#include <iostream>
#include <string>
using namespace std ;
class Preson
{
public :
    Person ( char * Name , int  Age ) ;
    ~Person () ;
    void setAge ( int x ) { age = x ; }
    void print () ;
private :
    char  * name ;
    int age ;

} ;
Person :: Person ( char * Name , int Age )
{
    name = new char [ strlen ( Name ) + 1 ] ;
    strcpy ( name , Name ) ;
    age = Age ;
    cout << " Constructor called ! " << endl ;

}
Person :: ~Person ()
{
    cout << " Destructor called ! " << endl ;
    delete name ;

}

void Person :: print () { cout << " name : " <<name << " age : " << age << endl ; }
int main ()
{
    Person p1 ( "张三 " , 21 ) ;
    Person p2 = p1 ;
    p1.setAge ( 1 ) ;
    p2.setAge ( 2 ) ;
    p1.print () ;
    p2.print () ;
    return 0 ;
}错在了那里？

class Preson？？
class Person？？

把第4行的Preson 改成Person，编译通过，没有问题

不会这种问题自己都看不出来吧……

我太大意了