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OceanBase使用libeasy原理源码分析：服务器端 - 数据库(内核) - 清泛网 - ...
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一、OceanBase启动时的使用模式
二、 基础数据结构
2.1 easy_list_t
2.2 easy_pool_t
2.3 easy_buf_t
2.4 easy_connection_t
三、 连接建立
四、 同步处理(OceanBase少量使用这种模式)
五、 异步处理(OceanBase大量采用这种模式)
六、 资源管...
How do I check for null values in JavaScript?
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19 Answers
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How to set enum to null
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edited Mar 11 '15 at 14:45
MikeTheLiar
3,97299 gold badges3939 silver badges6363 bronze badges
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How to print to console in pytest?
...n that particular test.
For example,
def test_good():
for i in range(1000):
print(i)
def test_bad():
print('this should fail!')
assert False
Results in the following output:
>>> py.test tmp.py
============================= test session starts ======================...
How to create byte array from HttpPostedFile
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edited May 5 '11 at 10:17
Robert MacLean
37.7k2424 gold badges9595 silver badges146146 bronze badges
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How can I convert this foreach code to Parallel.ForEach?
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string[] lines = File.ReadAllLines(txtProxyListPath.Text);
List<string> list_lines = new...
Declaring and initializing variables within Java switches
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114
Switch statements are odd in terms of scoping, basically. From section 6.3 of the JLS:
The...
C语言结构体里的成员数组和指针 - c++1y / stl - 清泛IT社区，为创新赋能！
...0;
}复制代码
你编译一下上面的代码，在VC++和GCC下都会在14行的printf处crash掉你的程序。@Laruence 说这个是个经典的坑，我觉得这怎么会是经典的坑呢？上面这代码，你一定会问，为什么if语句判断的不是f.a？而是f.a里面的数组？...
How do I calculate the normal vector of a line segment?
Suppose I have a line segment going from (x1,y1) to (x2,y2). How do I calculate the normal vector perpendicular to the line?
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