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C++实现一款简单完整的聊天室服务器+客户端 - C/C++ - 清泛网 - 专注C/C++及内核技术
C++实现一款简单完整的聊天室服务器+客户端Linux下select函数实现的聊天服务器消息缓冲区类MessageBuffer，接收线程将受到的消息放入缓冲区，发送线程从缓冲区中取出消息MessageBuffe...目录：
Linux下select函数实现的聊天服务器
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What does the question mark in Java generics' type parameter mean?
...is used to define wildcards. Checkout the Oracle documentation about them: http://docs.oracle.com/javase/tutorial/java/generics/wildcards.html
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MySQL ON vs USING?
In a MySQL JOIN , what is the difference between ON and USING() ? As far as I can tell, USING() is just more convenient syntax, whereas ON allows a little more flexibility when the column names are not identical. However, that difference is so minor, you'd think they'd just do away with USI...
What are differences between AssemblyVersion, AssemblyFileVersion and AssemblyInformationalVersion?
There are three assembly version attributes. What are differences? Is it ok if I use AssemblyVersion and ignore the rest?
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Entity Framework 4 - AddObject vs Attach
...eUploader: {
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How to convert SecureString to System.String?
All reservations about unsecuring your SecureString by creating a System.String out of it aside , how can it be done?
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What is the best java image processing library/approach? [closed]
...reat for my needs. Not sure if it fits yours. Here's a Java port, I think:
http://docs.opencv.org/2.4/doc/tutorials/introduction/desktop_java/java_dev_intro.html
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Are HTTP headers case-sensitive?
...s are not case sensitive.
From RFC 2616 - "Hypertext Transfer Protocol -- HTTP/1.1", Section 4.2, "Message Headers":
Each header field consists of a name followed by a colon (":") and the field value. Field names are case-insensitive.
The updating RFC 7230 does not list any changes from RFC ...
Inserting data into a temporary table
After having created a temporary table and declaring the data types like so;
12 Answers
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Delete rows from a pandas DataFrame based on a conditional expression involving len(string) giving K
I have a pandas DataFrame and I want to delete rows from it where the length of the string in a particular column is greater than 2.
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