Tyeat的博客

https://www.cnblogs.com/cyyz-le/p/11514477.html

https://blog.youkuaiyun.com/rl529014/article/details/51614471

Wav文件直接反映了一个声音在每个时刻的大小值，比如说以下一段波形：我们按每人0.1秒取一点，得到的wav文件数值就是0,1,1,-1,0,1。因此，假如我们能把许多Wav文件的数据直接相加，你听到的就是所有的声音，这就是混音器的原理。Step 1, Get the Raw data of the two files, (Example, of the sample 8bit and 8Kh, means one sample is of 8bit)Step 2 Let the two audio s

c++中有些重载运算符为什么要返回引用，单单为了避免析构再构造吗？ 不是。「有些」重载运算符要返回的引用，是为了返回它本身。如class TestClass {private:int number;public:TestClass& operator+=(const TestClass& rhs) {number += rhs.number;return *th...

函数名： system功 能： 发出一个DOS命令用 法： int system(char *command);system函数已经被收录在标准c库中，可以直接调用。例如：#include<stdio.h>#include<stdlib.h>int main(){printf(“About to spawn and run a DOS command\n”...

为什么要引入缓冲区比如我们从磁盘里取信息，我们先把读出的数据放在缓冲区，计算机再直接从缓冲区中取数据，等缓冲区的数据取完后再去磁盘中读取，这样就可以减少磁盘的读写次数，再加上计算机对缓冲区的操作大大快于对磁盘的操作，故应用缓冲区可大大提高计算机的运行速度。又比如，我们使用打印机打印文档，由于打印机的打印速度相对较慢，我们先把文档输出到打印机相应的缓冲区，打印机再自行逐步打印，这时我们的CPU可...

1-遍历算法.cpp#include <iostream>#include <vector>#include <algorithm>using namespace std;void show(int x){ cout << x << endl;}class print{public: void operato...

1-map的使用.cpp#include <iostream>#include <map>using namespace std;int main(){ map<int, string> m; //key是int类型 value是string类型 m.insert(pair<int, string>(3, "aa"));...

1-set的使用.cpp#include <iostream>#include <set>using namespace std;class Student{private: int id; string name;public: Student(int i, string n); void show()const; bool operator...

1-优先队列.cpp#include <iostream>#include <queue>#include <time.h>#include <stdlib.h>using namespace std;int main(){ //priority_queue<int> p; //priority_queue<i...

1-栈.cpp#include <iostream>#include <stack>#include <stdlib.h>#include <time.h>using namespace std;int main(){ stack<int> s; srand(time(NULL)); int num; for ...

1-list.cpp#include <iostream>#include <list>#include <string.h>using namespace std;class Student{private: int id; char name[32];public: Student(){} Student(int i, const...

1-vector.cpp#include <iostream>#include <vector>using namespace std;int main(){ int data[10] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; vector<int> v1; //创建数组对象（模板类） 无参构造函数 v...

1-string的构造.cpp#include <iostream>#include <string>using namespace std;int main(){ string s1; //无参构造函数 string s2("helloworld"); //有参构造函数 string s3...

1-标准输入流.cpp#include <iostream>using namespace std;int main(){ char ch; char buf[32] = {0}; /*cin >> ch; cout << ch << endl; ch = cin.get(); cout << ch <&...

1-static_cast.cpp#include <iostream>using namespace std;class Parent{};class Child : public Parent{};int main(){ int a = 1; char ch = 'x'; a = static_cast<int>(ch); //用...

1-异常基本语法.cpp#include <iostream>using namespace std;int Div(int x, int y){ if (0 == y) { //return -1; //throw 0; //抛出异常 throw 'a'; } return x / y;}int main(){ int a, ...

1-类模板.cpp#include <iostream>using namespace std;template <typename T, typename U>class Test{private: T a; U b;public: Test(T a, U b) { this->a = a; this->b = b; } ...

1-函数模板的概念.cpp#include <iostream>using namespace std;/*int add(int x, int y){ return x + y;}double add(double x, double y){ return x + y;}*/template <typename T> //声明虚拟类型...

1-逻辑运算符.cpp#include <iostream>using namespace std;int f1(){ cout << "this is f1" << endl; return 0;}int f2(){ cout << "this is f2" << endl; return 1;}cla...

1-运算符重载概念.cpp#include <iostream>using namespace std;class Complex{ //friend Complex operator+(const Complex &c1, const Complex &c2);private: int a; //实部 int b; //虚部publi...

1-动态类型识别.cpp#include <iostream>using namespace std;class Parent{private: int a;};class Child : public Parent{public: int array[102400];};void f(Parent *p){ Child *c = (Child *...

1-问题引出.cpp#include <iostream>using namespace std;class Parent{public: void show() { cout << "this is parent" << endl; }};class Child : public Parent{public: void s...

1-多继承的概念.cpp#include <iostream>using namespace std;class Airplane {protected: int high;public: Airplane() { cout << "飞机的构造函数" << endl; high = 100; } void show() { ...

1-继承的语法.cpp#include <iostream>#include <cstring>using namespace std;class Person //父类或者基类{//private:protected: //保护权限：类的内部可以访问，派生类内部可以访问，类的外部不能访问 char name[32]; int age;pu...

1-static.cpp#include <iostream>using namespace std;class Student{public: static int count; //静态成员变量 所有对象共享同一个静态成员变量private: int id;public: Student() { count++; id = count; }...

1-malloc.cpp#include <iostream>#include <stdlib.h>using namespace std;class Test{public: Test() { cout << "Test构造函数" << endl; } ~Test() { cout << "Test析...

1-构造函数.cpp#include <iostream>#include <cstdlib>using namespace std;class Array{private: int *data; //数组的起始地址 int size; //数组的容量public: Array(); //无参构造函数 函数名和类名一样 没有返回...