elseif(b>c)cout<
elsecout<}
intmain()
{
max(2,5);
max(7,5,3);
return0;
}
4、#include
usingnamespacestd;
voidswap1(inta,intb)
{
inttemp;
temp=a;
a=b;
b=temp;
}
voidswap2(int*a,int*b)
{
inttemp;
temp=*a;
*a=*b;
*b=temp;
}
voidswap3(int&a,int&b)
{
inttemp;
temp=a;
a=b;
b=temp;
}
intmain()
{
intx,y;
x=5;y=7;
swap1(x,y);
cout<<"x="<swap2(&x,&y);
cout<<"x="<swap3(x,y);
cout<<"x="<}
5、#include
#include
usingnamespacestd;
classstudent
{
private:
intnum;
stringname;
intage;
charsex;
public:
voidset()
{
cout<<"请输入:
学号,姓名,年龄,性别(form)"<>num>>name>>age>>sex;
}
voiddisplay()
{
cout«"学号:
"<coutvv"姓名:
"<cout«"年龄:
"vvagevvendl;
coutvv"性别:
"vvsexvvendl;
}
};
intmain()
{
students;
s.set();
s.display();
return0;
}
6、#includeviostream>
#includevstring>
usingnamespacestd;
classstudent
{
private:
intnum;
stringname;
intage;
charsex;
public:
/*voidset()
{
coutvv"请输入:
学号,姓名,年龄,性别(form)"<>num>>name>>age>>sex;
*/
student(intnum,stringname,inta,ints)
{
coutvv"调用构造函数num="vnum=num;
this->name=name;
age=a;
sex=s;
}天猫优惠券,我就要券
voiddisplay()
{
cout«"学号:
"vvnum<coutvv"姓名:
"vvname<cout«"年龄:
"vvagevvendl;
coutvv"性别:
"vvsexvvendl;
}
~student()
{
coutvv"析构函数学号:
"<}
};
intmain()
{
students(1001,张三",25,'f),s1(1002,"李四",24,'m');
//s.set();
s.display();
s1.display();
return0;
}
7、#includeviostream>
#includevstring>
usingnamespacestd;
classstudent
{
private:
intnum;
stringname;
intage;
charsex;
public:
/*voidset()
coutvv"请输入:
学号,姓名,年龄,性别(form)"vvendl;cin>>num>>name>>age>>sex;
*/
student()
{
cout«"调用构造函数num="v<0num=0;
name="";
age=18;
sex='f';
}
student(intnum,stringname,inta,ints)
{
coutvv"调用构造函数num="vnum=num;
this->name=name;
age=a;
sex=s;
}
voiddisplay()
{
cout«"学号:
"vvnum<coutvv"姓名:
"vvname<cout«"年龄:
"vvagevvendl;
coutvv"性别:
"vvsexvvendl;
}
~student()
{
coutvv"析构函数学号:
"<}
};
intmain()
{
students(1001,张三",25,'f),s1(1002,"李四",24,'m'),s2;//s.set();
s.display();
coutvvendl;
s1.display();
coutvvendl;
s2.display();
coutvvendl;
return0;
}
usingnamespacestd;天猫优惠券,我就要