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ipc - How do I run a Perl script from within a Perl script?

I've got a Perl script that needs to execute another Perl script. This second script can be executed directly on ... off invocation is the right fit for this.) Question&Answers:os...

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

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android - App on Google Play always shows "Update" instead of open

Closed. This question is not reproducible or was caused by typos. 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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262 views

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c# - Getting Coordinates of string using ITextExtractionStrategy and LocationTextExtractionStrategy in Itextsharp

I have a PDF file that i am reading into string using ITextExtractionStrategy.Now from the string i am ... this substring using ITEXTSHARP.. Please help. Question&Answers:os...

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

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Send data from TableView to DetailView Swift

I'm trying to do maybe one of the simplest and more confusing things for me until now I wanna develop my own App ... and anything runs ok How we can do this??? Question&Answers:os...

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

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casperjs - downloading a file that comes as an attachment in a POST request response in PhantomJs

I want to download a CSV file, it is generated on a button click through a POST request. I researched to my ... Apr 2013 23:26:40 GMT Content-Length: 65183 Question&Answers:os...

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

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javascript - How to get the background color of an HTML element?

How can I get the background color of any element, like a div, using JavaScript? I have tried: <html> <body> <div ... (styleProp); return y; } </script> </html> Question&Answers:os...

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

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html - How can I align two divs horizontally?

This question already has answers here: Question&Answers:os...

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

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python - How to pass an argument to event handler in tkinter?

widget.bind('<Button-1>',callback) # binding def callback(self,event) #do something I need to pass an argument ... () . The argument is a dictionary object. Question&Answers:os...

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

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c# - disable mouse wheel on itemscontrol in wpf

I have a usercontrol that has a scrollviewer, then a bunch of child controls like text boxes, radio buttons, and ... true; } but that didnt work either. Thanks Question&Answers:os...

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

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python - Selenium and iframe in html

Unable to use send_key() for a iframe. How to select this iframe and which element inside this should be use for ... i go for "view page source " in browser? Question&Answers:os...

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

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audio - Java - reading, manipulating and writing WAV files

In a Java program, what is the best way to read an audio file (WAV file) to an array of numbers (float[], ... and to write a WAV file from an array of numbers? Question&Answers:os...

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

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html - problem with <select> and :after with CSS in WebKit

I would like to add some style on a select box with the pseudo :after (to style my select box with 2 parts and ... } So is it normal or is there a trick? Question&Answers:os...

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

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c# - Is String.Contains() faster than String.IndexOf()?

I have a string buffer of about 2000 characters and need to check the buffer if it contains a specific string. Will do ... int i; i = s1.IndexOf(s2); Fun fact Question&Answers:os...

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

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php - Fatal error: [] operator not supported for strings

I'm getting information from database, saving it in array and echoing it in a form with loop structure and I'm having ... give me a hint what I'm doing wrong? Question&Answers:os...

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

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sql - Adding a leading zero to some values in column in MySQL

I have a CSV file sent to me in CSV. The field of interest is 8 digits. Some of those started with ... 12345678 1234567 I need to have this: 12345678 01234567 Question&Answers:os...

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

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199 views

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shell - Unix time and leap seconds

Regarding Unix (POSIX) time, Wikipedia says: Due to its handling of leap seconds, it is neither a linear ... while the concept of Unix time doesn't? Question&Answers:os...

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

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219 views

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Android getText from EditText field

I have a problem with getting text from EditText field to insert it in Email composer with intent. I've declared ... , maybe this is a part of the problem? Question&Answers:os...

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

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219 views

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sql - Using 'case expression column' in where clause

SELECT ename , job , CASE deptno WHEN 10 THEN 'ACCOUNTS' WHEN 20 THEN 'SALES' ELSE 'UNKNOWN' END AS ... the 'case expression column' in where clause ? Question&Answers:os...

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

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416 views

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linux - How to interleave lines from two text files

What's the easiest/quickest way to interleave the lines of two (or more) text files? Example: File 1: line1. ... fewer code, maybe a one-liner using Unix tools? Question&Answers:os...

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

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android - java.lang.NoSuchMethodError: No static method getFont(Landroid/content/Context;ILandroid/util/TypedValue;ILandroid/widget/TextView;)

After I updated my Android Studio to 3.0 I am getting No static method getFont() error. The project ... android.internal.os.ZygoteInit.main(ZygoteInit.java:767) Question&Answers:os...

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

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211 views

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Difference between obtrusive and unobtrusive javascript

What is the difference between obtrusive and unobtrusive javascript - in plain english. Brevity is appreciated. Short examples are also appreciated. Question&Answers:os...

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

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502 views

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php - phpmailer error "Could not instantiate mail function"

I'm using the mail() basic example modified slightly for my user id and I'm getting the error "Mailer Error: Could not ... } else { echo "Message sent!"; } ?> Question&Answers:os...

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

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156 views

1 answer

How to open or simulate a click on an android Preference, created with XML, programmatically?

I've an android application with preferences declared in XML, loaded with addPreferencesFromResource. The user can open ... no possibility to do this from code. Question&Answers:os...

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

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185 views

1 answer

Java Web Start support in Java 9 and beyond

I'm confused about the status of Java Web Start. On Oracle's Support Roadmap we can read this: Support ... announcement about the deprecation of Java Web Start? Question&Answers:os...

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

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71 views

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java - Sharing session data between contexts in Tomcat

I have been looking at solutions for sharing session data between mutliple war files. I came across the following ... there a better way of doing it? Thanks Question&Answers:os...

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

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438 views

1 answer

python - How do I get an event callback when a Tkinter Entry widget is modified?

Exactly as the question says. Text widgets have the <<Modified>> event, but Entry widgets don't appear to. Question&Answers:os...

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

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256 views

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javascript - Uncaught TypeError: Cannot read property 'value' of undefined

I have some JavaScript code that gives this error Uncaught TypeError: Cannot read property 'value' of undefined Code var ... Pwd'; } What does this error mean? Question&Answers:os...

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

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270 views

1 answer

Parsing JSON DateTime from Newtonsoft's JSON Serializer

I've serialized an object using Newtonsoft's JSON serializer, and the DateTime has come through as: /Date(1237588418563+ ... Any ideas what I can do with this? Question&Answers:os...

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

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