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How can I check if key exists in list of dicts in python?

Say I have a list of dicts that looks like this: [{1: "a"}, {2: "b"}] What is the pythonic way to indicate ... /14790980/how-can-i-check-if-key-exists-in-list-of-dicts-in-python...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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270 views

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Android Fragment and getWindow()

public class AircraftFragmentTab extends Fragment{ private String ac; public AircraftFragmentTab(String AC){ ac ... .com/questions/7600858/android-fragment-and-getwindow...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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355 views

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javascript - How to invert (transpose) the rows and columns of an HTML table?

I want to transpose the rows and columns in an HTML table, i.e. Rows as Columns, Columns as Rows. In what way ... /how-to-invert-transpose-the-rows-and-columns-of-an-html-table...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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146 views

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C function vs. Objective-C method?

What is the difference between the two? If I'm writing a program, when would I need a this: void ... ://stackoverflow.com/questions/4846825/c-function-vs-objective-c-method...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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368 views

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c# - Projecting into KeyValuePair via EF / Linq

I'm trying to load a list of KeyValuePairs from an EF / Linq query like this: return (from o in ... ://stackoverflow.com/questions/17301972/projecting-into-keyvaluepair-via-ef-linq...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - How do I show the keyboard by default in UITextView?

I want to create a view that consists solely of a UITextView. When the view is first shown, by default, I'd ... questions/259819/how-do-i-show-the-keyboard-by-default-in-uitextview...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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238 views

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Regex find word in the string

In general terms I want to find in the string some substring but only if it is contained there. I had ... ://stackoverflow.com/questions/9348326/regex-find-word-in-the-string...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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mysql - select the TOP N rows from a table

I am making some paging, and I need to make some query and get the result form defined slicing . for example: ... .com/questions/9150370/select-the-top-n-rows-from-a-table...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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How to copy selected files from Android with adb pull

I'm attempting to use the adb pull command to copy only certain files (jpg) to my macbook. I tried "adb ... questions/8650407/how-to-copy-selected-files-from-android-with-adb-pull...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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370 views

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android - How to pass Bundle from Fragment to Fragment

I am using fragments in my application. This is my first fragment that simply inflate a xml file: public class ... /questions/17063378/how-to-pass-bundle-from-fragment-to-fragment...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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536 views

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shutdown - Programmatically switching off Android phone

Can we switch off an Android phone programmatically? I am using following snippet but it didn't ... stackoverflow.com/questions/3745523/programmatically-switching-off-android-phone...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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157 views

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A Simple, 2d cross-platform graphics library for c or c++?

(Closed.) This question does not meet Stack Overflow guidelines. It is not currently accepting answers. question from: ... -simple-2d-cross-platform-graphics-library-for-c-or-c...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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R convert dataframe to JSON

I have a dataframe that I'd like to convert to json format: my data frame called res1: library(rjson) ... :https://stackoverflow.com/questions/25550711/r-convert-dataframe-to-json...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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392 views

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angular - How to declare a directive globally for all modules?

I'm developing a Github repo which follows the offical tutorial of Angular (Tour of Heroes). You can see ... questions/41505392/how-to-declare-a-directive-globally-for-all-modules...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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99 views

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sql server - SQL query to determine that values in a column are unique

How to write a query to just determine that the values in a column are unique? question from:https://stackoverflow. ... /sql-query-to-determine-that-values-in-a-column-are-unique...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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293 views

1 answer

c# - How to create 1024x1024 RGB bitmap image of white?

It's embarrassing to ask this question but can't find an answer. I tried this in vain. Image resultImage = ... /questions/12502365/how-to-create-1024x1024-rgb-bitmap-image-of-white...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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180 views

1 answer

Groovy time durations

Hi I'm trying to calculate the difference (duration) between two times in Groovy. e.g. start = " ... question from:https://stackoverflow.com/questions/3909855/groovy-time-durations...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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94 views

1 answer

c# - Detecting if class property is a reference type

Is it possible when looking at a class' properties to detect if any of them is a reference type. Take ... com/questions/4628395/detecting-if-class-property-is-a-reference-type...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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131 views

1 answer

c# - Reportviewer tool missing in visual studio 2017 RC

I just started to write reporting software in new version of visual studio named visual studio 2017 RC but ... questions/40713705/reportviewer-tool-missing-in-visual-studio-2017-rc...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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171 views

1 answer

Set CORS header in Tomcat

I had a static website hosted by Tomcat. How to set a header for my site like:Access-Control-Allow-Origin ... https://stackoverflow.com/questions/16296145/set-cors-header-in-tomcat...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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292 views

1 answer

jsf - Set a default time zone for f:convertDateTime

I use JSF1.2 and I have a little problem with time zones. Calendar respects my timezone and save the ... .com/questions/7490954/set-a-default-time-zone-for-fconvertdatetime...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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330 views

1 answer

Android Camera Intent Saving Image Landscape When Taken Portrait

(This question already has answers here): question from:https://stackoverflow.com/questions/12933085/android-camera-intent-saving-image-landscape-when-taken-portrait...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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433 views

1 answer

android - Bitmap is returning null from BitmapFactory.decodeFile(filename)

When I am calling this function there is no image in image view bitmapFactory.decodefile(filename) ... /8442316/bitmap-is-returning-null-from-bitmapfactory-decodefilefilename...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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260 views

1 answer

Angular: Bind to an @Input alias

I'm trying to set an input alias in a directive following this example @Input('appAvatarColor') name: string ... stackoverflow.com/questions/44033676/angular-bind-to-an-input-alias...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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674 views

1 answer

json - PostgreSQL rename attribute in jsonb field

In postgresql 9.5, is there a way to rename an attribute in a jsonb field? For example: { "nme ... //stackoverflow.com/questions/42308764/postgresql-rename-attribute-in-jsonb-field...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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154 views

1 answer

python - How to get all combination of n binary value?

(This question already has answers here): question from:https://stackoverflow.com/questions/14931769/how-to-get-all-combination-of-n-binary-value...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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266 views

1 answer

mysql - How to use PDO to fetch results array in PHP?

I'm just editing my search script after reading up on SQL injection attacks. I'm trying to get the same functionality ... /10911757/how-to-use-pdo-to-fetch-results-array-in-php...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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906 views

1 answer

python - Plot an histogram with y-axis as percentage (using FuncFormatter?)

I have a list of data in which the numbers are between 1000 and 20 000. data = [1000, 1000, 5000 ... /51473993/plot-an-histogram-with-y-axis-as-percentage-using-funcformatter...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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