大约有 43,000 项符合查询结果（耗时：0.0490秒） [XML]
What exactly does an #if 0 … #endif block do?
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142
Not only does it not get executed, it doesn't even get compiled.
#if is a preprocessor command...
this.setState isn't merging states as I would expect
...construct a new state and then call setState() on that:
var newSelected = _.extend({}, this.state.selected);
newSelected.name = 'Barfoo';
this.setState({ selected: newSelected });
I've used function _.extend() function (from underscore.js library) here to prevent modification to the existing sele...
Why does volatile exist?
...one. Essentially we did this:
void waitForSemaphore()
{
volatile uint16_t* semPtr = WELL_KNOWN_SEM_ADDR;/*well known address to my semaphore*/
while ((*semPtr) != IS_OK_FOR_ME_TO_PROCEED);
}
Without volatile, the optimizer sees the loop as useless (The guy never sets the value! He's nuts, g...
Difference between numpy.array shape (R, 1) and (R,)
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554
1. The meaning of shapes in NumPy
You write, "I know literally it's list of numbers and list of...
What's the yield keyword in JavaScript?
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14 Answers
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Pass correct “this” context to setTimeout callback?
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edited Jun 11 '19 at 4:33
answered Jan 25 '10 at 5:40
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How can I use if/else in a dictionary comprehension?
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4 Answers
4
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What should I name a table that maps two tables together? [closed]
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24 Answers
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How to properly create composite primary keys - MYSQL
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answered Apr 29 '11 at 18:47
AlexCuseAlexCuse
17k55 gold badges3838 silver badges5151 bronze badges
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ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C++内核技术
...没有这样的划分，每个队端对端协议的微小更改都将如IPv4到IPv6转换一般痛苦。 理念是网络上的每个节点都实现了IP，然而，只有使用特定端对端协议比如TCP的终端节点可以意识到它。换句话说，中间节点比如路由器不需要理解...