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python - Why allow concatenation of string literals?

I was recently bitten by a subtle bug. char ** int2str = { "zero", // 0 "one", // 1 " ... used string literal concatenation in production code? See Question&Answers more detail:os...

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json.net - Deserialization of self-referencing properties does not work

I have this object with a Parent property that reference another object of the same type: [JsonObject(IsReference ... ? Any help appreciated! See Question&Answers more detail:os...

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arrays - How do I paint multiple objetcs that move at different speeds in Java?

I am working on homework for class, and its late because I can't seem to understand the material despite all the ... repaint(); } } } } See Question&Answers more detail:os...

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

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javascript - Detect change in query param react-router-dom v4.x and re-render component

I am not really sure why its showing the default route once I did a query param change. Is there a ... ), document.getElementById('root')) See Question&Answers more detail:os...

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c# - json deserialize from legacy property names

How can I setup Newtonsoft.Json to deserialize an object using legacy member names but serialize it using the current ... the current name, "a" See Question&Answers more detail:os...

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assembly - How to read image file and display on screen in windows tasm dosbox

Im currently learning graphical programming in tasm using dosbox. Ive been using a bunch of loops to draw square blocks ... is a start. Pls help See Question&Answers more detail:os...

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c - Declaring an array of negative length

What happens in C when you create an array of negative length? For instance: int n = -35; int testArray[n ... it vary from compiler to compiler? See Question&Answers more detail:os...

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Delete Characters in Python Printed Line

I'm writing a program where I want the cursor to print letters on the same line, but then delete them as well, as ... : write(c) time.sleep(.5) See Question&Answers more detail:os...

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iphone - Purpose of @ Symbol Before Strings?

I've been using Objective-C for a while now, but have never really understood what the purpose of the @ symbol ... . Is there a good reason? See Question&Answers more detail:os...

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C-string definition in C / C++

What really means by word "C-string" in C / C++? Pointer to char? Array of characters? Or maybe const-pointer / const array of characters? See Question&Answers more detail:os...

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assembly - How to code a far absolute JMP/CALL instruction in MASM?

How can I write a far absolute JMP or CALL instruction using MASM? Specifically how do I get it to emit ... generate the right opcode (EA)? See Question&Answers more detail:os...

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angularjs - Adding google plus login to ionic app

I am trying to add google plus login to my ionic app. Following this link gives me an error. https://ionicthemes. ... styleDefault(); } }); }) See Question&Answers more detail:os...

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shell - How does AND and OR operators work in Bash?

I tried the following command on bash echo this || echo that && echo other This gives the output this other ... inputs would be very helpful! See Question&Answers more detail:os...

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php function variable scope

I was wondering if i have a function like this: function isAdmin ($user_id) { $admin_arr = array(1, 2); ... i do this? Regards, Alexander See Question&Answers more detail:os...

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In Fortran 90, do array dimensions have to be declared beforehand?

Is it necessary to declare array dimensions before any other code? For example, I have written the following simplified ... value of k is known? See Question&Answers more detail:os...

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ms access - how to show query results in a datasheet in the same form?

I have a Search form where you can input the criteria the user will be searching for. Then when I click the ... and the code for it? Thanks! See Question&Answers more detail:os...

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How to replace the buttons (attachment) only w/ Slack interactive buttons response

I've managed to create a simple interactive button Slack app using a Google Apps Script (GAS). I know how to ... in the gif above. Thanks! See Question&Answers more detail:os...

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jQuery .css("left") returns "auto" instead of actual value in Chrome

I have div element with left and top defined, without absolute position, and I want to read the left and top ... Any insights are welcome. :-) See Question&Answers more detail:os...

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Why can't attribute names be Python keywords?

There is a restriction on the syntax of attribute access, in Python (at least in the CPython 2.7.2 ... and whether this is documented. See Question&Answers more detail:os...

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c# - How to perform "nslookup host server"

My C# service needs to periodically poll nslookup host server. Currently it spawns a Process that executes batch ... heavy third-patry library? See Question&Answers more detail:os...

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Error inflating class android.support.v4.view.ViewPager

I've been trying to create a Pager for my application that runs on <uses-sdk android:minSdkVersion="10" android: ... on how to fix this? See Question&Answers more detail:os...

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How can I store a pattern in a variable in Rust?

I'm implementing a parser in Rust and whitespace is a common pattern that I want to reuse in match patterns. ... more idiomatic way to do this? See Question&Answers more detail:os...

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.net - How to insert a very large number of records into a MySql database as fast as possible

I have a database table like below: create table temperature (id int unsigned not null auto_increment primary key, ... minute in my computer.) See Question&Answers more detail:os...

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ios - uicollectionview remove top padding

I have a UICollectionView that is the entire view but it lives inside "view" (it is not UICollectionViewController) ... rid of that top padding? See Question&Answers more detail:os...

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html - canvas default size

Chrome seems to set canvas tags a default width of 300px. This is a bit of a nuisance when I want a ... . Is this possible without javascript? See Question&Answers more detail:os...

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How does python close files that have been gc'ed?

I had always assumed that a file would leak if it was opened without being closed, but I just verified that ... 't include a __del__ method. See Question&Answers more detail:os...

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python - NumPy array/matrix of mixed types

I'm trying to create a NumPy array/matrix (Nx3) with mixed data types (string, integer, integer). ... axis) TypeError: invalid type promotion See Question&Answers more detail:os...

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javascript - Is it possible to add html inside a title attribute?

Is there a way to put actual html code inside a title attribute on a table row element? My goal is to pop-up not only ... 31st' > ..... </tr> See Question&Answers more detail:os...

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

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