C+程序编程实例大全#includeint main() std:couthello world!;#include iostreamusing namespace std;void main() int *p; p=new int; *p=5; /*p=new int(5);*/ cout*p; delete p; #include iostreamusing namespace std;void main() char name10; coutname; coutthe name is nameendl; #include iostreamusing namespace std;void main() char name10; int age; coutname; coutage; coutthe name is nameendl; coutthe age is agen; student wang; wang.no=n; cinwang.math; coutwang.no wang.mathendl; #include iostreamusing namespace std;void main() int *p; int n; coutn; if(p=new intn)=0) coutcant allocate more memory, terminatingendl; exit(1); for(int i=0;in;i+) pi=i*2; coutNow output the array: endl; for(i=0;in;i+) coutpi endl; delete p; #include iostreamusing namespace std;void main() int *p; int n; coutn; if(p=new intn)=0) coutcant allocate more memory, terminatingendl; exit(1); for(int i=0;in;i+) pi=i*i+1; coutNow output the array: endl; for(i=0;in;i+) coutpi ; coutendl; delete p; /* Note:Your choice is C IDE */#include using namespace std;float a=2.4;void main() int a=8; coutaendl; cout:aendl; /* Note:Your choice is C IDE */#include void main() int num=50; int &ref=num; ref+=10; coutnum=numendl; coutref=refendl; num+=40; coutnum=numendl; coutrefrefendl; /* Note:Your choice is C IDE */#include void main() int num; int &ref=num; num=5; coutnum=numendl; coutref=refendl; cout&num=&numendl; cout&ref=&refendl; /* Note:Your choice is C IDE */#include using namespace std;void swap(int &x,int &y);void main() int x=5,y=6; coutbefore swap, x:x ,y:yendl; swap(x,y); coutafter swap, x:x ,y:y;void swap(int &rx,int &ry) int t=rx; rx=ry; ry=t;#include/using namespace std;void main()/* double radius; coutradius; double result=radius*radius*3.14*4; coutThe result is (double)resultn;*/double radius;std:coutradius;std:coutThe result is radius*radius*3.14*4n;/* Note:Your choice is C IDE */#include using namespace std;int array64=60,80,90,75,75,85,65,77,80,88,90,98,89,100,78,81,62,68,69,75,85,85,77,91;int &level(int grade,int size,int &tA,int &tB );void main() int typeA=0,typeB=0; int student=6; int gradesize=4; for(int i=0;istudent;i+) level(arrayi,gradesize,typeA,typeB)+; coutnumber of type A is typeAendl; coutnumber of type B is typeBendl; int &level(int grade,int size,int &tA,int &tB) int sum=0; for(int i=0;i=80) return tA; else return tB;/* Note:Your choice is C IDE */#include using namespace std;float &fn2(float r) float t; t=3.14*r*r; return t;void main() fn2(5.0)=12.4; coutfn2(5.0)endl; /* Note:Your choice is C IDE */#include #include using namespace std;void main() string s,t; coutplease input a zifuchuan:s; t=I like programming!; coutzifuchuan output:endlsendltendl; couts.append( OK!)endl;/* Note:Your choice is C IDE */#include using namespace std;inline double circumference(double radius);void main() double r=3.0,s; s=circumference(r); coutthe circumference is s.endl; inline double circumference(double radius) return 2*3.1415926*radius;/* Note:Your choice is C IDE */#include int add(int x,int y) int sum; sum=x+y; return sum;int add(int x,int y,int z) int sum; sum=x+