std::thread detect
时间: 2023-09-03 14:08:02 浏览: 59
引用<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *2* *3* [std::thread和std::this_thread的详细说明](https://blog.csdn.net/weixin_43369786/article/details/129469335)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}}] [.reference_item style="max-width: 100%"]
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相关问题
std::thread detect参数
在引用和中提到,要将一个std::thread对象分离,需要满足一个条件,即该std::thread对象必须与一个正在执行的线程相关联。如果一个std::thread对象没有与执行线程相关联,则不能调用detach()进行分离。同样,检查一个std::thread对象是否可以被加入也需要满足相同的条件,即调用t.joinable()返回true时才能调用t.detach()。所以,std::thread的分离参数是指一个可以与std::thread对象关联的正在执行的线程。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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- *1* *2* [std::thread相关总结](https://blog.csdn.net/kahswdbb/article/details/127731906)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}}] [.reference_item style="max-width: 50%"]
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使用C++ thread编写多线程按键检测代码
以下是一个使用C++ thread编写多线程按键检测代码的示例:
```c++
#include <iostream>
#include <thread>
#include <chrono>
// 检测按键的线程函数
void detect_key_thread()
{
while (true)
{
if (GetAsyncKeyState(VK_ESCAPE))
{
std::cout << "按下了 ESC 键" << std::endl;
}
else if (GetAsyncKeyState(VK_SPACE))
{
std::cout << "按下了 SPACE 键" << std::endl;
}
std::this_thread::sleep_for(std::chrono::milliseconds(100));
}
}
int main()
{
// 创建检测按键的线程
std::thread detect_key(detect_key_thread);
// 主线程等待按键检测线程结束
detect_key.join();
return 0;
}
```
这个程序会创建一个新的线程`detect_key_thread`,该线程会不断地检测用户是否按下了 ESC 键或 SPACE 键,如果按下了就会在控制台输出相应的提示信息。主线程会等待按键检测线程结束,然后退出程序。在`detect_key_thread`函数中,我们使用了`GetAsyncKeyState`函数来检测键盘按键状态,并使用`std::this_thread::sleep_for`函数来控制检测按键的频率。
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