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Select Pandas rows based on list index
...
ayhan
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answered Oct 3 '13 at 9:43
Woody PrideWoody P...
Why aren't my ball (objects) shrinking/disappearing?
....
First, in your definition:
var shrink = function(p) {
for (var i = 0; i < 100; i++) {
p.radius -= 1;
}
function asplode(p) {
setInterval(shrink(p),100);
balls.splice(p, 1);
}
}
asplode is local to the scope inside shrink and therefore not accessible...
C语言判断文件是否存在 - C/C++ - 清泛网 - 专注C/C++及内核技术
...io.h,原型:int access(const char *filename, int amode);amode参数为0时表示检查文件的存在性,如果文件存...用函数access,头文件是io.h,原型:
int access(const char *filename, int amode);
amode参数为0时表示检查文件的存在性,如果文件存在,返...
STL:accumulate与自定义数据类型 - C/C++ - 清泛网 - 专注C/C++及内核技术
...器中C++内置数据类型,例如:
#include <numeric>
int arr[]={10,20,30,40,50};
vector<int> va(&arr[0],&arr[5]);
int sum=accumulate(va.begin(),va.end(),0); //sum = 150
但是对于自定义数据类型,我们就需要自己动手写一个类来实现自定义数据的处理,然后...
c++获取windows程序的版本号 - C/C++ - 清泛网 - 专注C/C++及内核技术
...rsionInfoSize((LPTSTR)lpszModuleName, &dwHandle);
if ( dwDataSize == 0 )
return FALSE;
// Allocate buffer and retrieve version information
LPBYTE lpVersionData = new BYTE[dwDataSize];
if (!::GetFileVersionInfo((LPTSTR)lpszModuleName, dwHandle, dwDataSize,
...
c++ 写日志通用类,可设置日志级别 - C/C++ - 清泛网 - 专注C/C++及内核技术
...#include <atlstr.h>
#pragma warning(disable:4996)
#define LEVEL_FATAL 0
#define LEVEL_ERROR 1
#define LEVEL_WARN 2
#define LEVEL_INFO 3
#define LEVEL_VERBOSE 4
#define LEVEL_DEBUG 5
static int nLoggerLevel = LEVEL_INFO;
void SetLoggerLevel(int nLevel);
void Log(int nLevel, LPCSTR ...
mfc从CImageList中获取CBitmap位图对象 - C/C++ - 清泛网 - 专注C/C++及内核技术
...map * pBmpOld = dcMemory.SelectObject(&Bitmap);
dcMemory.FillSolidRect(0, 0, nWidth, nHeight, RGB(255,255,255));
ImageList.Draw(&dcMemory, nImageIdx, CPoint(0,0), ILD_NORMAL);
dcMemory.SelectObject(pBmpOld);
dcMemory.DeleteDC();
::DeleteObject( ImageInfo.hbmImage );
::DeleteObject( Ima...
WSAAsyncSelect模型 - C/C++ - 清泛网 - 专注C/C++及内核技术
...RD sockVersion = MAKEWORD(2, 2);
if(WSAStartup(sockVersion, &wsaData) != 0)
{
return 0;
}
USHORT nPort=4567;
SOCKET s=socket(AF_INET,SOCK_STREAM,0);
sockaddr_in sin;
sin.sin_family=AF_INET;
sin.sin_port=ntohs(nPort);
sin.sin_addr.S_un.S_addr=INADDR_ANY;
if(bind(s,(sockaddr*)&s...
vc/mfc *通配符 批量删除文件 - C/C++ - 清泛网 - 专注C/C++及内核技术
...me;
FileOp.pTo = NULL;
if (SHFileOperation(&FileOp) != 0)
printf("删除文件:%S失败(Error:%d)\n", delFileName, GetLastError());
return 0;
}
经过测试,文件路径必须为绝对路径,相对路径会操作失败。
获取当前路径拼...
MFC 设置控件字体,颜色,大小,粗体,下划线等 - C/C++ - 清泛网 - 专注C/...
...码:CFont *f = new CFont; f->CreateFont(16, nHeight 0, nWidth ...参考代码:
CFont *f = new CFont;
f->CreateFont(16, // nHeight
0, // nWidth
0, // nEscapement
0, // nOrientation
FW_BOLD, //...
