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Objective-C与C ++有何不同? [关闭] - How different is Objective-C from C++? [closed]

问题: What are the main differences between Objective-C and C++ in terms of the syntax, features, paradigms, frameworks and libraries? Objective-C和C ++在语法,功能,范例,框架...

如何在asp.net core中获取当前用户 - How to get current user in asp.net core

问题: I want to get the current user, so I can access fields like their email address.我想获取当前用户,以便我可以访问他们的电子邮件地址等字段。 But I can't do that in asp.net...

今天 11:18
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为什么django 的model.save() 不调用full_clean()? - Why doesn't django's model.save() call full_clean()?

问题: I'm just curious if anyone knows if there's good reason why django's orm doesn't call 'full_clean' on a model unless it is being saved as part of a model form.我只是很好奇...

Vim: How do you open another [No Name] buffer like the one on startup?

问题: In my Vimscript program, I need to open an additional Vim buffer that is not immediately associated with a file, but which the user can save to a file of her/his choosing...

今天 10:08
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为什么 Lua 没有“继续”语句? - Why does Lua have no "continue" statement?

问题: I have been dealing a lot with Lua in the past few months, and I really like most of the features but I'm still missing something among those:在过去的几个月里,我一直在与...

今天 10:06
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手动将用户脚本添加到 Google Chrome - Manually adding a Userscript to Google Chrome

问题: Instead of "installing" User-Scripts I found many tutorials on the web to add it manually.我在网上找到了许多教程来手动添加它,而不是“安装”用户脚本。 All of them told m...

新 Android Studio 中的 Apk 位置 - Apk location in New Android Studio

问题: 我开始使用新的 Android Studio,但在 IDE 中找不到应用程序的 APK,它实际位于何处? 解决方案: 参考:https://stackoom.com/en/question/17jiQ......

SQL逻辑运算符优先级:和和或 - SQL Logic Operator Precedence: And and Or

问题: Are the two statements below equivalent? 下面的两个语句是否等效? SELECT [...] FROM [...] WHERE some_col in (1,2,3,4,5) AND some_other_expr and 和 SELECT [...] FROM [......

今天 08:16
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Intellij IDEA:“从源代码滚动”的热键 - Intellij IDEA: Hotkey for "scroll from source"

问题: I can't find a hotkey for the feature "Scroll from Source".我找不到“从源代码滚动”功能的热键。 What is the difference between Scroll from Source and Scroll to Source as ...

今天 07:48
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如何在crontab中指定由哪个用户运行脚本? - How to specify in crontab by what user to run script?

问题: I have few crontab jobs that run under root, but that gives me some problems. 我在根目录下运行的crontab作业很少,但这给我带来了一些问题。 For example all folders created ...

在C中,为什么有些人在释放之前会抛出指针? - In C, why do some people cast the pointer before freeing it?

问题: I'm working on an old code base and pretty much every invocation of free() uses a cast on its argument. 我正在研究一个旧的代码库,几乎每次调用free()都会在其参数上使用强...

今天 07:17
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“#pragma comment”是什么意思? - What does “#pragma comment” mean?

问题: What does #pragma comment mean in the following? #pragma comment在以下内容中意味着什么? #pragma comment(lib, "kernel32") #pragma comment(lib, "user32") 解决方案: 参考:...

今天 07:12
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What is “Power Save Mode” in IntelliJ IDEA and other Jetbrains IDEs?

问题: I see no readily available Google search results that answer this question. 我看不到回答这个问题的Google搜索结果。 What is it, and what is it used for? 它是什么,它用于什...

今天 06:25
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你可以在一个多行的 HTML5 占位符文本<textarea> ? - Can you have multiline HTML5 placeholder text in a <textarea>?

问题: I have ghost text in textfields that disappear when you focus on them using HTML5's placeholder attribute:当您使用 HTML5 的占位符属性关注它们时,我在文本字段中有幻影文本会...

使用@viewchild 访问多个viewchildren - Access multiple viewchildren using @viewchild

问题: I have created a custom component which i have placed in a for loop eg我创建了一个自定义组件,我将其放置在 for 循环中,例如 <div *ngFor="let view of views"> <customcompon...

今天 04:32
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如何在字符串文字中插入换行符? - How to insert newline in string literal?

问题: 在 .NET 中,我可以同时提供\\r或\\n字符串文字,但是有一种方法可以插入诸如Environment.NewLine静态属性之类的“换行”特殊字符之类的东西? 解决方案: 参考:https://stackoom.co...

今天 04:15
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How do you format the day of the month to say "11th", "21st" or "23rd" (ordinal indicator)?

问题: I know this will give me the day of the month as a number ( 11 , 21 , 23 ):我知道这会给我一个月中的某一天作为数字( 11 , 21 , 23 ): SimpleDateFormat formatDayOfMonth = ...

今天 04:09
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Swift:将枚举值转换为字符串? - Swift: Convert enum value to String?

问题: Given the following enum:鉴于以下枚举: enum Audience { case Public case Friends case Private } How do I get the string "Public" from the audience constant below?如何从下...

今天 03:12
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使用ASP.Net MVC与Web表单的最大优势 - Biggest advantage to using ASP.Net MVC vs web forms

问题: 与另一种相比,使用一种有什么优点? 解决方案: 参考:https://stackoom.com/en/question/QgA

如何将字符串更改为 QString? - How to change string into QString?

问题: 最基本的方法是什么? 解决方案: 参考:https://stackoom.com/en/question/7bx7

今天 00:43
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