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[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
...' add readonly attr success.\n", strPath);
}
return 0;
}
D盘新建一个test.txt普通文件后，第一次运行（添加只读属性）：
第二次运行（移除只读属性）：
C++ 只读属性 GetFileAttributes SetFileAttributes
bundler vs RVM vs gems vs RubyGems vs gemsets vs system ruby [closed]
...f Ruby (it is itself packaged as a gem), but it a "de facto standard" for most applications (you will not find many people not using it, and no good reasons not to use it, actually).
RVM is a tool allowing you to install multiple versions of Ruby on a machine, switching between them when needed. Th...
What is __init__.py for?
...answered Nov 7 '10 at 3:31
caritoscaritos
9,21622 gold badges1414 silver badges1515 bronze badges
...
Is JavaScript guaranteed to be single-threaded?
...e question of whether browsers really implement their JS engines using one OS-thread, or whether other limited threads-of-execution are introduced by WebWorkers.)
However, in reality this isn't quite true, in sneaky nasty ways.
The most common case is immediate events. Browsers will fire these rig...
编译错误 error: ‘typeof’ cannot be used as a function - C/C++ - 清泛网 - 专注C/C++及内核技术
...键字。
注：C++11标准的话，请使用 -std=gnu++11
GNC CC是一个功能非常强大的跨平台C编译器，它对C 语言提供了很多扩展，这些扩展对优化、目标代码布局、更安全的检查等方面提供了很强的支持。Linux 内核代码使用了大量的 GNU ...
Build an iOS app without owning a mac? [closed]
...years back I was in same situation.
So We have two Phases
iPhone/iPad (iOS) app development
iPhone/iPad (iOS) app development and Publish to iTunes Store
1. iPhone/iPad (iOS) app development
So If you just want to develop iOS apps you don't want to pay anything,
You just need Mac + XCode IDE
...
Making macOS Installer Packages which are Developer ID ready
Note: This is for OS X Installer packages only, packages for submission to the Mac App Store follow different rules.
5 ...
std::string的截取字符串的方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...字符串。
int find_last_of(char c):
查找字符串中最后一个出现的c。有匹配，则返回匹配位置；否则返回-1.该搜索在字符末尾查找匹配，所以没有提供起始位置。std::string 字符串 截取
Windows下如何判断Win32 or x64？ - C/C++ - 清泛网 - 专注C/C++及内核技术
...序），而 _WIN64 用来判断编译环境是 x86 还是 x64。最后附一个表：
常量\定义
预定义选项
Windows.h
VC编译器
WIN32
Win32
√(minwindef.h)
×
_WIN32
×
×
√
_WIN64
×
×
x64
...
stl 字符串std::string作为std::map主键key的实例 - C/C++ - 清泛网 - 专注C/C++及内核技术
stl 字符串std::string作为std::map主键key的实例本文通过一个实例介绍std::map字符串作为key的常见用法，并使用find_if实现map按value值查找。代码如下：
#include <map>
#include <string>
#include <algorithm>
using namespace std;
class map_value_finder
{...