#06 单例模式_打印机案例
#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <string>
using namespace std;
class Printer{
private:
Printer(){
mCnt = 0;
}
public:
static Printer* getInstance(){
return pPrinter;
}
//提供打印接口
void print(string content){
cout << "打印内容为:" << content << endl;
mCnt++;
}
int getCnt(){
return this->mCnt;
}
private:
static Printer* pPrinter;
int mCnt; //统计打印次数
};
Printer* Printer::pPrinter = new Printer;
void test01(){
Printer* printer = Printer::getInstance();
printer->print("hello world1!");
printer->print("hello world2!");
printer->print("hello world3!");
cout << "打印机打印次数:" << printer->getCnt() << endl;
}
int main(void){
test01();
return 0;
}
