST parameters in a Volley JsonObjectRequest. Initially, it was working for me by following ... just stopped, and also a simple solution. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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