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What are my environment variables? [closed]
I would like to find out my environment variables in bash. Are they stored somewhere?
4 Answers
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Convert the values in a column into row names in an existing data frame
I would like to convert the values in a column of an existing data frame into row names. Is is possible to do this without exporting the data frame and then reimporting it with a row.names = call?
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How do you calculate program run time in python? [duplicate]
How do you calculate program run time in python?
5 Answers
5
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UILabel Align Text to center
How do I align text in UILabel ?
10 Answers
10
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MySql export schema without data
I'm using a MySql database with a Java program, now I want to give the program to somebody else.
13 Answers
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Interpret XMP-Metadata in ALAssetRepresentation
When a user makes some changes (cropping, red-eye removal, ...) to photos in the built-in Photos.app on iOS, the changes are not applied to the fullResolutionImage returned by the corresponding ALAssetRepresentation .
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What is the difference between .cc and .cpp file suffix? [duplicate]
What is the difference between .cc and .cpp file extensions?
4 Answers
4
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浮点数在内存中的表示 - C/C++ - 清泛网 - 专注IT技能提升
...的话可以直接修改自行验证其他的例子：
#include "stdafx.h"
#include <string.h>
#include <limits>
int _tmain(int argc, _TCHAR* argv[])
{
float f1 = FLT_MIN;
printf("%f\n", f1);
f1 = FLT_MAX;
printf("%f\n", f1);
// 0 10000101 11110110000000000000000
void * p = (v...
fstream默认不支持中文路径和输出整数带逗号的解决办法 - C/C++ - 清泛网 -...
...nclude <iostream>
#include <fstream>
#include <string>
#include <direct.h>
using namespace std;
void main()
{
_mkdir("测试"); //新建一个中文文件夹
ofstream outfile( "测试/test.txt", ios::out ); //创建文件
if( !outfile )
{
cout << "Failed to create file!...
CDHtmlDialog的基本使用（JS调用C++函数的实现） - C/C++ - 清泛网 - 专注IT技能提升
CDHtmlDialog的基本使用（JS调用C++函数的实现）CDHtmlDialog_js_call_cpp_interactiveCDHtmlDialog JS C++一、建立一个新的MFC Application工程，在下面这一步把HTML Dialog给勾上：二、修改工程中的JSCppInteractive.htm，代码如下：<HTML><HEA...一、建立一个...