warning: deprecated conversion from string constant to 'char*
#include<iostream>
using namespace std;
class Student
{
private:
int age;
char*name;
public:
Student(int m, char *n)
{
age=m;name=n;
}
Student()
{
age=;name="unnamed";
}
~ Student(){}
void SetMember ( int m,char *n )
{
age=m;name=n;
}
int Getage(){return age;}
char *Getname(){return name;}
};
int main()
{
Student stu[]={Student(,"wang"),Student(),Student()} ; stu[].SetMember(,"zhang"); cout<<stu[].Getage()<<","<<stu[].Getname()<<endl;
cout<<stu[].Getage()<<","<<stu[].Getname()<<endl;
cout<<stu[].Getage()<<","<<stu[].Getname()<<endl;
return ;
}
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|
#include<iostream>using namespace std;
class Student {
private:
int age;
const char*name;
public:
Student(int m, const char *n) {
age=m;
name=n;
}
Student() {
age=0;
name="unnamed";
}
~ Student() {}
void SetMember ( int m,const char *n ) {
age=m;
name=n;
}
int Getage() {
return age;
}
const char *Getname() {
return name;
}
};int main() {
Student stu[3]= {Student(13,"wang"),Student(),Student()} ;
stu[2].SetMember(12,"zhang");
cout<<stu[0].Getage()<<","<<stu[0].Getname()<<endl;
cout<<stu[1].Getage()<<","<<stu[1].Getname()<<endl;
cout<<stu[2].Getage()<<","<<stu[2].Getname()<<endl;
return 0;
} |
看你的实现，传给Student类的字符串都是不可变的，都加上const就好了；否则你就要复制一份并且自己管理那块内存了。