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C/C++ 如何向上取整？ - C/C++ - 清泛网 - 专注C/C++及内核技术
C/C++ 如何向上取整？一般地，向上取整有两种方法：#include <math.h>int _tmain(int argc, _TCHAR* argv[]){int a = 6, b = 5; ceil函数printf("%d...一般地，向上取整有两种方法：
#include <math.h>
int _tmain(int argc, _TCHAR* argv[])
{
int a = 6, b = 5;
//ce...
c/c++浮点输出时，不显示小数点后没用的0 - C/C++ - 清泛网 - 专注C/C++及内核技术
c/c++浮点输出时，不显示小数点后没用的0用%g格式符就可以了。%g用来输出实数，它根据数值的大小，自动选f格式或e格式（选择输出时占宽度较小的一种），且不输出无意义的0。即%g是 用%g格式符就可以了。%g用来输出实数，...
c/c++如何获取CPU的序列号？ - C/C++ - 清泛网 - 专注C/C++及内核技术
c/c++如何获取CPU的序列号？获取CPU序列表的完整实例代码如下：#include "stdafx.h"#include <afx.h>CString GetCpuSerial(){unsigned long st1 = 0;un...获取CPU序列表的完整实例代码如下：
#include "stdafx.h"
#include <afx.h>
CString GetCpuSerial()
{
unsigne...
[源码实例] c/c++获取网卡mac地址 - C/C++ - 清泛网 - 专注C/C++及内核技术
[源码实例] c/c++获取网卡mac地址代码如下：#include "stdafx.h"#include <afx.h>#include < nb30.h > #pragma comment(lib,"netapi32.lib")typedef struct _ASTAT...代码如下：
#include "stdafx.h"
#include <afx.h>
#include < nb30.h >
#pragma comment(lib,"netapi32.lib")
typedef s...
[完整实例源码]C&C++修改文件只读属性 - C/C++ - 清泛网 - 专注C/C++及内核技术
[完整实例源码]C&C++修改文件只读属性先使用GetFileAttributes获取文件属性，判断该文件是否是只读，然后SetFileAttributes修改文件属性。代码如下：#include "stdafx.h"int _...先使用GetFileAttributes获取文件属性，判断该文件是否是只读，然...
c/c++ volatile和mutable关键字 - C/C++ - 清泛网 - 专注C/C++及内核技术
c/c++ volatile和mutable关键字1 volatile关键字：一个定义为volatile的变量是说这变量可能会被意想不到地改变，这样，编译器就不会去假设这个变量的值了。例如：假设编译 1、volatile关键字：
一个定义为volatile的变量是说这变量可...
Cast a Double Variable to Decimal
How does one cast a double to decimal which is used when doing currency development. Where does the M go?
5 Answers
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How Should I Declare Foreign Key Relationships Using Code First Entity Framework (4.1) in MVC3?
I have been searching for resources on how to declare foreign key relationships and other constraints using code first EF 4.1 without much luck. Basically I am building the data model in code and using MVC3 to query that model. Everything works via MVC which is great (kudos to Microsoft!) but now I ...
Breaking up long strings on multiple lines in Ruby without stripping newlines
We recently decided at my job to a ruby style guide. One of the edicts is that no line should be wider than 80 characters. Since this is a Rails project, we often have strings that are a little bit longer - i.e. " User X wanted to send you a message about Thing Y " that doesn't always fit within the...