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bash - sudo echo "something" >> /etc/privilegedFile doesn't work

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

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ios - Having a UITextField in a UITableViewCell

I'm trying to do that for a couple of days now, and after reading tons of messages of people trying to ... a UITextField in a UITableViewCell, that works fine? Question&Answers:os...

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

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iphone - How to load a UIView using a nib file created with Interface Builder

I'm trying to do something a bit elaborate, but something that should be possible. So here is a ... , without needing to create a viewController class. Question&Answers:os...

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

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java - Design Patterns: Factory vs Factory method vs Abstract Factory

I was reading design patterns from a website There I read about Factory, Factory method and Abstract factory ... any java examples related to these patterns? Question&Answers:os...

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

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composer php - CakePHP 3.0 installation: intl extension missing from system

Using the CakePHP docs, I am trying to install 3.0-beta2 using composer but I got this error: cakephp/cakephp 3.0.x-dev ... 'm using PHP 5.4.33/Apache 2.4.10.1 Question&Answers:os...

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

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windows - Batch character escaping

I'm fairly proficient at writing Batch scripts for Windows, but even after all these years how to correctly escape ... 'll even settle for a good cheat sheet. Question&Answers:os...

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

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python - Pycharm and sys.argv arguments

I am trying to debug a script which takes command line arguments as an input. Arguments are text files in the same ... with arguments? P.S. I am on Ubuntu Question&Answers:os...

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

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Generating all distinct permutations of a list in R

I'm trying to create a list of permutations of a list, such that, for example, perms(list("a", "b", ... how to proceed, any help would be greatly appreciated. Question&Answers:os...

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

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regex - Parsing scientific notation sensibly?

I want to be able to write a function which receives a number in scientific notation as a string and splits out ... on VBScript and can be found on my weblog. Question&Answers:os...

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

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How to convert string to datetime format in pandas python?

I have a column I_DATE of type string(object) in a dataframe called train as show below. I_DATE 28-03-2012 2:15 ... rows based on a range of dates in pandas? Question&Answers:os...

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

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r - Update data frame via function doesn't work

I ran into a little problem using R In the following data frame test <- data.frame(v1=c(rep(1,3),rep(2,3 ... frame in the function? Thanks a lot for any help! Question&Answers:os...

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

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javafx - Is @FXML needed for every declaration?

Is @FXML needed for every declaration or just for the first? In other words, should I use @FXML public ... ; public checkBox checkAllCheckBox ; Thank you! Question&Answers:os...

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

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android - Overriding the Home button - how do I get rid of the choice?

When creating one Intent so that MyActivity reacts to a User pressing the Home-button is easy using the XML ... should NOT be associated with the Home button. Question&Answers:os...

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

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javascript - Difference between defer().promise and Promise

I know defer separates promises states control and process, here using Q as an example, the promise returned ... : https://github.com/jiananshi/Promise-polyfill Question&Answers:os...

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

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java - Why do I get the "Unhandled exception type IOException"?

I have the following simple code: import java.io.*; class IO { public static void main(String[] args) { ... the sum web site (here). Did I oversimplify? Question&Answers:os...

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

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php - Why is mysqli giving a "Commands out of sync" error?

I am trying to run the following. <?php $db = mysqli_connect("localhost","user","pw") or die("Database ... guide does not seem to be applicable. Any ideas? Question&Answers:os...

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

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authentication - Secure https encryption for iPhone app to webpage

I want to sell an iPhone app, that will house a single web view to a web page, say http://www.myapp. ... authentication to the page) Can anyone help with this? Question&Answers:os...

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

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javascript - Meteor.publish: publish collection which depends on other collection

I have a publish function as follows: Meteor.publish('tasks', function (name) { var project = Projects. ... publish function re-publish when project changes ? Question&Answers:os...

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

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arrays - Expanding column cells for each column cell

I have 3 different sets of data (in different columns) Animals (5 different kinds) in column A Fruits (1000 different ... the results should turn out: ???????? Question&Answers:os...

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

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java - What is the backslash character (\)?

What is the string literal \ backslash? What does it do? I have thought about it but I do not understand ... What is the significance of this string literal? Question&Answers:os...

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

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r - Combine Multiple Columns Into Tidy Data

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

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sas - Why won't my macro variable resolve?

I have a macro variable, &myvar, but it won't resolve when I try to put it in a data step variable. Why won't it, ... ; data _null_; x='&myvar.'; put x=; run; Question&Answers:os...

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

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python - Checking multiple values for a variable

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

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powershell - How can I store output from Format-Table for later use

I have a script that creates several jobs and stores two simple values in the jobs. Start-Job -ScriptBlock {param ([ ... 192.168.0.2 False 192.168.0.251 True Question&Answers:os...

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

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prolog - Delete vowels in a list

Write a program that deletes vowels (String, NoVowelsString) that deletes all vowels from a given string. So far I' ... ]. Though I still haven't got anywhere. Question&Answers:os...

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

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git - How to find a deleted file in the project commit history?

Once upon a time, there was a file in my project that I would now like to be able to get. The problem is ... I locate the commits of this file when it existed? Question&Answers:os...

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

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How do you clear the SQL Server transaction log?

I'm not a SQL expert, and I'm reminded of the fact every time I need to do something beyond the basics. I ... is. How do I clear out the transaction log? Question&Answers:os...

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

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205 views

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c++ - When to use dynamic vs. static libraries

When creating a class library in C++, you can choose between dynamic (.dll, .so) and static (.lib, .a) ... between them and when is it appropriate to use which? Question&Answers:os...

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

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