指向函数的指针

//指向函数的指针
void welcomeEn(string name)
{
cout<<"hello "<<name<<endl;
}
void welcomeCh(string name)
{
cout<<"你好 "<<name<<endl;
}
//argc:参数个数：包含程序名，argv：参数列表
int main(int argc,char **argv)
{
typedef void (*pf)(string name);
string name;
cin>>name;
pf pf1=&welcomeEn;//与pf=welcomeEn相同，等价
pf1(name);
pf1=&welcomeCh;
pf1(name);
}