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asked Feb 5, 2021 in Others[杂七杂八] by ostack (1.4k points)

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1 answer 242 views

c++ - How to have an unordered_map where the value type is the class it's in?

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

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1 answer 298 views

java - Creating new generic object with wildcard

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

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1 answer 221 views

c++ - Check at Compile-Time if Template Argument is void

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

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1 answer 197 views

Valgrind reports errors for a very simple C program

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

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1 answer 422 views

scala - How to flatmap a nested Dataframe in Spark

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

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1 answer 393 views

ios - Swift equivalent to `[NSDictionary initWithObjects: forKeys:]`

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

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1 answer 692 views

window.onbeforeunload not working in chrome

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

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1 answer 173 views

android - how do i send data back from onPostExecute in an AsyncTask?

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

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1 answer 324 views

MediaRecorder and VideoSource.SURFACE, stop failed: -1007 (a serious Android bug)

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

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1 answer 767 views

prolog - Intersection and union of 2 lists

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

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1 answer 327 views

c - Wrong format specifiers in scanf (or) printf

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

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1 answer 518 views

cpu - x86 registers: MBR/MDR and instruction registers

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

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1 answer 131 views

android - Appropriate multiplication of matrices for rotation/translation

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

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1 answer 262 views

Comparing Bitmap images in Android

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

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1 answer 231 views

C: Expand Macro With Token Pasting

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

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1 answer 325 views

html - Text not centered with justify-content: center

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

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1 answer 163 views

ios - Foreign key relationship mapping with RestKit

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

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1 answer 420 views

html - PHP keep checkbox checked after submitting form

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

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1 answer 170 views

Is there any reason to declare ivars if you're using properties exclusively in Objective-C?

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

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1 answer 274 views

php - Is it possible to read cookie/session value while executing PHP5 script through command prompt?

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

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1 answer 157 views

Move initial commits off master to another branch in Git

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

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1 answer 188 views

python - How to let a raw_input repeat until I want to quit?

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

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1 answer 1.3k views

syntax - What exactly is `&:capitalize` in Ruby?

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

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1 answer 183 views

javascript - How to only get new data without existing data from a Firebase?

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

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1 answer 314 views

c - What's bad about shifting a 32-bit variable 32 bits?

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

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1 answer 673 views

css - Is a concave border radius possible?

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

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1 answer 319 views

List files in a directory using only javascript

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

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1 answer 297 views

java - Prevent Swing GUI locking up during a background task

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

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1 answer 885 views

python - Scaling of Tkinter GUI in 4k (3840*2160) resolution?

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

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1 answer 131 views

performance - Speed-efficient classification in Matlab

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

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1 answer 208 views

python - Handling of duplicate indices in NumPy assignments

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

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1 answer 261 views

Is it possible to dynamically build a multi-dimensional array in Java?

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

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1 answer 154 views

c++ - no match for ‘operator<<’ in ‘std::operator

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

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1 answer 178 views

.net - Insert into C# with SQLCommand

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

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1 answer 1.2k views

pointers - Why is the return type of Deref::deref itself a reference?

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

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