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I've got a messages table in MySQL which records messages between users. Apart from the typical ids and ... specific to this type of common message storing. Question&Answers:os...

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

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200 views

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Correct way to try/except using Python requests module?

try: r = requests.get(url, params={'s': thing}) except requests.ConnectionError, e: print e #should I also ... to structure this? Will this cover all my bases? Question&Answers:os...

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

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152 views

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How can I delete using INNER JOIN with SQL Server?

I want to delete using INNER JOIN in SQL Server 2008. But I get this error: Msg 156, Level 15, State 1, Line 15 ... WHERE Company = '1' AND Date = '2013-05-06' Question&Answers:os...

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

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xcode - Making macOS Installer Packages which are Developer ID ready

Note: This is for OS X Installer packages only, packages for submission to the Mac App Store follow different ... , productbuild, and pkgutil to replace it? Question&Answers:os...

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

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Split long commands in multiple lines through Windows batch file

How can I split long commands over multiple lines in a batch file? Question&Answers:os...

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

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What is http multipart request?

I have been writing iPhone applications for some time now, sending data to server, receiving data (via HTTP protocol) ... it better way to send photos that way? Question&Answers:os...

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

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python - Extracting just Month and Year separately from Pandas Datetime column

I have a Dataframe, df, with the following column: df['ArrivalDate'] = ... 936 2012-12-31 938 2012- ... a method for reconfiguring the entire column. Any ideas? Question&Answers:os...

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

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Auto increment primary key in SQL Server Management Studio 2012

How do I auto increment the primary key in a SQL Server database table, I've had a look through the forum but can't ... way to do this but I can't find it. Question&Answers:os...

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

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Repeat a string in JavaScript a number of times

In Perl I can repeat a character multiple times using the syntax: $a = "a" x 10; // results in " ... any built in approach, or some other clever technique. Question&Answers:os...

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

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c# - What 'additional configuration' is necessary to reference a .NET 2.0 mixed mode assembly in a .NET 4.0 project?

I have a project in which I'd like to use some of the .NET 4.0 features but a core ... configuration information. What "additional configuration" is necessary? Question&Answers:os...

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

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java - Can enums be subclassed to add new elements?

I want to take an existing enum and add more elements to it as follows: enum A {a,b,c} enum B extends A {d} /*B is {a,b,c,d}*/ Is this possible in Java? Question&Answers:os...

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

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python - How to sort a list of lists by a specific index of the inner list?

I have a list of lists. For example, [ [0,1,'f'], [4,2,'t'], [9,4,'afsd'] ] If I wanted to ... string field of the inner lists, how would you do that in python? Question&Answers:os...

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

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swift - Get top most UIViewController

I can't seem to get the top most UIViewController without access to a UINavigationController. Here is what I have ... like this. It breaks the MVC pattern. Question&Answers:os...

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

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Android Gradle plugin 0.7.0: "duplicate files during packaging of APK"

Using Android Gradle plugin 0.7.0 with the following build.gradle: buildscript { repositories { mavenCentral() } ... Recompile with -Xlint:deprecation for details. Note: /U...

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

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How to rename a file using Python

I want to change a.txt to b.kml. Question&Answers:os...

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

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Angular - Use pipes in services and components

In AngularJS, I am able to use filters (pipes) inside of services and controllers using syntax similar to ... in services/components like this in Angular? Question&Answers:os...

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

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76 views

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javascript - How to delete an item from state array?

The story is, I should be able to put Bob, Sally and Jack into a box. I can also remove either from ... might be doing something wrong since I'm using React. Question&Answers:os...

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

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Regex to validate JSON

I am looking for a Regex that allows me to validate json. I am very new to Regex's and i know enough that ... Regex is bad but can it be used to validate? Question&Answers:os...

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

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380 views

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c# - How can I send a file document to the printer and have it print?

Here's the basic premise: My user clicks some gizmos and a PDF file is spit out to his desktop. Is there ... namespace for that) How would I accomplish this? Question&Answers:os...

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

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c# - How to save/restore serializable object to/from file?

I have a list of objects and I need to save that somewhere in my computer. I have read some forums ... object1 somewhere in my computer and later retrieve? Question&Answers:os...

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

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355 views

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html - Margin-Top push outer div down

I have a header div as the first element in my wrapper div, but when I add a top margin to a h1 inside the header div ... </h1> <ul id="navbar"></ul> </div> Question&Answers:os...

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

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837 views

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ajax - POST JSON fails with 415 Unsupported media type, Spring 3 mvc

I am trying to send a POST request to a servlet. Request is sent via jQuery in this way: var productCategory = ... not. I'll show more code if needed. Thanks Question&Answers:os...

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

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python - matplotlib: can I create AxesSubplot objects, then add them to a Figure instance?

Looking at the matplotlib documentation, it seems the standard way to add an AxesSubplot to a Figure is to use Figure. ... ) ax = fig.axes.append(ax) return fig Question&Answers:os...

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

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449 views

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jquery - Wrap every 3 divs in a div

Is it possible to use nth-child selectors to wrap 3 divs using .wrapAll? I can't seem to work out the correct equation. so. ... </div> <div></div> </div> </div> Question&Answers:os...

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

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android - Environment.getExternalStorageDirectory() deprecated in API level 29 java

Working on android Java, recently updated SDK to API level 29 now there is a warning shown which states that ... } What will be the alternative for this? Question&Answers:os...

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

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68 views

1 answer

python - Pythonic way to print list items

I would like to know if there is a better way to print all objects in a Python list than this : myList = [ ... , why not as a simple statement outside a list ? Question&Answers:os...

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

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77 views

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How to upload file using Selenium WebDriver in Java

Can anyone let me know how to upload a file using Selenium by Java code? When I click on button in the ... . The browse button developed by Silverlight (C#). Question&Answers:os...

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

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363 views

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python - Pythonic way to combine two lists in an alternating fashion?

I have two lists, the first of which is guaranteed to contain exactly one more item than the second. I would ... be achieved? What's the most Pythonic approach? Question&Answers:os...

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

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