#include <iostream>
#include <string>
#include <sstream>
using namespace std;
template <class T>
string MyConvertToString(T value) {
stringstream ss;
ss << value;
return ss.str();
}
//顶层的抽象类,规范了击鼓传花的组合能力
class Handle {
public:
void setSuccessor(Handle *pSuccessor){
this->m_pHandle = pSuccessor;
}
virtual string handleFeeRequest(double fee) = 0;
protected:
Handle* m_pHandle;
};
class PrjManager :public Handle {
public:
string handleFeeRequest(double fee) {
string strTemp = "";
if (fee < 500) {
strTemp = "项目经理同意" + MyConvertToString(fee) + "费用";
return strTemp;
}
else {
if (this->m_pHandle != nullptr) {
return m_pHandle->handleFeeRequest(fee);
}
}
return strTemp;
}
};
class DepManager :public Handle {
public:
string handleFeeRequest(double fee) {
string strTemp = "";
if (fee>=500 &&fee < 1000) {
strTemp = "部门经理同意" + MyConvertToString(fee) + "费用";
return strTemp;
}
else {
if (this->m_pHandle != nullptr) {
return m_pHandle->handleFeeRequest(fee);
}
}
return strTemp;
}
};
class CEOManager :public Handle {
public:
string handleFeeRequest(double fee) {
string strTemp = "";
if (fee >= 1000) {
strTemp = "CEO经理同意" + MyConvertToString(fee) + "费用";
return strTemp;
}
else {
if (this->m_pHandle != nullptr) {
return m_pHandle->handleFeeRequest(fee);
}
}
return strTemp;
}
};
int main(void) {
//先要组装我们的责任链
Handle* pH1 = new PrjManager;
Handle* pH2 = new DepManager;
Handle* pH3 = new CEOManager;
pH1->setSuccessor(pH2);
pH2->setSuccessor(pH3);
cout << pH1->handleFeeRequest(128) << endl;
cout << pH1->handleFeeRequest(512) << endl;
cout << pH1->handleFeeRequest(1024) << endl;
system("pause");
return 0;
}
代码示例
标签：handleFeeRequest,fee,return,string,模式,责任,strTemp,pHandle From： https://www.cnblogs.com/zeliangzhang/p/17921499.html