大约有 42,000 项符合查询结果（耗时：0.0472秒） [XML]
String vs. StringBuilder
I understand the difference between String and StringBuilder ( StringBuilder being mutable) but is there a large performance difference between the two?
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How can I parse a YAML file from a Linux shell script?
I wish to provide a structured configuration file which is as easy as possible for a non-technical user to edit (unfortunately it has to be a file) and so I wanted to use YAML. I can't find any way of parsing this from a Unix shell script however.
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What does |= (ior) do in Python?
Google won't let me search |= so I'm having trouble finding relevant documentation. Anybody know?
8 Answers
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How/when to use ng-click to call a route?
Suppose you are using routes:
8 Answers
8
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How to declare an array in Python?
How do I declare an array in Python ?
16 Answers
16
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How do malloc() and free() work?
I want to know how malloc and free work.
13 Answers
13
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Understanding the meaning of the term and the concept - RAII (Resource Acquisition is Initialization
Could you C++ developers please give us a good description of what RAII is, why it is important, and whether or not it might have any relevance to other languages?
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Strings as Primary Keys in SQL Database [closed]
I am not very familiar with databases and the theories behind how they work. Is it any slower from a performance standpoint (inserting/updating/querying) to use Strings for Primary Keys than integers?
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How do I represent a time only value in .NET?
Is there a way one can represent a time only value in .NET without the date? For example, indicating the opening time of a shop?
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What is the difference between Strategy design pattern and State design pattern?
What are the differences between the Strategy design pattern and the State design pattern? I was going through quite a few articles on the web but could not make out the difference clearly.
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