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This is probably a very trivial question, but I haven't been able to find the answer neither through web ... Are there any differences between PHP4 and PHP5? Question&Answers:os...

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Is file append atomic in UNIX?

In general, what can we take for granted when we append to a file in UNIX from multiple processes? Is it ... what's the best way of ensuring mutual exclusion? Question&Answers:os...

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java - What is a good use case for static import of methods?

Just got a review comment that my static import of the method was not a good idea. The static import was of ... I think this too is a personal preference thing. Question&Answers:os...

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.net - How can I run an EXE file from my C# code?

I have an EXE file reference in my C# project. How do I invoke that EXE file from my code? Question&Answers:os...

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image gallery - android get real path by Uri.getPath()

I'm trying to get image from gallery. Intent intent = new Intent(); intent.setType("image/*"); intent.setAction( ... (just like '/sdcard/image.png') ? Thanks Question&Answers:os...

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debugging - How to debug Ruby scripts

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language design - Why doesn't Java support unsigned ints?

Why doesn't Java include support for unsigned integers? It seems to me to be an odd omission, given that ... division. What's the downside to including these? Question&Answers:os...

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urllib - How to send POST request?

I found this script online: import httplib, urllib params = urllib.urlencode({'number': 12524, 'type': 'issue', ... little help with trying to get this to work? Question&Answers:os...

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Python function attributes - uses and abuses

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android - Error:Cannot fit requested classes in a single dex file.Try supplying a main-dex list. # methods: 72477 > 65536

I want to add fused location services but it shows me some error. Help me. apply plugin: 'com.android. ... apply plugin: 'com.google.gms.google-services' Question&Answers:os...

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javascript - Remove not alphanumeric characters from string

I want to convert the following string to the provided output. Input: "\test edobfred ew" Output: "testredbobfrednew" ... , ''); Output 1: "testredbobfrednew" Question&Answers:os...

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javascript - AngularJS 1.2 $injector:modulerr

When using angular 1.2 instead of 1.07 the following piece of code is not valid anymore, why? 'use strict' ... correctly this issue started with angular 1.1.6. Question&Answers:os...

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python - Creating a dynamic choice field

I'm having some trouble trying to understand how to create a dynamic choice field in django. I have a model ... with any particular rider. Any ideas? Thanks. Question&Answers:os...

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networking - How can I see if there's an available and active network connection in Python?

I want to see if I can access an online API, but for that, I need to have Internet access. How can ... there's a connection available and active using Python? Question&Answers:os...

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iphone - Custom colors in UITabBar

Is it possible to use custom colors and background images in a UITabBar? I realize that Apple would like ... this violate Apple's Human Interface Guidelines? Question&Answers:os...

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iphone - dismissModalViewController AND pass data back

I have two view controllers, firstViewController and secondViewController. I am using this code to ... the firstViewController from the secondViewController. Question&Answers:os...

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performance - nth fibonacci number in sublinear time

Is there any algorithm to compute the nth fibonacci number in sub linear time? Question&Answers:os...

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gitignore - How do I ignore files in a directory in Git?

What is the proper syntax for the .gitignore file to ignore files in a directory? Would it be config/databases.yml cache/ ... /lib/model/map/* /lib/model/om/* ? Question&Answers:os...

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android - Changing the background drawable of the searchview widget

I'm trying to change the drawable that sits in the Android actionbar searchview widget. Currently it looks like ... me in the right direction to changing this? Question&Answers:os...

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Gulp error: The following tasks did not complete: Did you forget to signal async completion?

I have the following gulpfile.js, which I'm executing via the command line gulp message: var gulp = require('gulp'); ... 14:15:15] Local version 4.0.0-alpha.2 Question&Answers:os...

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python - How to split text without spaces into list of words

Input: "tableapplechairtablecupboard..." many words What would be an efficient algorithm to split such text to the ... but main thing is the algorithm itself. Question&Answers:os...

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How to screenshot website in JavaScript client-side / how Google did it? (no need to access HDD)

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ios - Xcode: What is a target and scheme in plain language?

Yeah the title says it :-) What do they mean in plain English language? I really don't understand the ... I'm afraid that nothing works after that.. Question&Answers:os...

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Find a string by searching all tables in SQL Server

Is there any way to search for a string in all tables of a database in SQL Server? I want to search ... the tables and their respective row that contain john. Question&Answers:os...

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ios - Cancel a UIView animation?

Is it possible to cancel a UIView animation while it is in progress? Or would I have to drop to the CA level? ... two people speculating that it can't be done. Question&Answers:os...

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WPF Blurry fonts issue- Solutions

Problem is described and demonstrated on the following links: Paul Stovell WPF: Blurry Text Rendering www. ... Text Blurriness, now with complete Clarity Question&Answers:os...

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sorting - How to sort an array in descending order in Ruby

I have an array of hashes: [ { :foo => 'foo', :bar => 2 }, { :foo => 'foo', :bar => 3 }, { ... |h| -h[:bar] } But that negative sign does not seem appropriate. Question&Answers:os...

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How to split a string literal across multiple lines in C / Objective-C?

I have a pretty long sqlite query: const char *sql_query = "SELECT statuses.word_id FROM lang1_words, statuses ... way to write queries in multiple lines? Question&Answers:os...

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

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