shared_ptr智能指针

#include <iostream>#include <memory>#include <string>/*shared_ptr类  智能指针也是模板*/void f(std::shared_ptr<std::string> p){std::string* plocal = p.get();//智能指针的get()函数,std::cout << *plocal << std::endl;//打印普通指针 所指的内容return;}int main(int argc, char const *argv[]){std::shared_ptr<std::string> p1(new std::string ("hello world"));//显式f(p1);std::shared_ptr<int> p2 = std::make_shared<int>(52);//最安全的分配和使用std::shared_ptr<std::string> p3 = std::make_shared<std::string>(10,'a');std::cout << "p2: " << *p2 << "p3 : " << *p3 << std::endl;auto a = std::make_shared<int>(42);std::cout << *a << std::endl;return 0;}

编译时，记得加上 -std=c++11选项!

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知识无价！