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Installed Ruby 1.9.3 with RVM but command line doesn't show ruby -v
...does something to RVM that produces lots of errors, the only safe way of fixing for now is to:
sudo apt-get --purge remove ruby-rvm
sudo rm -rf /usr/share/ruby-rvm /etc/rvmrc /etc/profile.d/rvm.sh
open new terminal and validate environment is clean from old RVM settings (should be no output):
en...
using statement with multiple variables [duplicate]
...ain the statements:
using (var sr = new StringReader(content))
using (var xtr = new XmlTextReader(sr))
{
obj = XmlSerializer.Deserialize(xtr) as TModel;
}
Note that the IDE will also support this indentation, i.e. it intentionally won’t try to indent the second using statement.
...
Local (?) variable referenced before assignment [duplicate]
...ide a function you will need to do define test1 as a global variable, for example:
test1 = 0
def testFunc():
global test1
test1 += 1
testFunc()
However, if you only need to read the global variable you can print it without using the keyword global, like so:
test1 = 0
def testFunc():
...
How to set xlim and ylim for a subplot in matplotlib [duplicate]
I would like to limit the X and Y axis in matplotlib but for a speific subplot. As I can see
subplot figure itself doesn't have any axis property. I want for example to change only the limits for the second plot!
...
c++文件流基本用法(ifstream, ostream,fstream) - C/C++ - 清泛网 - 专注C/C++及内核技术
...#include <fstream.h>
void main
{
ofstream file;
file.open("file.txt");
file<<"Hello file/n"<<75;
file.close();
}
例二: 读文件
#include <fstream.h>
void main
{
ifstream file;
char output[100];
int x;
file.open("file.txt");
file>>output;
cout<...
MFC 日期时间控件CDateTimeCtrl自绘 - C/C++ - 清泛网 - 专注C/C++及内核技术
MFC 日期时间控件CDateTimeCtrl自绘先看效果：方法同ComboBox自绘（http: www.tsingfun.com html 2016 code_1110 100.html），采用图片拼接的方式，本例实现较基础仍有细节待...先看效果：
方法同ComboBox自绘（https://www.tsingfun.com/down/code/100.html...
c#操作xml读取xml经过排序后再返回xml数据 - 更多技术 - 清泛网 - 专注C/C++及内核技术
c#操作xml读取xml经过排序后再返回xml数据本例C#读取xml并按照节点值排序后保存：XmlDocument doc = new XmlDocument();doc.Load("c: config.xml");XmlNodeList list = doc....本例C#读取xml并按照节点值排序后保存：
XmlDocument doc = new XmlDocument();
doc.Load...
net use命令使用方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... use \\0.0.0.0\dir "your password" /User:username /PERSISTENT:YES
net use x: \\0.0.0.0\dir "your password" /User:username /PERSISTENT:YES （映射到本地X盘符）
注意：密码一定用双引号，不可用单引号，不然会把单引号当作密码一部分导致可能出现如下...
Linux chmod命令用法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
Linux chmod命令用法chmod----改变一个或多个文件的存取模式(mode)chmod [options] mode files只能文件属主或特权用户才能使用该功能来改变文件存取模式。mo...chmod----改变一个或多个文件的存取模式(mode)
chmod [options] mode files
只能文...
c#操作xml读取xml经过排序后再返回xml数据 - .NET(C#) - 清泛IT论坛，有思想、有深度
XmlDocument doc = new XmlDocument();
doc.Load("c:\\config.xml");
XmlNodeList list = doc.SelectNodes("/configuration/item");
List<XmlNode> arrNode = new List<XmlNode>();
foreach (XmlNode node in list)
{
arrNode.Add(node);
}
// 关键：使用匿名方法...