[CPP] 知识点QA

编程语言C++
[C++primer5笔记代码资料](https://github.com/youngyangyang04/TechCPP/tree/master/docs/C++primer5%E7%AC%94%E8%AE%B0%E4%BB%A3%E7%A0%81%E8%B5%84%E6%96%99)
[volatile static const extern等关键字](https://github.com/youngyangyang04/TechCPP/blob/master/problems/volatile,static,const,extern%E7%AD%89%E5%85%B3%E9%94%AE%E5%AD%97.md)
[宏定义和展开、内联函数区别](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%AE%8F%E5%AE%9A%E4%B9%89%E5%92%8C%E5%B1%95%E5%BC%80%E3%80%81%E5%86%85%E8%81%94%E5%87%BD%E6%95%B0%E5%8C%BA%E5%88%AB.md)
常用库函数实现
[malloc,strcpy,strcmp的实现，常用库函数实现，哪些库函数属于高危函数](https://github.com/youngyangyang04/TechCPP/blob/master/problems/malloc,strcpy,strcmp%E7%9A%84%E5%AE%9E%E7%8E%B0%EF%BC%8C%E5%B8%B8%E7%94%A8%E5%BA%93%E5%87%BD%E6%95%B0%E5%AE%9E%E7%8E%B0%EF%BC%8C%E5%93%AA%E4%BA%9B%E5%BA%93%E5%87%BD%E6%95%B0%E5%B1%9E%E4%BA%8E%E9%AB%98%E5%8D%B1%E5%87%BD%E6%95%B0.md)
[STL原理及实现](https://github.com/youngyangyang04/TechCPP/blob/master/problems/STL%E5%8E%9F%E7%90%86%E5%8F%8A%E5%AE%9E%E7%8E%B0.md)
[虚函数的作用和实现原理，什么是虚函数,有什么作用?](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E8%99%9A%E5%87%BD%E6%95%B0%E7%9A%84%E4%BD%9C%E7%94%A8%E5%92%8C%E5%AE%9E%E7%8E%B0%E5%8E%9F%E7%90%86%EF%BC%8C%E4%BB%80%E4%B9%88%E6%98%AF%E8%99%9A%E5%87%BD%E6%95%B0,%E6%9C%89%E4%BB%80%E4%B9%88%E4%BD%9C%E7%94%A8.md)
[纯虚函数，为什么需要纯虚函数？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E7%BA%AF%E8%99%9A%E5%87%BD%E6%95%B0%EF%BC%8C%E4%B8%BA%E4%BB%80%E4%B9%88%E9%9C%80%E8%A6%81%E7%BA%AF%E8%99%9A%E5%87%BD%E6%95%B0.md)
[为什么需要虚析构函数,什么时候不需要?](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E4%B8%BA%E4%BB%80%E4%B9%88%E9%9C%80%E8%A6%81%E8%99%9A%E6%9E%90%E6%9E%84%E5%87%BD%E6%95%B0,%E4%BB%80%E4%B9%88%E6%97%B6%E5%80%99%E4%B8%8D%E9%9C%80%E8%A6%81.md)
[内联函数、构造函数、静态成员函数可以是虚函数吗?](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%86%85%E8%81%94%E5%87%BD%E6%95%B0%E3%80%81%E6%9E%84%E9%80%A0%E5%87%BD%E6%95%B0%E3%80%81%E9%9D%99%E6%80%81%E6%88%90%E5%91%98%E5%87%BD%E6%95%B0%E5%8F%AF%E4%BB%A5%E6%98%AF%E8%99%9A%E5%87%BD%E6%95%B0%E5%90%97.md)
[构造函数中可以调用虚函数吗?](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E6%9E%84%E9%80%A0%E5%87%BD%E6%95%B0%E4%B8%AD%E5%8F%AF%E4%BB%A5%E8%B0%83%E7%94%A8%E8%99%9A%E5%87%BD%E6%95%B0%E5%90%97.md)
[为什么需要虚继承?虚继承实现原理解析](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E4%B8%BA%E4%BB%80%E4%B9%88%E9%9C%80%E8%A6%81%E8%99%9A%E7%BB%A7%E6%89%BF.md)
[虚函数是针对类还是针对对象的？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E8%99%9A%E5%87%BD%E6%95%B0%E6%98%AF%E9%92%88%E5%AF%B9%E7%B1%BB%E8%BF%98%E6%98%AF%E9%92%88%E5%AF%B9%E5%AF%B9%E8%B1%A1%E7%9A%84%EF%BC%9F.md)
[同一个类的两个对象的虚函数表是如何维护的？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%90%8C%E4%B8%80%E4%B8%AA%E7%B1%BB%E7%9A%84%E4%B8%A4%E4%B8%AA%E5%AF%B9%E8%B1%A1%E7%9A%84%E8%99%9A%E5%87%BD%E6%95%B0%E8%A1%A8%E6%98%AF%E5%A6%82%E4%BD%95%E7%BB%B4%E6%8A%A4%E7%9A%84%EF%BC%9F.md)
[C++ 内存分配机制](https://github.com/youngyangyang04/TechCPP/blob/master/problems/C++%E5%86%85%E5%AD%98%E5%88%86%E9%85%8D.md)
指针
[迭代器与普通指针有什么区别](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E8%BF%AD%E4%BB%A3%E5%99%A8%E4%B8%8E%E6%99%AE%E9%80%9A%E6%8C%87%E9%92%88%E6%9C%89%E4%BB%80%E4%B9%88%E5%8C%BA%E5%88%AB.md)
[C++的智能指针及其原理](https://github.com/youngyangyang04/TechCPP/blob/master/problems/C++%E7%9A%84%E6%99%BA%E8%83%BD%E6%8C%87%E9%92%88%E5%8F%8A%E5%85%B6%E5%8E%9F%E7%90%86.md)
[悬挂指针和野指针有什么区别？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E6%82%AC%E6%8C%82%E6%8C%87%E9%92%88%E5%92%8C%E9%87%8E%E6%8C%87%E9%92%88%E6%9C%89%E4%BB%80%E4%B9%88%E5%8C%BA%E5%88%AB%EF%BC%9F.md)
[指针常量和常量指针的区别](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E6%8C%87%E9%92%88%E5%B8%B8%E9%87%8F%E5%92%8C%E5%B8%B8%E9%87%8F%E6%8C%87%E9%92%88%E7%9A%84%E5%8C%BA%E5%88%AB.md)
[指针和引用有什么区别呢？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%A6%82%E4%BD%95%E9%81%BF%E5%85%8D%E6%82%AC%E6%8C%82%E6%8C%87%E9%92%88%EF%BC%9F.md)
[如何避免悬挂指针？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%A6%82%E4%BD%95%E9%81%BF%E5%85%8D%E6%82%AC%E6%8C%82%E6%8C%87%E9%92%88%EF%BC%9F.md)
[override和overload的区别](https://github.com/youngyangyang04/TechCPP/blob/master/problems/override%E5%92%8Coverload%E7%9A%84%E5%8C%BA%E5%88%AB%E6%9C%89%E9%82%A3%E4%BA%9B.md)
[写string类的构造，析构，拷贝函数](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%86%99string%E7%B1%BB%E7%9A%84%E6%9E%84%E9%80%A0%EF%BC%8C%E6%9E%90%E6%9E%84%EF%BC%8C%E6%8B%B7%E8%B4%9D%E5%87%BD%E6%95%B0.md)
[C++中类成员的访问权限有那些？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/C++%E4%B8%AD%E7%B1%BB%E6%88%90%E5%91%98%E7%9A%84%E8%AE%BF%E9%97%AE%E6%9D%83%E9%99%90%E6%9C%89%E9%82%A3%E4%BA%9B%EF%BC%9F.md)
[C++多态的实现有那几种？他们有什么不同？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/C++%E5%A4%9A%E6%80%81%E7%9A%84%E5%AE%9E%E7%8E%B0%E6%9C%89%E9%82%A3%E5%87%A0%E7%A7%8D%EF%BC%9F%E4%BB%96%E4%BB%AC%E6%9C%89%E4%BB%80%E4%B9%88%E4%B8%8D%E5%90%8C%EF%BC%9F.md)
[C++中右值引用有什么作用？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/C++%E4%B8%AD%E5%8F%B3%E5%80%BC%E5%BC%95%E7%94%A8%E6%9C%89%E4%BB%80%E4%B9%88%E4%BD%9C%E7%94%A8%EF%BC%9F.md)
[面向对象的三大特征是什么](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E9%9D%A2%E5%90%91%E5%AF%B9%E8%B1%A1%E7%9A%84%E4%B8%89%E5%A4%A7%E7%89%B9%E5%BE%81%E6%98%AF%E4%BB%80%E4%B9%88.md)
[静态分配内存和动态分配内存有什么区别？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E9%9D%99%E6%80%81%E5%88%86%E9%85%8D%E5%86%85%E5%AD%98%E5%92%8C%E5%8A%A8%E6%80%81%E5%88%86%E9%85%8D%E5%86%85%E5%AD%98%E6%9C%89%E4%BB%80%E4%B9%88%E5%8C%BA%E5%88%AB%EF%BC%9F.md)
[C++结构体内存对齐](https://github.com/youngyangyang04/TechCPP/blob/master/problems/C++%E7%BB%93%E6%9E%84%E4%BD%93%E5%86%85%E5%AD%98%E5%AF%B9%E9%BD%90.md)
[讲一讲C++中的原子操作有那些？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E8%AE%B2%E4%B8%80%E8%AE%B2C++%E4%B8%AD%E7%9A%84%E5%8E%9F%E5%AD%90%E6%93%8D%E4%BD%9C%E6%9C%89%E9%82%A3%E4%BA%9B%EF%BC%9F.md)
[简单说说STL中的优先级队列是如何实现的？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E7%AE%80%E5%8D%95%E8%AF%B4%E8%AF%B4STL%E4%B8%AD%E7%9A%84%E4%BC%98%E5%85%88%E7%BA%A7%E9%98%9F%E5%88%97%E6%98%AF%E5%A6%82%E4%BD%95%E5%AE%9E%E7%8E%B0%E7%9A%84%EF%BC%9F.md)
[C++中动态链接库和静态连接库的区别是什么？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/C++%E4%B8%AD%E5%8A%A8%E6%80%81%E9%93%BE%E6%8E%A5%E5%BA%93%E5%92%8C%E9%9D%99%E6%80%81%E8%BF%9E%E6%8E%A5%E5%BA%93%E7%9A%84%E5%8C%BA%E5%88%AB%E6%98%AF%E4%BB%80%E4%B9%88%EF%BC%9F.md)
[在C++中，对一个对象先malloc后delete这样使用可以吗？有什么风险？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%9C%A8C++%E4%B8%AD%EF%BC%8C%E5%AF%B9%E4%B8%80%E4%B8%AA%E5%AF%B9%E8%B1%A1%E5%85%88malloc%E5%90%8Edelete%E8%BF%99%E6%A0%B7%E4%BD%BF%E7%94%A8%E5%8F%AF%E4%BB%A5%E5%90%97%EF%BC%9F%E6%9C%89%E4%BB%80%E4%B9%88%E9%A3%8E%E9%99%A9%EF%BC%9F.md)
[在C++中，三个全局变量相互依赖，程序应该如何初始化呢？300个呢？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%9C%A8C++%E4%B8%AD%EF%BC%8C%E4%B8%89%E4%B8%AA%E5%85%A8%E5%B1%80%E5%8F%98%E9%87%8F%E7%9B%B8%E4%BA%92%E4%BE%9D%E8%B5%96%EF%BC%8C%E7%A8%8B%E5%BA%8F%E5%BA%94%E8%AF%A5%E5%A6%82%E4%BD%95%E5%88%9D%E5%A7%8B%E5%8C%96%E5%91%A2%EF%BC%9F300%E4%B8%AA%E5%91%A2%EF%BC%9F.md)
[STL中的优先级队列是如何实现的？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/STL%E4%B8%AD%E7%9A%84%E4%BC%98%E5%85%88%E7%BA%A7%E9%98%9F%E5%88%97%E6%98%AF%E5%A6%82%E4%BD%95%E5%AE%9E%E7%8E%B0%E7%9A%84%EF%BC%9F.md)
[如果拿到虚函数表的储存地址，是否可以改写虚函数表的内容？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%A6%82%E6%9E%9C%E6%8B%BF%E5%88%B0%E8%99%9A%E5%87%BD%E6%95%B0%E8%A1%A8%E7%9A%84%E5%82%A8%E5%AD%98%E5%9C%B0%E5%9D%80%EF%BC%8C%E6%98%AF%E5%90%A6%E5%8F%AF%E4%BB%A5%E6%94%B9%E5%86%99%E8%99%9A%E5%87%BD%E6%95%B0%E8%A1%A8%E7%9A%84%E5%86%85%E5%AE%B9%EF%BC%9F.md)
[在C++中为什么需要深拷贝，浅拷贝会存在哪些问题？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%9C%A8C++%E4%B8%AD%E4%B8%BA%E4%BB%80%E4%B9%88%E9%9C%80%E8%A6%81%E6%B7%B1%E6%8B%B7%E8%B4%9D%EF%BC%8C%E6%B5%85%E6%8B%B7%E8%B4%9D%E4%BC%9A%E5%AD%98%E5%9C%A8%E5%93%AA%E4%BA%9B%E9%97%AE%E9%A2%98%EF%BC%9F.md)
[如何构造一个类使得只能在堆上或者栈上分配内存？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%A6%82%E4%BD%95%E6%9E%84%E9%80%A0%E4%B8%80%E4%B8%AA%E7%B1%BB%E4%BD%BF%E5%BE%97%E5%8F%AA%E8%83%BD%E5%9C%A8%E5%A0%86%E4%B8%8A%E6%88%96%E8%80%85%E6%A0%88%E4%B8%8A%E5%88%86%E9%85%8D%E5%86%85%E5%AD%98%EF%BC%9F.md)
[什么是C++的内存模型？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E4%BB%80%E4%B9%88%E6%98%AFC++%E7%9A%84%E5%86%85%E5%AD%98%E6%A8%A1%E5%9E%8B%EF%BC%9F.md)
[指针和引用在内存中的表现形式有何不同？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E6%8C%87%E9%92%88%E5%92%8C%E5%BC%95%E7%94%A8%E5%9C%A8%E5%86%85%E5%AD%98%E4%B8%AD%E7%9A%84%E8%A1%A8%E7%8E%B0%E5%BD%A2%E5%BC%8F%E6%9C%89%E4%BD%95%E4%B8%8D%E5%90%8C%EF%BC%9F.md)
[内存映射文件是什么？如何用它来处理大文件？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%86%85%E5%AD%98%E6%98%A0%E5%B0%84%E6%96%87%E4%BB%B6%E6%98%AF%E4%BB%80%E4%B9%88%EF%BC%9F%E5%A6%82%E4%BD%95%E7%94%A8%E5%AE%83%E6%9D%A5%E5%A4%84%E7%90%86%E5%A4%A7%E6%96%87%E4%BB%B6%EF%BC%9F.md)
[C++中结构体内存布局的规则是什么？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/C++%E4%B8%AD%E7%BB%93%E6%9E%84%E4%BD%93%E5%86%85%E5%AD%98%E5%B8%83%E5%B1%80%E7%9A%84%E8%A7%84%E5%88%99%E6%98%AF%E4%BB%80%E4%B9%88%EF%BC%9F.md)
[在C++中，用堆和用栈谁更快一点？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%9C%A8C++%E4%B8%AD%EF%BC%8C%E7%94%A8%E5%A0%86%E5%92%8C%E7%94%A8%E6%A0%88%E8%B0%81%E6%9B%B4%E5%BF%AB%E4%B8%80%E7%82%B9%EF%BC%9F.md)
[C++中struct和class有什么区别？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/C++%E4%B8%ADstruct%E5%92%8Cclass%E6%9C%89%E4%BB%80%E4%B9%88%E5%8C%BA%E5%88%AB%EF%BC%9F.md)
[如果A这个对象对应的类是一个空类，那么sizeof(A)的值是多少？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%A6%82%E6%9E%9CA%E8%BF%99%E4%B8%AA%E5%AF%B9%E8%B1%A1%E5%AF%B9%E5%BA%94%E7%9A%84%E7%B1%BB%E6%98%AF%E4%B8%80%E4%B8%AA%E7%A9%BA%E7%B1%BB%EF%BC%8C%E9%82%A3%E4%B9%88sizeof(A)%E7%9A%84%E5%80%BC%E6%98%AF%E5%A4%9A%E5%B0%91%EF%BC%9F.md)
[如果A这个指针指向一个数组，那么sizeof(A)的值是多少？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%A6%82%E6%9E%9CA%E8%BF%99%E4%B8%AA%E6%8C%87%E9%92%88%E6%8C%87%E5%90%91%E4%B8%80%E4%B8%AA%E6%95%B0%E7%BB%84%EF%BC%8C%E9%82%A3%E4%B9%88sizeof(A)%E7%9A%84%E5%80%BC%E6%98%AF%E5%A4%9A%E5%B0%91%EF%BC%9F.md)
[如果A是某一个类的指针，那么在它等于nullptr的情况下能直接调用里面的A对应类里面的public函数吗？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%A6%82%E6%9E%9CA%E6%98%AF%E6%9F%90%E4%B8%80%E4%B8%AA%E7%B1%BB%E7%9A%84%E6%8C%87%E9%92%88%EF%BC%8C%E9%82%A3%E4%B9%88%E5%9C%A8%E5%AE%83%E7%AD%89%E4%BA%8Enullptr%E7%9A%84%E6%83%85%E5%86%B5%E4%B8%8B%E8%83%BD%E7%9B%B4%E6%8E%A5%E8%B0%83%E7%94%A8%E9%87%8C%E9%9D%A2%E7%9A%84A%E5%AF%B9%E5%BA%94%E7%B1%BB%E9%87%8C%E9%9D%A2%E7%9A%84public%E5%87%BD%E6%95%B0%E5%90%97%EF%BC%9F.md)
[STL中一般都有那些常见的算法库呢？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/STL%E4%B8%AD%E4%B8%80%E8%88%AC%E9%83%BD%E6%9C%89%E9%82%A3%E4%BA%9B%E5%B8%B8%E8%A7%81%E7%9A%84%E7%AE%97%E6%B3%95%E5%BA%93%E5%91%A2%EF%BC%9F.md)
[C++中，结构体可以直接赋值吗？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/C++%E4%B8%AD%EF%BC%8C%E7%BB%93%E6%9E%84%E4%BD%93%E5%8F%AF%E4%BB%A5%E7%9B%B4%E6%8E%A5%E8%B5%8B%E5%80%BC%E5%90%97%EF%BC%9F.md)
[#define和const的区别有那些？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/#define%E5%92%8Cconst%E7%9A%84%E5%8C%BA%E5%88%AB%E6%9C%89%E9%82%A3%E4%BA%9B%EF%BC%9F.md)
[在C++的map中，[]与insert有那些区别？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%9C%A8C++%E7%9A%84map%E4%B8%AD%EF%BC%8C%5B%5D%E4%B8%8Einsert%E6%9C%89%E9%82%A3%E4%BA%9B%E5%8C%BA%E5%88%AB%EF%BC%9F.md)
[在32位和64位系统中，指针分别为多大？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%9C%A832%E4%BD%8D%E5%92%8C64%E4%BD%8D%E7%B3%BB%E7%BB%9F%E4%B8%AD%EF%BC%8C%E6%8C%87%E9%92%88%E5%88%86%E5%88%AB%E4%B8%BA%E5%A4%9A%E5%A4%A7%EF%BC%9F.md)
[weak_ptr是如何解决shared_ptr循环引用的？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/weak_ptr%E6%98%AF%E5%A6%82%E4%BD%95%E8%A7%A3%E5%86%B3shared_ptr%E5%BE%AA%E7%8E%AF%E5%BC%95%E7%94%A8%E7%9A%84%EF%BC%9F.md)
[虚函数是否可以声明为static？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E8%99%9A%E5%87%BD%E6%95%B0%E6%98%AF%E5%90%A6%E5%8F%AF%E4%BB%A5%E5%A3%B0%E6%98%8E%E4%B8%BAstatic%EF%BC%9F.md)
[如何使用gdb来定位C++程序中的死锁？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%A6%82%E4%BD%95%E4%BD%BF%E7%94%A8gdb%E6%9D%A5%E5%AE%9A%E4%BD%8DC++%E7%A8%8B%E5%BA%8F%E4%B8%AD%E7%9A%84%E6%AD%BB%E9%94%81%EF%BC%9F.md)
[C++中常用的类优化技术有那些？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/C++%E4%B8%AD%E5%B8%B8%E7%94%A8%E7%9A%84%E7%B1%BB%E4%BC%98%E5%8C%96%E6%8A%80%E6%9C%AF%E6%9C%89%E9%82%A3%E4%BA%9B%EF%BC%9F.md)
[C++的atomic代码底层是如何实现的？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/C++%E7%9A%84atomic-bool%E4%BB%A3%E7%A0%81%E5%BA%95%E5%B1%82%E6%98%AF%E5%A6%82%E4%BD%95%E5%AE%9E%E7%8E%B0%E7%9A%84%EF%BC%9F.md)
[原子变量的内存序是什么？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%8E%9F%E5%AD%90%E5%8F%98%E9%87%8F%E7%9A%84%E5%86%85%E5%AD%98%E5%BA%8F%E6%98%AF%E4%BB%80%E4%B9%88%EF%BC%9F.md)
[什么是左值？什么是右值？有什么不同？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E4%BB%80%E4%B9%88%E6%98%AF%E5%B7%A6%E5%80%BC%EF%BC%9F%E4%BB%80%E4%B9%88%E6%98%AF%E5%8F%B3%E5%80%BC%EF%BC%9F%E6%9C%89%E4%BB%80%E4%B9%88%E4%B8%8D%E5%90%8C%EF%BC%9F.md)
[什么是完美转发？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E4%BB%80%E4%B9%88%E6%98%AF%E5%AE%8C%E7%BE%8E%E8%BD%AC%E5%8F%91%EF%BC%9F.md)
[C++中四种cast的转换？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/C++%E4%B8%AD%E5%9B%9B%E7%A7%8Dcast%E7%9A%84%E8%BD%AC%E6%8D%A2%EF%BC%9F.md)
[内存池是什么？在C++中如何设计一个简单的内存池？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%86%85%E5%AD%98%E6%B1%A0%E6%98%AF%E4%BB%80%E4%B9%88%EF%BC%9F%E5%9C%A8C++%E4%B8%AD%E5%A6%82%E4%BD%95%E8%AE%BE%E8%AE%A1%E4%B8%80%E4%B8%AA%E7%AE%80%E5%8D%95%E7%9A%84%E5%86%85%E5%AD%98%E6%B1%A0%EF%BC%9F.md)
[STL中，map的底层是如何实现的？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/STL%E4%B8%AD%EF%BC%8Cmap%E7%9A%84%E5%BA%95%E5%B1%82%E6%98%AF%E5%A6%82%E4%BD%95%E5%AE%9E%E7%8E%B0%E7%9A%84%EF%BC%9F.md)
[STL中，set的底层是如何实现的？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/STL%E4%B8%AD%EF%BC%8Cset%E7%9A%84%E5%BA%95%E5%B1%82%E6%98%AF%E5%A6%82%E4%BD%95%E5%AE%9E%E7%8E%B0%E7%9A%84%EF%BC%9F.md)
[set，mutiset，map，mutimap之间都有什么区别？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/set%EF%BC%8Cmutiset%EF%BC%8Cmap%EF%BC%8Cmutimap%E4%B9%8B%E9%97%B4%E9%83%BD%E6%9C%89%E4%BB%80%E4%B9%88%E5%8C%BA%E5%88%AB%EF%BC%9F.md)
[在C++的算法库中，find()和binary_search()有什么区别？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%9C%A8C++%E7%9A%84%E7%AE%97%E6%B3%95%E5%BA%93%E4%B8%AD%EF%BC%8Cfind()%E5%92%8Cbinary_search()%E6%9C%89%E4%BB%80%E4%B9%88%E5%8C%BA%E5%88%AB%EF%BC%9F.md)
[lower_bound()和upper_bound()有什么区别？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/lower_bound()%E5%92%8Cupper_bound()%E6%9C%89%E4%BB%80%E4%B9%88%E5%8C%BA%E5%88%AB%EF%BC%9F.md)
[为什么需要allocator？他在STL中有什么作用？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E4%B8%BA%E4%BB%80%E4%B9%88%E9%9C%80%E8%A6%81allocator%EF%BC%9F%E4%BB%96%E5%9C%A8STL%E4%B8%AD%E6%9C%89%E4%BB%80%E4%B9%88%E4%BD%9C%E7%94%A8%EF%BC%9F.md)
[什么是RAII原则，他在STL是怎么应用的？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E4%BB%80%E4%B9%88%E6%98%AFRAII%E5%8E%9F%E5%88%99%EF%BC%8C%E4%BB%96%E5%9C%A8STL%E6%98%AF%E6%80%8E%E4%B9%88%E5%BA%94%E7%94%A8%E7%9A%84%EF%BC%9F.md)
[STL容器是线程安全的吗？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/STL%E5%AE%B9%E5%99%A8%E6%98%AF%E7%BA%BF%E7%A8%8B%E5%AE%89%E5%85%A8%E7%9A%84%E5%90%97%EF%BC%9F.md)
[什么是泛型编程，他在STL中是怎么使用的？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E4%BB%80%E4%B9%88%E6%98%AF%E6%B3%9B%E5%9E%8B%E7%BC%96%E7%A8%8B%EF%BC%8C%E4%BB%96%E5%9C%A8STL%E4%B8%AD%E6%98%AF%E6%80%8E%E4%B9%88%E4%BD%BF%E7%94%A8%E7%9A%84%EF%BC%9F.md)
[如何选择合适的STL容器](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%A6%82%E4%BD%95%E9%80%89%E6%8B%A9%E5%90%88%E9%80%82%E7%9A%84STL%E5%AE%B9%E5%99%A8.md)
数据结构与算法
[数据结构与算法学习攻略](https://github.com/youngyangyang04/leetcode-master)
设计模式
[C++设计模式](https://github.com/youngyangyang04/DesignPattern)
[C++单例模式](https://github.com/youngyangyang04/TechCPP/blob/master/problems/C++%E5%8D%95%E4%BE%8B%E6%A8%A1%E5%BC%8F.md)
[用C++设计一个不能被继承的类](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E7%94%A8C++%E8%AE%BE%E8%AE%A1%E4%B8%80%E4%B8%AA%E4%B8%8D%E8%83%BD%E8%A2%AB%E7%BB%A7%E6%89%BF%E7%9A%84%E7%B1%BB.md)
[如何定义一个只能在堆上定义对象的类?栈上呢](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%A6%82%E4%BD%95%E5%AE%9A%E4%B9%89%E4%B8%80%E4%B8%AA%E5%8F%AA%E8%83%BD%E5%9C%A8%E5%A0%86%E4%B8%8A%E5%AE%9A%E4%B9%89%E5%AF%B9%E8%B1%A1%E7%9A%84%E7%B1%BB%E6%A0%88%E4%B8%8A%E5%91%A2.md)
[类构造和析构的顺序](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E7%B1%BB%E6%9E%84%E9%80%A0%E5%92%8C%E6%9E%90%E6%9E%84%E7%9A%84%E9%A1%BA%E5%BA%8F.md)
操作系统
[linux的内存管理机制，内存寻址方式，什么叫虚拟内存，内存调页算法，任务调度算法](https://github.com/youngyangyang04/TechCPP/blob/master/problems/linux%E7%9A%84%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86%E6%9C%BA%E5%88%B6%E5%86%85%E5%AD%98%E5%AF%BB%E5%9D%80%E6%96%B9%E5%BC%8F%E4%BB%80%E4%B9%88%E5%8F%AB%E8%99%9A%E6%8B%9F%E5%86%85%E5%AD%98%E5%86%85%E5%AD%98%E8%B0%83%E9%A1%B5%E7%AE%97%E6%B3%95%E4%BB%BB%E5%8A%A1%E8%B0%83%E5%BA%A6%E7%AE%97%E6%B3%95.md)
[锁：互斥锁，乐观锁，悲观锁](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E9%94%81%EF%BC%9A%E4%BA%92%E6%96%A5%E9%94%81%EF%BC%8C%E4%B9%90%E8%A7%82%E9%94%81%EF%BC%8C%E6%82%B2%E8%A7%82%E9%94%81.md)
[死锁必要条件及避免算法](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E6%AD%BB%E9%94%81%E5%BF%85%E8%A6%81%E6%9D%A1%E4%BB%B6%E5%8F%8A%E9%81%BF%E5%85%8D%E7%AE%97%E6%B3%95.md)
[动态链接和静态链接的区别](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%8A%A8%E6%80%81%E9%93%BE%E6%8E%A5%E5%92%8C%E9%9D%99%E6%80%81%E9%93%BE%E6%8E%A5%E7%9A%84%E5%8C%BA%E5%88%AB.md)
[常见的信号、系统如何将一个信号通知到进程](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%B8%B8%E8%A7%81%E7%9A%84%E4%BF%A1%E5%8F%B7%E3%80%81%E7%B3%BB%E7%BB%9F%E5%A6%82%E4%BD%95%E5%B0%86%E4%B8%80%E4%B8%AA%E4%BF%A1%E5%8F%B7%E9%80%9A%E7%9F%A5%E5%88%B0%E8%BF%9B%E7%A8%8B.md)
[linux系统的各类同步机制、linux系统的各类异步机制](https://github.com/youngyangyang04/TechCPP/blob/master/problems/linux%E7%B3%BB%E7%BB%9F%E7%9A%84%E5%90%84%E7%B1%BB%E5%90%8C%E6%AD%A5%E6%9C%BA%E5%88%B6%E3%80%81linux%E7%B3%BB%E7%BB%9F%E7%9A%84%E5%90%84%E7%B1%BB%E5%BC%82%E6%AD%A5%E6%9C%BA%E5%88%B6.md)
[如何实现守护进程](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%A6%82%E4%BD%95%E5%AE%9E%E7%8E%B0%E5%AE%88%E6%8A%A4%E8%BF%9B%E7%A8%8B.md)
[标准库函数和系统调用的区别](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E6%A0%87%E5%87%86%E5%BA%93%E5%87%BD%E6%95%B0%E5%92%8C%E7%B3%BB%E7%BB%9F%E8%B0%83%E7%94%A8%E7%9A%84%E5%8C%BA%E5%88%AB.md)
[协程是什么，为什么需要协程](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%8D%8F%E7%A8%8B%E6%98%AF%E4%BB%80%E4%B9%88%EF%BC%8C%E4%B8%BA%E4%BB%80%E4%B9%88%E9%9C%80%E8%A6%81%E5%8D%8F%E7%A8%8B.md)
[进程的状态转换有那些？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E8%BF%9B%E7%A8%8B%E7%9A%84%E7%8A%B6%E6%80%81%E8%BD%AC%E6%8D%A2%E6%9C%89%E9%82%A3%E4%BA%9B%EF%BC%9F.md)
[什么是进程？什么是线程？他们的区别是什么？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E4%BB%80%E4%B9%88%E6%98%AF%E8%BF%9B%E7%A8%8B%EF%BC%9F%E4%BB%80%E4%B9%88%E6%98%AF%E7%BA%BF%E7%A8%8B%EF%BC%9F%E4%BB%96%E4%BB%AC%E7%9A%84%E5%8C%BA%E5%88%AB%E6%98%AF%E4%BB%80%E4%B9%88%EF%BC%9F.md)
[进程间的通信方式有那些？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E8%BF%9B%E7%A8%8B%E9%97%B4%E7%9A%84%E9%80%9A%E4%BF%A1%E6%96%B9%E5%BC%8F%E6%9C%89%E9%82%A3%E4%BA%9B%EF%BC%9F.md)
[线程间的通信方式有那些？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E7%BA%BF%E7%A8%8B%E9%97%B4%E7%9A%84%E9%80%9A%E4%BF%A1%E6%96%B9%E5%BC%8F%E6%9C%89%E9%82%A3%E4%BA%9B%EF%BC%9F.md)
[线程，进程和协程是否有自己独立的堆区和栈区？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E7%BA%BF%E7%A8%8B%EF%BC%8C%E8%BF%9B%E7%A8%8B%E5%92%8C%E5%8D%8F%E7%A8%8B%E6%98%AF%E5%90%A6%E6%9C%89%E8%87%AA%E5%B7%B1%E7%8B%AC%E7%AB%8B%E7%9A%84%E5%A0%86%E5%8C%BA%E5%92%8C%E6%A0%88%E5%8C%BA%EF%BC%9F.md)
[什么是PCB？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E4%BB%80%E4%B9%88%E6%98%AFPCB%EF%BC%9F.md)
[分页和分段的区别是什么？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%88%86%E9%A1%B5%E5%92%8C%E5%88%86%E6%AE%B5%E7%9A%84%E5%8C%BA%E5%88%AB%E6%98%AF%E4%BB%80%E4%B9%88%EF%BC%9F.md)
[为什么有了进程还需要线程和协程？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E4%B8%BA%E4%BB%80%E4%B9%88%E6%9C%89%E4%BA%86%E8%BF%9B%E7%A8%8B%E8%BF%98%E9%9C%80%E8%A6%81%E7%BA%BF%E7%A8%8B%E5%92%8C%E5%8D%8F%E7%A8%8B%EF%BC%9F.md)
[外中断和内中断有什么区别？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%A4%96%E4%B8%AD%E6%96%AD%E5%92%8C%E5%86%85%E4%B8%AD%E6%96%AD%E6%9C%89%E4%BB%80%E4%B9%88%E5%8C%BA%E5%88%AB%EF%BC%9F.md)
[什么是僵尸进程？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E4%BB%80%E4%B9%88%E6%98%AF%E5%83%B5%E5%B0%B8%E8%BF%9B%E7%A8%8B%EF%BC%9F.md)
linux 服务器
[32位系统一个进程最多有多少堆内存](https://github.com/youngyangyang04/TechCPP/blob/master/problems/32%E4%BD%8D%E7%B3%BB%E7%BB%9F%E4%B8%80%E4%B8%AA%E8%BF%9B%E7%A8%8B%E6%9C%80%E5%A4%9A%E6%9C%89%E5%A4%9A%E5%B0%91%E5%A0%86%E5%86%85%E5%AD%98.md)
[五种I/O 模式:阻塞I/O,非阻塞 I/O,I/O 多路复用,信号驱动 I/O,异步 I/O](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E4%BA%94%E7%A7%8DIO%E6%A8%A1%E5%BC%8F.md)
[select 模型和 poll 模型，epoll模型](https://github.com/youngyangyang04/TechCPP/blob/master/problems/select%E6%A8%A1%E5%9E%8B%E5%92%8Cpoll%E6%A8%A1%E5%9E%8Bepoll%E6%A8%A1%E5%9E%8B.md)
[socket服务端的实现，select和epoll的区别(必问)](https://github.com/youngyangyang04/TechCPP/blob/master/problems/socket%E6%9C%8D%E5%8A%A1%E7%AB%AF%E7%9A%84%E5%AE%9E%E7%8E%B0%EF%BC%8Cselect%E5%92%8Cepoll%E7%9A%84%E5%8C%BA%E5%88%AB.md)
[epoll哪些触发模式，有啥区别？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/epoll%E5%93%AA%E4%BA%9B%E8%A7%A6%E5%8F%91%E6%A8%A1%E5%BC%8F%EF%BC%8C%E6%9C%89%E5%95%A5%E5%8C%BA%E5%88%AB%EF%BC%9F.md)
[用户态和内核态的区别](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E7%94%A8%E6%88%B7%E6%80%81%E5%92%8C%E5%86%85%E6%A0%B8%E6%80%81%E7%9A%84%E5%8C%BA%E5%88%AB.md)
[linux文件系统：inode，inode存储了哪些东西，目录名，文件名存在哪里](https://github.com/youngyangyang04/TechCPP/blob/master/problems/linux%E6%96%87%E4%BB%B6%E7%B3%BB%E7%BB%9F%EF%BC%9Ainode%EF%BC%8Cinode%E5%AD%98%E5%82%A8%E4%BA%86%E5%93%AA%E4%BA%9B%E4%B8%9C%E8%A5%BF%EF%BC%8C%E7%9B%AE%E5%BD%95%E5%90%8D%EF%BC%8C%E6%96%87%E4%BB%B6%E5%90%8D%E5%AD%98%E5%9C%A8%E5%93%AA%E9%87%8C.md)
[分段和分页的区别有那些？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%88%86%E6%AE%B5%E5%92%8C%E5%88%86%E9%A1%B5%E7%9A%84%E5%8C%BA%E5%88%AB%E6%9C%89%E9%82%A3%E4%BA%9B%EF%BC%9F.md)
[进程终止的方式有那些？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E8%BF%9B%E7%A8%8B%E7%BB%88%E6%AD%A2%E7%9A%84%E6%96%B9%E5%BC%8F%E6%9C%89%E9%82%A3%E4%BA%9B%EF%BC%9F.md)
[软中断和硬中断分别指的是什么](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E8%BD%AF%E4%B8%AD%E6%96%AD%E5%92%8C%E7%A1%AC%E4%B8%AD%E6%96%AD%E5%88%86%E5%88%AB%E6%8C%87%E7%9A%84%E6%98%AF%E4%BB%80%E4%B9%88.md)
[同步，异步，阻塞和非阻塞的概念](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%90%8C%E6%AD%A5%EF%BC%8C%E5%BC%82%E6%AD%A5%EF%BC%8C%E9%98%BB%E5%A1%9E%E5%92%8C%E9%9D%9E%E9%98%BB%E5%A1%9E%E7%9A%84%E6%A6%82%E5%BF%B5.md)
[如果发现自己的Linux服务器负载过高，应该怎么排查原因呢？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%A6%82%E6%9E%9C%E5%8F%91%E7%8E%B0%E8%87%AA%E5%B7%B1%E7%9A%84Linux%E6%9C%8D%E5%8A%A1%E5%99%A8%E8%B4%9F%E8%BD%BD%E8%BF%87%E9%AB%98%EF%BC%8C%E5%BA%94%E8%AF%A5%E6%80%8E%E4%B9%88%E6%8E%92%E6%9F%A5%E5%8E%9F%E5%9B%A0%E5%91%A2%EF%BC%9F.md)
[NGINX在Linux上是如何工作的？简单描述一下](https://github.com/youngyangyang04/TechCPP/blob/master/problems/NGINX%E5%9C%A8Linux%E4%B8%8A%E6%98%AF%E5%A6%82%E4%BD%95%E5%B7%A5%E4%BD%9C%E7%9A%84%EF%BC%9F%E7%AE%80%E5%8D%95%E6%8F%8F%E8%BF%B0%E4%B8%80%E4%B8%8B.md)
[Linux上有个二进制程序一直在运行，我修改代码置换重新编译把原来的二进制程序覆盖了，会怎么样？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/Linux%E4%B8%8A%E6%9C%89%E4%B8%AA%E4%BA%8C%E8%BF%9B%E5%88%B6%E7%A8%8B%E5%BA%8F%E4%B8%80%E7%9B%B4%E5%9C%A8%E8%BF%90%E8%A1%8C%EF%BC%8C%E6%88%91%E4%BF%AE%E6%94%B9%E4%BB%A3%E7%A0%81%E7%BD%AE%E6%8D%A2%E9%87%8D%E6%96%B0%E7%BC%96%E8%AF%91%E6%8A%8A%E5%8E%9F%E6%9D%A5%E7%9A%84%E4%BA%8C%E8%BF%9B%E5%88%B6%E7%A8%8B%E5%BA%8F%E8%A6%86%E7%9B%96%E4%BA%86%EF%BC%8C%E4%BC%9A%E6%80%8E%E4%B9%88%E6%A0%B7%EF%BC%9F.md)
计算机网络
[OSI七层模型分别是？各自的功能分别是什么？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/OSI%E4%B8%83%E5%B1%82%E6%A8%A1%E5%9E%8B%E5%88%86%E5%88%AB%E6%98%AF%EF%BC%9F%E5%90%84%E8%87%AA%E7%9A%84%E5%8A%9F%E8%83%BD%E5%88%86%E5%88%AB%E6%98%AF%E4%BB%80%E4%B9%88%EF%BC%9F.md)

[为什么需要三次握手，两次不行？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E4%B8%BA%E4%BB%80%E4%B9%88%E9%9C%80%E8%A6%81%E4%B8%89%E6%AC%A1%E6%8F%A1%E6%89%8B%EF%BC%8C%E4%B8%A4%E6%AC%A1%E4%B8%8D%E8%A1%8C%EF%BC%9F.md)

[TCP和UDP区别](https://github.com/youngyangyang04/TechCPP/blob/master/problems/TCP%E5%92%8CUDP%E5%8C%BA%E5%88%AB.md)

[TCP和UDP各自的有点](https://github.com/youngyangyang04/TechCPP/blob/master/problems/TCP%E5%92%8CUDP%E7%9A%84%E5%8C%BA%E5%88%AB.md)

[TCP和UDP的首部长什么样子](https://github.com/youngyangyang04/TechCPP/blob/master/problems/TCP%E5%92%8CUDP%E9%A6%96%E9%83%A8%E9%95%BF%E4%BB%80%E4%B9%88%E6%A0%B7%E5%AD%90%EF%BC%9F.md)

[TCP和UDP头部字节定义](https://github.com/youngyangyang04/TechCPP/blob/master/problems/TCP%E5%92%8CUDP%E5%A4%B4%E9%83%A8%E5%AD%97%E8%8A%82%E5%AE%9A%E4%B9%89.md)

[TCP和UDP三次握手和四次挥手状态及消息类型](https://github.com/youngyangyang04/TechCPP/blob/master/problems/TCP%E5%92%8CUDP%E4%B8%89%E6%AC%A1%E6%8F%A1%E6%89%8B%E5%92%8C%E5%9B%9B%E6%AC%A1%E6%8C%A5%E6%89%8B%E7%8A%B6%E6%80%81%E5%8F%8A%E6%B6%88%E6%81%AF%E7%B1%BB%E5%9E%8B.md)

[time_wait，close_wait状态产生原因，keepalive](https://github.com/youngyangyang04/TechCPP/blob/master/problems/time_wait%EF%BC%8Cclose_wait%E7%8A%B6%E6%80%81%E4%BA%A7%E7%94%9F%E5%8E%9F%E5%9B%A0%EF%BC%8Ckeepalive.md)

[什么是滑动窗口，超时重传](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E4%BB%80%E4%B9%88%E6%98%AF%E6%BB%91%E5%8A%A8%E7%AA%97%E5%8F%A3%EF%BC%8C%E8%B6%85%E6%97%B6%E9%87%8D%E4%BC%A0.md)

[列举你所知道的tcp选项](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%88%97%E4%B8%BE%E4%BD%A0%E6%89%80%E7%9F%A5%E9%81%93%E7%9A%84tcp%E9%80%89%E9%A1%B9.md)

[socket什么情况下可读？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/socket%E4%BB%80%E4%B9%88%E6%83%85%E5%86%B5%E4%B8%8B%E5%8F%AF%E8%AF%BB%EF%BC%9F.md)

[connect会阻塞，怎么解决?(必考必问)](https://github.com/youngyangyang04/TechCPP/blob/master/problems/connect%E4%BC%9A%E9%98%BB%E5%A1%9E%E6%80%8E%E4%B9%88%E8%A7%A3%E5%86%B3.md)

[keepalive是什么？如何使用？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/keepalive%E6%98%AF%E4%BB%80%E4%B9%88%EF%BC%9F%E5%A6%82%E4%BD%95%E4%BD%BF%E7%94%A8%EF%BC%9F.md)

[长连接和短连接](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E9%95%BF%E8%BF%9E%E6%8E%A5%E5%92%8C%E7%9F%AD%E8%BF%9E%E6%8E%A5.md)

[UDP中使用connect的好处](https://github.com/youngyangyang04/TechCPP/blob/master/problems/UDP%E4%B8%AD%E4%BD%BF%E7%94%A8connect%E7%9A%84%E5%A5%BD%E5%A4%84.md)

[DNS和HTTP协议，HTTP请求方式](https://github.com/youngyangyang04/TechCPP/blob/master/problems/DNS%E5%92%8CHTTP%E5%8D%8F%E8%AE%AE%EF%BC%8CHTTP%E8%AF%B7%E6%B1%82%E6%96%B9%E5%BC%8F.md)

[SYN队列和ACCEPT队列](https://github.com/youngyangyang04/TechCPP/blob/master/problems/SYN%E9%98%9F%E5%88%97%E5%92%8CAccept%E9%98%9F%E5%88%97.md)

[SYN队列溢出了怎么办](https://github.com/youngyangyang04/TechCPP/blob/master/problems/SYN%E9%98%9F%E5%88%97%E6%BA%A2%E5%87%BA%E4%BA%86%E6%80%8E%E4%B9%88%E5%8A%9E.md)

[什么是数字签名？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E4%BB%80%E4%B9%88%E6%98%AF%E6%95%B0%E5%AD%97%E7%AD%BE%E5%90%8D%EF%BC%9F.md)

[什么是数字证书？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E4%BB%80%E4%B9%88%E6%98%AF%E6%95%B0%E5%AD%97%E8%AF%81%E4%B9%A6%EF%BC%9F.md)

[什么是大小端，他在计算机网络中都有什么应用呢](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E4%BB%80%E4%B9%88%E6%98%AF%E5%A4%A7%E5%B0%8F%E7%AB%AF%EF%BC%8C%E4%BB%96%E5%9C%A8%E8%AE%A1%E7%AE%97%E6%9C%BA%E7%BD%91%E7%BB%9C%E4%B8%AD%E9%83%BD%E6%9C%89%E4%BB%80%E4%B9%88%E5%BA%94%E7%94%A8%E5%91%A2.md)

[局域网的IP分配策略是什么？它是怎么实现的？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%B1%80%E5%9F%9F%E7%BD%91%E7%9A%84IP%E5%88%86%E9%85%8D%E7%AD%96%E7%95%A5%E6%98%AF%E4%BB%80%E4%B9%88%EF%BC%9F%E5%AE%83%E6%98%AF%E6%80%8E%E4%B9%88%E5%AE%9E%E7%8E%B0%E7%9A%84%EF%BC%9F.md)

[在TCP三次握手的时候，如果网络情况非常好且百分百不会发生拥塞，不会重传，不会有历史链接问题，那么三次握手可以改为两次吗？](https://github.com/youngyangyang04/TechCPP/blob/master/problems/%E5%9C%A8TCP%E4%B8%89%E6%AC%A1%E6%8F%A1%E6%89%8B%E7%9A%84%E6%97%B6%E5%80%99%EF%BC%8C%E5%A6%82%E6%9E%9C%E7%BD%91%E7%BB%9C%E6%83%85%E5%86%B5%E9%9D%9E%E5%B8%B8%E5%A5%BD%E4%B8%94%E7%99%BE%E5%88%86%E7%99%BE%E4%B8%8D%E4%BC%9A%E5%8F%91%E7%94%9F%E6%8B%A5%E5%A1%9E%EF%BC%8C%E4%B8%8D%E4%BC%9A%E9%87%8D%E4%BC%A0%EF%BC%8C%E4%B8%8D%E4%BC%9A%E6%9C%89%E5%8E%86%E5%8F%B2%E9%93%BE%E6%8E%A5%E9%97%AE%E9%A2%98%EF%BC%8C%E9%82%A3%E4%B9%88%E4%B8%89%E6%AC%A1%E6%8F%A1%E6%89%8B%E5%8F%AF%E4%BB%A5%E6%94%B9%E4%B8%BA%E4%B8%A4%E6%AC%A1%E5%90%97%EF%BC%9F.md)

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[CPP] 知识点QA #51

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[CPP] 知识点QA #51

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