单例模式案例-打印机案例.zip

#define _CRT_SECURE_NO_WARNINGS #include<iostream> #include <string> using namespace std; class Printer { private: Printer(){ m_Count = 0; }; Printer(const Printer& p); public: static Printer* getInstance() { return singlePrinter; } void printText(string text) { cout << text << endl; m_Count++; cout << "打印机使用了次数为： " << m_Count << endl; } private: static Printer* singlePrinter; int m_Count; }; Printer* Printer::singlePrinter = new Printer; void test01() { //拿到打印机 Printer * printer = Printer::getInstance(); printer->printText("离职报告"); printer->printText("入职报告"); printer->printText("加薪申请"); printer->printText("升级申请"); printer->printText("退休申请"); } int main(){ test01(); system("pause"); return EXIT_SUCCESS; }