浮动( Float )概述 浮动和文字环绕 浮动框就是一个框在当前行被向左或向右挪动(偏移),它不在常规流中,浮动框由浮动元素的框组成。 浮动框( 'float', 'floated' or 'floating' box )最有趣的特性是内容(Line Box)可以沿着它的边缘渲染(设置 'clea ...
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其他好文 时间:
2016-06-01 12:51:54
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215
1.One is CGFloat.It’s a floating point number.All floating point numbers that have to do with drawing on the screen or getting touch events or whateve ...
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移动开发 时间:
2016-05-29 23:15:37
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246
IEEE 754-1985 was an industry standard for representing floating-point numbers in computers, officially adopted in 1985 and superseded in 2008 by IEEE ...
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其他好文 时间:
2016-05-22 15:08:34
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311
Floating Form Designer You can now detach the form designer in both, VCL and FireMonkey. You can enable or disable the embedded designer in the Form D ...
This post shows how the Quantum L3 Agent uses the Linux IP stack to implement the Quantum L3 Routing and NAT API extensions. It explains in detail how ...
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其他好文 时间:
2016-05-13 18:55:37
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244
4.1 centos环境准备
目标:修改answer-file,将controller+network放在一个节点,compute-storage放在另一个节点,使用packstack部署双节点环境
hostname
IP
Floating ip
Function
lxp-node1
192.16...
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其他好文 时间:
2016-05-12 19:03:10
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2940
常量
常量(Constant)是程序中最基本的元素,有字符(Character)常量、
整数(Integer)常量、浮点数(Floating Point)常量和枚举常量。
下面看一个例子:
printf("character: %c\n integer: %d\n floating point: %f\n", '}', 34, 3.14);
常量在程序加载内存的常量区...
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编程语言 时间:
2016-05-12 18:32:28
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221
FloatingActionButton源码解析背景FloatingActionButton(下文以fab代替)是android support design组件库中提供的一个视图控件,是material design设计中fab的官方实现。此控件的官方介绍如下:
Floating action buttons are used for a promoted action. They are d...
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其他好文 时间:
2016-05-03 10:52:44
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662
人们很早就在Quake3源代码中发现了类似如下的C代码,它可以快速的求1/sqrt(x),在3D图形向量计算方面应用很广
float invSqrt(float x)
{
float xhalf = 0.5 * x;
int i = *(int*)&x; // get bits for floating value
i = 0x5f3759df - (i >> 1); // gives ...
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编程语言 时间:
2016-04-29 17:31:54
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385
https://msdn.microsoft.com/en-us/library/k9hz8w9t(v=vs.110).aspx Compares two single-precision floating point numbers for equality and, if they are eq ...
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其他好文 时间:
2016-04-28 15:27:06
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143