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uitableview - How to add a subview that has its own UIViewController in Objective-C?

I am struggling with subviews that have their own UIViewControllers. I have a UIViewController with a view (light pink) ... . Do I still need to instantiate it? Question&Answers:os...

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

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c - No out of bounds error

I have this code in C which takes in bunch of chars #include<stdio.h> # define NEWLINE ' ' int main() ... anyone please explain what is the reason for this? Question&Answers:os...

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

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python - Saving utf-8 texts with json.dumps as UTF8, not as u escape sequence

Sample code: >>> import json >>> json_string = json.dumps("??? ????") >>> print(json_string) " ... objects into UTF-8 JSON strings (instead of uXXXX)? Question&Answers:os...

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

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c++ - #pragma once vs include guards?

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

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C: differences between char pointer and array

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

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c - How to generate a random integer number from within a range

This is a follow on from a previously posted question: How to generate a random number in C? I wish to be able to ... of a die. How would I go about doing this? Question&Answers:os...

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

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increment - ++someVariable vs. someVariable++ in JavaScript

In JavaScript you can use ++ operator before (pre-increment) or after the variable name (post-increment). ... between these ways of incrementing a variable? Question&Answers:os...

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

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c - What can I use for input conversion instead of scanf?

I have very frequently seen people discouraging others from using scanf and saying that there are better alternatives ... , and strings) without using scanf? Question&Answers:os...

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

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java - How to make an executable JAR file?

I have a program which consists of two simple Java Swing files. How do I make an executable JAR file for my program? Question&Answers:os...

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

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c# - Convert HTML to PDF in .NET

I want to generate a PDF by passing HTML contents to a function. I have made use of iTextSharp for this but ... layout just gets messy. Is there a better way? Question&Answers:os...

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

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html - Click button copy to clipboard using jQuery

How do I copy the text inside a div to the clipboard? I have a div and need to add a link which will add the ... , then I press Ctrl + V, it must be pasted. Question&Answers:os...

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

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MySQL - UPDATE query based on SELECT Query

I need to check (from the same table) if there is an association between two events based on date-time. One ... , run a UPDATE query with the SELECT nested? Question&Answers:os...

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

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c# - Capture screenshot of active window?

I am making a screen capturing application and everything is going fine. All I need to do is capture the active window ... . Does anyone know how I can do this? Question&Answers:os...

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

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Android global variable

How can I create global variable keep remain values around the life cycle of the application regardless which activity running. Question&Answers:os...

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

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types - biggest integer that can be stored in a double

What is the biggest "no-floating" integer that can be stored in an IEEE 754 double type without losing precision ? Question&Answers:os...

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

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rest - Best practices for API versioning?

Closed. This question is opinion-based. 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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c# - Elevating process privilege programmatically?

I'm trying to install a service using InstallUtil.exe but invoked through Process.Start. Here's the code: ... it didn't seem to solve the problem. Question&Answers:os...

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

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131 views

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java - Android, getting resource ID from string?

I need to pass a resource ID to a method in one of my classes. It needs to use both the id that the reference ... to pass to the method is the "icon" string. Question&Answers:os...

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

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python - What is a good way to draw images using pygame?

I would like to know how to draw images using pygame. I know how to load them. I have made a blank ... draw the image and instead leaves the screen blank. Question&Answers:os...

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

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c++ - What are the rules for calling the base class constructor?

What are the C++ rules for calling the base class constructor from a derived class? For example, I know in Java ... you a compile error if that's missing). Question&Answers:os...

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

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357 views

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java - Why do this() and super() have to be the first statement in a constructor?

Java requires that if you call this() or super() in a constructor, it must be the first statement. ... not have this restriction, something bad would happen? Question&Answers:os...

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

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439 views

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xmlhttprequest - How does JavaScript handle AJAX responses in the background?

Since JavaScript runs in a single thread, after an AJAX request is made, what actually happens in the background? ... into this, can anyone shed some light? Question&Answers:os...

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

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python - Can a variable number of arguments be passed to a function?

In a similar way to using varargs in C or C++: fn(a, b) fn(a, b, c, d, ...) Question&Answers:os...

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

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313 views

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java - ResultSet exception - before start of result set

I'm having trouble getting data from a ResultSet object. Here is my code: String sql = "SELECT type FROM node ... Main.java:38) What am I doing wrong here? Question&Answers:os...

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

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python - Print in one line dynamically

I would like to make several statements that give standard output without seeing newlines in between statements. Specifically, ... is on the screen at a time? Question&Answers:os...

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

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102 views

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Parameter evaluation order before a function calling in C

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

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510 views

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jquery - What's the best way to detect a 'touch screen' device using JavaScript?

I've written a jQuery plug-in that's for use on both desktop and mobile devices. I wondered if there is a ... 's device has a touch screen. Is that possible? Question&Answers:os...

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

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html - How to write a:hover in inline CSS?

I have a case where I must write inline CSS code, and I want to apply a hover style on an anchor. How can ... you can't reliably use CSS classes in HTML emails. Question&Answers:os...

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

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