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Java string split with “.” (dot) [duplicate]
...o split on a literal dot:
String extensionRemoved = filename.split("\\.")[0];
Otherwise you are splitting on the regex ., which means "any character".
Note the double backslash needed to create a single backslash in the regex.
You're getting an ArrayIndexOutOfBoundsException because your input...
How to set xlim and ylim for a subplot in matplotlib [duplicate]
...
260
You should use the OO interface to matplotlib, rather than the state machine interface. Almost ...
What does %>% mean in R [duplicate]
...Length Petal.Width Species
1 5.1 3.5 1.4 0.2 setosa
2 4.9 3.0 1.4 0.2 setosa
3 4.7 3.2 1.3 0.2 setosa
4 4.6 3.1 1.5 0.2 setosa
5 5.0 3.6 ...
几个有趣的Javascript Hack - 创意 - 清泛网 - 专注C/C++及内核技术
...辑网页内容
javascript：document.body.contentEditable='true';void(0);
访问任意网站，在地址栏输入以上代码，会发生当前网页已经变成编辑模式了。将上述代码中的true改成false重新执行一遍即可恢复。
2. 舞动的图片
javascript：R=0; ...
std::string截取字符串，截取ip:port - C/C++ - 清泛网 - 专注C/C++及内核技术
std::string截取字符串，截取ip:portstd::string ip("127.0.0.1:8888");int index = ip.find_last_of(':'); 获取ipip.substr(0, index).c_str(); 获取portip.substr(index + 1).c_str();std::string ip("127.0.0.1:8888");
int index = ip.find_last_of(':');
// 获取ip
ip.substr(0, index).c_str();...
CreateWindow()动态创建一个EditBox - C/C++ - 清泛网 - 专注C/C++及内核技术
... // 创建EditBox
HWND m_wndEdit = CreateWindow(_T("EDIT"), 0, WS_CHILD | WS_VISIBLE | ES_WANTRETURN,
70, 4, 60, 16, m_hWnd, 0, 0, 0);
// 显示
::ShowWindow(m_wndEdit, SW_SHOW);
常见错误解决思路：
1.创建失败，不显示输入框等...
cgridctrl 单元格下拉，单元格事件 - C/C++ - 清泛网 - 专注C/C++及内核技术
...
{
NM_GRIDVIEW* pItem = (NM_GRIDVIEW*) pNotifyStruct;
if(pItem->iRow >0 || pItem->iRow < m_gridDetail.GetRowCount())
{
if(2 == pItem->iColumn) //列号
{
//do something.
}
}
*pResult = 0;
}
另外，附上单元格下拉的代码：
#include "GridCtrl_src/GridCellCom...
c++ 代码调用nsis安装包实现静默安装 - C/C++ - 清泛网 - 专注C/C++及内核技术
...++ 代码调用nsis安装包实现静默安装TCHAR szCurPath[MAX_PATH] = {0};GetCurrentDirectory(MAX_PATH, szCurPath);TCHAR szFile[MAX_PATH] = {0};_stprintf_s(szFile, ...
TCHAR szCurPath[MAX_PATH] = {0};
GetCurrentDirectory(MAX_PATH, szCurPath);
TCHAR szFile[MAX_PATH] = {0};
_stprintf_s(szFil...
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
...e "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()
{
unsigned long st1 = 0;
unsigned long st2 = 0;
unsigned long s1,s2;
unsigned ...
error C2872: “count”: 不明确的符号 - C/C++ - 清泛网 - 专注C/C++及内核技术
...flict.cpp(4) : int count 或 C: Program Files Microsoft Visual Studio 11.0 V...error C2872: “count”: 不明确的符号
可能是“conflict.cpp(4) : int count” 或 “C:\Program Files\Microsoft Visual Studio 11.0\VC\INCLUDE\xutility(3251) : iterator_traits<_Iter>::difference_type std::cou...