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performance - Why is MySQL InnoDB insert so slow?

I am using large random numbers as keys (coming in from another system). Inserts and updates on fairly-small ... "%duration test("MyISAM") test("InnoDB") Question&Answers:os...

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

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149 views

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c++ - What expressions yield a reference type when decltype is applied to them?

I was reading C++ Primer and couldn't quite understand when an expression yields an object type, and when it ... which yield the reference to the object type? Question&Answers:os...

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

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109 views

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How to get HTTP response code for a URL in Java?

Please tell me the steps or code to get the response code of a particular URL. Question&Answers:os...

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

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c# - Is there anything like asynchronous BlockingCollection<T>?

I would like to await on the result of BlockingCollection<T>.Take() asynchronously, so I do not block the ... ) gets blocked instead. Is there any alternative? Question&Answers:os...

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

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How to remove duplicates from Python list and keep order?

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

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Python unicode equal comparison failed

This question is linked to Searching for Unicode characters in Python I read unicode text file using python ... special way of unicode string comparison ? Question&Answers:os...

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

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javascript - Assign variable in if condition statement, good practice or not?

Closed. This question is opinion-based. It is not currently accepting answers. Question&Answers:os...

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

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How to determine the number of days in a month in SQL Server?

I need to determine the number of days in a month for a given date in SQL Server. Is there a built-in ... , what should I use as the user-defined function? Question&Answers:os...

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

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3 column layout HTML/CSS

I have the following HTML layout: <div class="container"> <div class="column-center">Column center</div> <div class="column-left"> ... ----------------------- Question&Answers:os...

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

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Use jQuery/CSS to find the tallest of all elements

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

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xHTML/CSS: How to make inner div get 100% width minus another div width

I have 2 nested divs inside outer one, which has width:100%. Both nested divs should be in one line and first ... table> Here is the image of what I want: Question&Answers:os...

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

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209 views

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c# - programmatically mouse click in another window

Is it possible to click programmatically a location in another window without moving the mouse to ... 0x202 are WM_LBUTTONDOWN and WM_LBUTTONUP respectively. Question&Answers:os...

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

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358 views

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jquery - How to add additional fields to form before submit?

Is there a way to use javascript and JQuery to add some additional fields to be sent from a HTTP form using POST? ... the POST data return true; }); </script> Question&Answers:os...

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

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463 views

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c# - getting type T from IEnumerable<T>

is there a way to retrieve type T from IEnumerable<T> through reflection? e.g. i have a variable ... i want to retrieve Child's type through reflection Question&Answers:os...

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

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css - How to align two elements on the same line without changing HTML

I have two elements on the same line floated left and floated right. <style type="text/css"> #element1 {float:left;} ... closer (but couldn't get it to work). Question&Answers:os...

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

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640 views

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php - Get first 100 characters from string, respecting full words

I have asked a similar question here before, but I need to know if this little tweak is possible. I want to shorten a ... " Is there a way to do this using PHP? Question&Answers:os...

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

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384 views

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performance - What is the fastest way to swap values in C?

I want to swap two integers, and I want to know which of these two implementations will be faster: The obvious ... faster and why? The why being more important. Question&Answers:os...

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

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154 views

1 answer

Java, List only subdirectories from a directory, not files

In Java, How do I list only subdirectories from a directory? I'd like to use the java.io.File functionality, what is the best method in Java for doing this? Question&Answers:os...

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

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79 views

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java - Using GSON to parse a JSON array

I have a JSON file like this: [ { "number": "3", "title": "hello_world", }, { "number": "2", "title": ... to know how to do it (if possible) with both methods. Question&Answers:os...

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

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301 views

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javascript - Form onSubmit determine which submit button was pressed

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

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821 views

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trim - How to remove new line characters from data rows in mysql?

I can loop through all of the rows in a php script and do UPDATE mytable SET title = "'.trim($row[' ... thought if you have tested something like this before) Question&Answers:os...

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

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162 views

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Overloaded functions in Python

Is it possible to have overloaded functions in Python? In C# I would do something like void myfunction (int ... it possible to do something similar in Python? Question&Answers:os...

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

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206 views

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objective c - iOS - Merging two images of different size

I'm facing the following problem : I have to merge two images A and B to create a new image C as a ... in it. Thanks in advance for any help or suggestion Question&Answers:os...

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

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928 views

1 answer

ide - Does Notepad++ show all hidden characters?

In Notepad++ I have set "replace tab with 2 spaces". When coding in Python I copy-pasted some code from the web ... as spaces? Is there a setting to fix this? Question&Answers:os...

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

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123 views

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python - Use a library locally instead of installing it

I've written a script in python that occasionally sends tweets to Twitter It only uses one library called ... : import tweepy with import local_folder/tweepy/* Question&Answers:os...

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

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446 views

1 answer

Flutter ListView lazy loading

How can I realize items lazy loading for endless listview? I want to load more items by network when user scroll to the end of listview. Question&Answers:os...

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

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163 views

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php - JavaScript: How do I create JSONP?

I have a two domains, example1.com and example2.com From example1.com, I would like call a JSON API I ... callback api? UPDATE My server side language is PHP Question&Answers:os...

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

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401 views

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metaprogramming - Calling a Method From a String With the Method's Name in Ruby

How can I do what they are talking about here, but in Ruby? How would you do the function on an ... puts methods and load and row_change where not listed. Question&Answers:os...

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

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