编写函数模板 void change（T &i，T &j),能够实现整型数据、实型和字符串的交换，并编写测试

给出下面程序的输出结果

include<iostream>

using namespace std;

int min(int a,int b)

{

if(a<b)return a;

else return b;

return 0;

}

void main()

{

cout<<min(1,min(2,3))<<endl;

}

给出下面程序的输出结果。

include<iostream>

using namespace std;

void main()

{

int num=0,i=8;

do

{

i--;

num++;

}while(--i);

cout<<num<<endl;

}

写出模板函数实现数值型数组元素值按从小到大排序的程序。

include<iostream>

using namespace std;

template <class T>

void sort(T b[],int n)

{

T temp;

int i,j;

T *a=new T[n];

for (i=0;i<n;i++){a[i]=b[i];}

for(i=0;i<n-1;i++)

{

for(j=i+1;j<n;j++)

{ if(a[i]>a[j])

{temp=a[i];

a[i]=a[j];

a[j]=temp;

}

}

}

for(i=0;i<n;i++){cout<<a[i]<<" ";}

cout<<endl;

delete []a;

}

void main()

{

int i,n=6;

int a[]={5,1,9,10,3,8};

____________;

for(i=0;i<n;i++)

{cout<<a[i]<<" ";}

cout<<endl;

}

include<iostream>

using namespace std;

int fun1(int);

void main()

{

int i=12;

___________;

___________;

cout<<"fun1:"<<(*fp)(i)<<endl;

}

int fun1(int k)

{

k=k*2+1;

return k;

}

。

include<iostream>

using namespace std;

void copystr(_______________)

{

int n=0;

while(n<m-1)

{

n++;

p1++;

}

while(*p1!=&39;\0&39;)

{

*p2=*p1;

p1++;

p2++;

}

*p2=&39;\0&39;;

}

void main()

{

int m;

char str1[20],str2[20];

cout<<"输入字符串1：";

______________;

cout<<"从第m个字符串开始复制，请输入m：";

cin>>m;

if(strlen(str1)<m)

cout<<"输入超过str1的长度"<<endl;

else

{

copystr(str1,str2,m);

cout<<"复制的字符串是："<<str2<<endl;

}

}

运行结果如下：

AAAbBB

BB

CCC

程序如下：

include<iostream.h>

void main()

{

char ch[3][4]={"AAA","BB","CCC"},(*q)[4]=ch,*p;

int i;

___________

*p=&39;b&39;;

___________

for(i=0;i<3;i++)

{

cout<<q[i]<<endl;

}

}

计算1~20之间偶数之和。

include<iostream.h>

void main()

{

int a,i;

a=0;

for(i=0;i<21;________)

{

_______________

}

cout<<"偶数之和为："<<a<<endl;

}

include<iostream.h>

void main()

{

int n;

cin>>n;

cin.get();

char s[n];

cin.getline(s,n);

cout<<s<<endl;

delete s;

}

include<iostream>

include<string>

using namespace std;

template <class T>

T Max(T a,T b)

{return a>b? a:b;}

T Mix(T a,T b)

{return a>b? b:a;}

void main()

{

cout<<"Max(3,5)"<<Max<double>(3,5)<<endl;

cout<<"Mix(3,5)"<<Mix<int>(3,5)<<endl;

}

include<iostream>

include<string>

using namespace std;

class MyClass

{

public:

MyClass(int i=0){member=i;}

void SetMember(const string m){member="big"+m;m=member;}

string GetMember(){return member;}

void print()const{cout<<"Stu:"<<member<<endl;}

private:

string member;

};

void main()

{

MyClass obj1,*obj2;

string i="wang lin";

obj2=&obj1;

obj2->SetMember(i);

obj1.print();

}