与C语言不同的是两种函数调用方法不同的是pf(),(*pf)(),类成员函数指针只能用(*pf)()调用类成员函数指针的调用方法只能靠对象调用,即使在类内也必须用this->*去调用,静态函数除外class WOLF;typedef void(WOLF::* Pf)();//指向类成员函数的类函数指针class WOLF{public: WOLF() { pGroup = &
void f(int i){ std::cout<<i<<std::endl;}typedef void(*pF)(int);pF signlll(int i, void(*p)(int)){ std::cout << i << std::endl; return f;}void (*signll2(int i, void(*p)(
#include <stdio.h> #include <windows.h> #include <process.h> unsigned WINAPI Read(void* arg);unsigned WINAPI Accu(void* arg);static HANDLE semOne;static HANDLE semT
内存池减少多次的内存分配导致过多的io操作影响计算机性能,产生内存碎片造成系统的程序的不稳定
#include<iostream>class hint {char *mem[4];public:hint(int i = 0);~hint();hint(hint& val);void operator=(int val);friend std::istream& operator >> (std::istream& os,hint& v
//int val = 654;//char str[12]{};//int len{ 11 };//bool bfs = val < 0;//if (bfs) val = -1 * val;//do {// str[--len] = val % 10 + 48;//} while (val = val / 10);//if (bfs)str[--len] = '-';//std
模板函数简单排序
int main(){string str{ "id=user;pass=632105;role=好英俊;" };string strIn;int lfind, rfind;while (true){ cout << "请输入你要查阅的属性" << endl; cin >> strIn;//输入要输入的属性 lfind = str.
//发送端基于传统C API开发#include <iostream>#include <WinSock2.h>using namespace std;#define mian main#pragma comment(lib,"ws2_32.lib")enum { PORT = 0x3512};//与接收端绑定的端口一致int main(){WSADATA wa;WSASt
https://www.bilibili.com/video/BV1Kt411775b?from=search&seid=4148955247185289345
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