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TCP 的那些事儿（下） - 更多技术 - 清泛网 - 专注C/C++及内核技术
...不同的情况来动态调整自己的发包的速度，小则让自己的连接更稳定，大则让整个网络更稳定。在你阅读下篇之前，你需要做好准备，本篇文章有好些算法和策略，可能会引发你的各种思考，让你的大脑分配很多内存和计算资源...
How can I remove an element from a list?
...it documentation for R on how to remove elements from lists, but trial and error tells me
myList[[5]] <- NULL
will remove the 5th element and then "close up" the hole caused by deletion of that element. That suffles the index values, So I have to be careful in dropping elements. I must ...
Your build failed due to an error in the AAPT stage, not because of an...
...浏览器 - 使用 FireFox、Chrome 或 Safari（最新版本）互联网连接不是最佳的网络防火墙正在阻止 App Inventor
目标设备（例如智能手机）没有设置“允许来自未知来源的应用程序”安全权限集 - 转到设置/应用程序/未知来源APK 是为比...
What is a method that can be used to increment letters?
... Glad it worked and thanks for the feedback. Maybe that initial error was there bcs the function titled same(str,char) was not pasted in there? I dunno.
– Ronnie Royston
Aug 18 '16 at 23:15
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Check variable equality against a list of values
...s. For special characters is becomes ugly due to escaping and is also more error-prone due to that.
/foo|bar|something/.test(str);
To be more precise, this will check the exact string, but then again is more complicated for a simple equality test:
/^(foo|bar|something)$/.test(str);
...
What is a typedef enum in Objective-C?
...mple:
enum tagname x; // declare x of type 'enum tagname'
tagname x; // ERROR in C/Objective-C, OK in C++
In order to avoid having to use the enum keyword everywhere, a typedef can be created:
enum tagname { ... };
typedef enum tagname tagname; // declare 'tagname' as a typedef for 'enum tagn...
Problem with converting int to string in Linq to entities
...mespace with EF6, the code will compile just fine but will throw a runtime error. I hope this note helps to avoid some confusion.
– Leo
Dec 22 '16 at 15:27
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if/else in a list comprehension
... because if my l = [ 2, 3, 4, 5] then [x if x % 2 == 0 for x in l] give me error whereas [x if x % 2 == 0 else 200 for x in l] works. Yes I know to filter it I should write [ x for x in l if x % 2 == 0]. Sorry for botheration. Thanks for your answer.
– Grijesh Chauhan
...
中关村服务辐射百万创业者 - 资讯 - 清泛网 - 专注C/C++及内核技术
...资本将在资本领域投入5亿元资金，带动50亿元资金汇入，连接各界300亿元资金在创新创业领域流动，为2000个创业项目提供资金支持。
此外，国际化布局成为清青创的重要组成部分。清青创全球版图横贯亚洲、美洲、欧洲，以“...
Using LIMIT within GROUP BY to get N results per group?
...imes 5 (first 5 years). The strings are truncated rather than throwing an error, so watch for warnings such as 1054 rows in set, 789 warnings (0.31 sec).
– Timothy Johns
Mar 15 '18 at 23:35
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