c++primerplus中文版第六版源代码.doc

C++ primer plus 中文版 第六版 源代码
第二章到第四章，后续继续更新………

第二章

1：#include<iostream>
void main()
{
using namespace std;
int carrots;
carrots=25;
cout<<"I have ";
cout<<carrots;
cout<<"carrots.";
cout<<endl;
carrots=carrots-1;
cout<<"Crunch,crunch.Now I have "<<carrots<<" carrots"<<endl;

}

2：#include<iostream>
int stonetolb(int);
int main()
{
using namespace std;
int stone;
cout<<"Enter the weight in stone: ";
cin>>stone;
int pounds=stonetolb(stone);
cout<<stone<<" stone= ";
cout<<pounds<<" pounds."<<endl;
return 0;
}
int stonetolb(int sts)
{
return 14*sts;
}

3：#include<iostream>
void main()
{
using namespace std;

int carrots;
carrots=25;
cout<<"How many carrots do you have?"<<endl;
cin>>carrots;
cout<<"Here are two more.";
carrots=carrots+2;
cout<<"Now you have "<<carrots<<" carrots."<<endl;
//下两行专门测试cin.get（）
cin.get();
cin.get();

}

4：#include<iostream>
using namespace std;
void main()
{
cout<<"Come up and C++ me some time.";
cout<<endl;
cout<<"You won't regret it!"<<endl;
}

5#include<iostream>
void simon(int);
int main()
{
using namespace std;
simon(3);
cout<<"Pick an integer: ";
int count;
cin>>count;
simon(count);
cout<<"Done !"<<endl;
return 0;
}
void simon(int n)
{
using namespace std;
cout<<"Simon says touch your toes "<<n<<" times."<<endl;
}

6：#include<iostream>
#include<cmath>
void main()
{
using namespace std;
double area;
cout<<"Enter the floor arae,in square feet,of your home: ";
cin>>area;
double side;
side=sqrt(area);
cout<<"That's the equivalent of a square "<<side
<<" feet to the side."<<endl;
cout<<"How fascinating!"<<endl;

}

第三章
1：#include<iostream>
#include<climits>
using namespace std;
int main()
{
int n_int=INT_MAX;
short n_short=SHRT_MAX;
long n_long=LONG_MAX;
cout<<"int is "<<sizeof(int)<<" bytes."<<endl;
cout<<"short is"<<sizeof n_short<<" bytes."<<endl;
cout<<"long is"<<sizeof n_long<<" bytes."<<endl<<endl;

cout<<"Maximum values :"<<endl;
cout<<"int :"<<n_int<<endl;
cout<<"short :"<<n_short<<endl;
cout<<"long :"<<n_long<<endl;

cout<<"Minimum int value = "<<INT_MIN<<endl;
cout<<"Bits per byts = "<<CHAR_BIT<<endl;
return 0;
}

2：#include<iostream>
#include<climits>
#define ZERO 0
using namespace std;
int main()
{
short sam=SHRT_MAX;
unsigned short sue=sam;
cout<<"sam has "<<sam<<" dollars and sue has "<<sue;
cout<<" dollars deposited."<<endl
<<"Add $1 to each account."<<endl<<"Now ";
sam=sam+1;
sue=sue+1;
cout<<"Sam has "<<sam<<" dollars and sue has "<<sue;
cout<<" dollars deposited.\npoor sam!"<<endl;
sam=ZERO;
sue=ZERO;
cout<<"sam has "<<sam<<" dollars and sue has "<<sue;
cout<<" dollars deposited."<<endl;
cout<<"Take $1 from each account."<<endl<<"Now ";
sam=sam-1;
sue=sue-1;
cout<<"sam has "<<sam<<" dolars and sue has "<<sue;
cout<<" dollars deposited."<<endl<<"Lucky sue!"<<endl;
return 0;
}

3：#include<iostream>
using namespace std;
void main()
{
int chest=42;
int waist=0x42;
int inseam=042;

cout<<"Monsieur cuts a striking figure!\n";
cout<<"chest = "<<chest<<" (42 in decimal)\n";
cout<<"waist = "<<waist<<" (0x42 in hex)\n";
cout<<"inseam ="<<inseam<<" (042 in octal)\n";

}

4：#include<iostream>
using namespace std;
void main()
{
int chest=42;
int waist=42;
int inseam=42;
cout<<"Monsieur cuts a striking figure!\n";
cout<<"chest = "<<chest<<" (decimal for 42)"<<endl;
cout<<hex;
cout<<"waist = "<<waist<<" (hexadecimal for 42)"<<endl;
cout<<oct;
cout<<"inseam ="<<inseam<<" (octal for 42)\n"<<endl;

}

5：#include<iostream>
using namespace std;
void main()
{
cout<<"\aoperation \"HyperHype\" is now activated!\n";
cout<<"Enter your agent code:__________\b\b\b\b\b\b\b\b";
long code;
cin>>code;
cout<<"\aYou entered "<<code<<" ...\n";
cout<<"\acode verified !proceed with plan z3!\n";
}

6：#include<iostream>
using namespace std;
void main()
{
char ch;
cout<<"Enter a character:"<<endl;
cin>>ch;
cout<<"Hola! ";
cout<<"Thank you for the "<<ch<<" character."<<endl;
}

7：#include<iostream>
using namespace std;
void main()
{
char ch='M';
int i=ch;
cout<<"The ASCII code for "<<ch<<" is "<<i<<endl;

cout<<"Add one to the character code:"<<endl;
ch=ch+1;
i=ch;
cout<<"The ASCII code for "<<ch<<" is "<<i<<endl;

cout<<"Displaying char ch using cout.put(ch): ";
cout.put(ch);

cout.put('!');
cout<<endl<<"Done"<<endl;

}

8：#include<iostream>
using namespace std;
void main()
{
cout.setf(ios_base::fixed,ios_base::floatfield);//控制cout显示的形式
float tub=10.0/3.0;
double mint=10.0/3.0;
const float million=1.0e6;

cout<<"tub = "<<tub;
cout<<", a million tubs = "<<million*tub;
cout<<",\nand ten million tubs = ";
cout<<10*million*tub<<endl;

cout<<"mint = "<<mint<<" and a million mints = ";
cout<<million*mint<<endl;
}

9：#include<iostream>
using namespace std;
void main()
{
float a=2.34e+22f;
float b=a+1.0f;
cout<<"a= "<<a<<endl;
cout<<"b-a= "<<b-a<<endl;
}

10：#include<iostream>
using namespace std;
void main()
{
double hats,heads;//或者是float
cout.setf(ios_base::fixed,ios_base::floatfield);
cout<<"Enter a number: ";
cin>>hats;
cout<<"Enter another number: ";
cin>>heads;

cout<<"hats = "<<hats<<";heads = "<<heads<<endl;
cout<<"hats+heads = "<<hats+heads<<endl;
cout<<"hats-heads = "<<hats-heads<<endl;
cout<<"hats*heads = "<<hats*heads<<endl;
cout<<"hats/heads = "<<hats/heads<<endl;
}

11：#include<iostream>
using namespace std;
void main()
{
cout.setf(ios_base::fixed,ios_base::floatfield);
cout<<"Integer division:9/5= "<<9/5<<endl;
cout<<"Floating-point division: 9.0/5.0 = ";
cout<<9.0/5.0<<endl;
cout<<"Mixed division: 9.0/5 = "<<9.0/5<<endl;
cout<<"double constants:1.e7/9.0 = ";
cout<<1.e7/9.0<<endl;
cout<<"float constants:1.e7f/9.0f = ";
cout<<1.e7f/9.0f<<endl;
}

12：#include<iostream>
using namespace std;
void main()
{
const int Lbs_per_stn=14;
int lbs;

cout<<"Enter your weight in pounds: ";
cin>>lbs;
int stone=lbs/Lbs_per_stn;
int pounds=lbs%Lbs_per_stn;
cout<<lbs<<" pounds are "<<stone
<<" stone, "<<pounds<<" pound(s).\n";
}

13：#include<iostream>
using namespace std;
void main()
{
cout.setf(ios_base::fixed,ios_base::floatfield);
float tree=3;
int guess(3.9832);
int debt=7.2E12;
cout<<"tree = "<<tree<<endl;
cout<<"guess = "<<guess<<endl;
cout<<"debt = "<<debt<<endl;
}

14：#include<iostream>
using namespace std;
void main()
{
int auks,bats,coots;
auks=19.99+11.99;
bats=(int)19.99+(int)11.99;
coots=int (19.99)+int (11.99);
cout<<"auks = "<<auks<<",bats = "<<bats;
cout<<",coots = "<<coots<<endl;
char ch='Z';
cout<<"The code for"<<ch<<" is ";
cout<<int (ch)<<endl;
cout<<"Yes,the code is ";
//cout<<statiic_cast<int>(ch)<<endl;
}

第四章

1：#include<iostream>
using namespace std;
void main()
{
int yams[3];
yams[0]=7;
yams[1]=8;
yams[2]=6;
int yamcosts[3]={20,30,5};
cout<<"Total yams = ";
cout<<yams[0]+yams[1]+yams[2]<<endl;
cout<<"The package with "<<yams[1]<<" yams costs ";
cout<<yamcosts[1]<<" cents per yam.\n";
int total=yams[0]*yamcosts[0]+yams[1]*yamcosts[1];
total=total+yams[2]*yamcosts[2];
cout<<"The total yam expense is "<<total<<" cents.\n";
cout<<"\nSize of yams array = "<<sizeof yams;
cout<<" bytes.\n";
cout<<"Size of one element = "<<sizeof yams[0];
cout<<" bytes.\n";
}

2：#include<iostream>
using namespace std;
void main()
{
const int size=15;
char name1[size];
char name2[size]="C++owboy";
cout<<"Howdy! I'm "<<name2;
cout<<"! what's your name?\n";
cin>>name1;
cout<<"Well, "<<name1<<",your name has ";
cout<<strlen(name1)<<" letters and is stored\n";
cout<<" in an array of "<<sizeof name1<<" bytes.\n";
cout<<"Your initial is "<<name1[0]<<".\n";
name2[3]='\0';
cout<<"Here are the first 3 charchters of my name: ";
cout<<name2<<endl;
}

3：#include<iostream>
using namespace std;
void main()
{
const int arsize=20;
char name[arsize];
char dessert[arsize];
cout<<"Enter your name:\n";
cin>>name;
cout<<"Enter your favorite dessert:\n";
cin>>dessert;
cout<<"I have some delicious "<<dessert;
cout<<" for you, "<<name<<".\n";

}

4：#include<iostream>
using namespace std;
void main()
{
const int arsize=20;
char name[arsize];
char dessert[arsize];
cout<<"Enter your name:\n";
cin.getline(name,arsize);
cout<<"Enter your favorite dessert:\n";
cin.getline(dessert,arsize);
cout<<"I have some delicious "<<dessert;
cout<<" for you, "<<name<<".\n";

}

5：#include<iostream>
using namespace std;
void main()
{
const int arsize=20;
char name[arsize];
char dessert[arsize];
cout<<"Enter your name:\n";
cin.get(name,arsize).get();
cout<<"Enter your favorite dessert:\n";
cin.get(dessert,arsize);
cout<<"I have some delicious "<<dessert;
cout<<" for you, "<<name<<".\n";

}

6：#include<iostream>
#include<string>
using namespace std;
void main()
{
char charr1[20];
char charr2[20]="jaguar";
string str1;
string str2="panther";
cout<<"Enter a kind of feline: ";
cin>>charr1;
cout<<"Enter another kind of feline: ";
cin>>str1;
cout<<"Here are some felines:\n";
cout<<charr1<<" "<<charr2<<" "
<<str1<<" "<<str2
<<endl;
cout<<"The third letter in "<<charr2<<" is "
<<charr2[2]<<endl;
cout<<"The third letter in "<<str2<<" is "
<<str2[2]<<endl;
}

7：#include<iostream>
#include<string>
using namespace std;
void main()
{
string s1="penguin";
string s2,s3;
cout<<"You can assign one string object to another:s2=s1\n";
s2=s1;
cout<<"s1: "<<s1<<",s2: "<<s2<<endl;
cout<<"You can assign a c-style string to a string object.\n";
cout<<"s2= \"buzzard\"\n";
s2="buzzard";
cout<<"s2: "<<s2<<endl;
cout<<"You can concatenate strings: s3=s1+s2\n";
s3=s1+s2;
cout<<"s3: "<<s3<<endl;
cout<<"You can append strings.\n";
s1+=s2;
cout<<"s1+=s2 yields s1= "<<s1<<endl;
s2+=" for a day";
cout<<"s1+=\" for a day\" yields s2 = "<<s2<<endl;
}

8：#include<iostream>
#include<string>
#include<cstring>
using namespace std;
void main()
{
char charr1[20];
char charr2[20]="jaguar";
string str1;
string str2="panther";
str1=str2;
strcpy(charr1,charr2);
str1+=" paste";
strcat(charr1," juice");
int len1=str1.size();
int len2=strlen(charr1);
cout<<"The string "<<str1<<" contains "
<<len1<<" characters.\n";
cout<<"The string "<<charr1<<" contains "
<<len2<<" characters.\n";

}

9：#include<iostream>
#include<string>
#include<cstring>
using namespace std;
void main()
{
char charr[20];
string str;
cout<<"Length of string in charr before input: "
<<strlen(charr)<<endl;
cout<<"Length of string in str before input: "
<<str.size()<<endl;
cout<<"Enter a line of text:\n";
cin.getline(charr,20);
cout<<"You entered: "<<charr<<endl;
cout<<"Enter another line of text:\n";
getline(cin,str);//将cin用作参数，到str查找输入，会自动调整大小
cout<<"You entered: "<<str<<endl;
cout<<"Length of string in charr after input: "
<<strlen(charr)<<endl;
cout<<"Length of string in str before input: "
<<str.size()<<endl;
}

10：#include<iostream>
struct inflatable
{
char name[20];
float volume;
double price;
};
int main()
{
using namespace std;
inflatable guest=
{
"Glorious Gloria",
1.88,
29.99
};
inflatable pal=
{
"Audacious Arthur",
3.12,
32.99
};
cout<<"Expand your guest list with "<<guest.name;
cout<<" and "<<pal.name<<"!\n";
cout<<"You can have both for $";
cout<<guest.price+pal.price<<"!\n";
cout<<guest.volume+pal.volume<<endl;
return 0;
}

11：#include<iostream>
using namespace std;
struct inflatable
{
char name[20];
float volume;
double price;
};
int main()
{
inflatable bouquet=
{
"sunflowers",
0.20,
12.49
};
inflatable choice;
cout<<"bouquet: "<<bouquet.name<<" for $";
cout<<bouquet.price<<endl;

choice=bouquet;
cout<<"choice: "<<choice.name<<" for $";
cout<<choice.price<<endl;
return 0;
}

12：#include<iostream>
using namespace std;
struct inflatable
{
char name[20];
float volume;
double price;
};
int main()
{
inflatable guests[2]=
{
{ "Bambi",0.5,21.99 },
{ "Godzilla",2000,565.99 }
};
cout<<"The guests "<<guests[0].name<<" and "<<guests[1].name
<<"\nhave a combined volume of "
<<guests[0].volume+guests[1].volume<<" cubic feet.\n";
return 0;
}

13：#include<iostream>
using namespace std;
int main()
{
int donuts=6;
double cups=4.5;
cout<<"donuts valus = "<<donuts;
cout<<" and donuts address = "<<&donuts<<endl;
cout<<"cups value = "<<cups;
cout<<" and cups addres = "<<&cups<<endl;
}

14：#include<iostream>
using namespace std;
int main()
{
int updates=6;
int *p_updates;
p_updates=&updates;

cout<<"Value:updates = "<<updates;
cout<<",*p_updates = "<<*p_updates<<endl;

cout<<"Address: &update = "<<&updates;
cout<<",p_updates = "<<p_updates<<endl;

*p_updates=*p_updates+1;
cout<<"Now updates = "<<updates<<endl;
return 0;
}

15：#include<iostream>
#include<cstring>
using namespace std;
char *getname(void);
int main()
{
char *name;

name=getname();
cout<<name<<" at "<<(int *)name<<endl;
delete []name;

name=getname();
cout<<name<<" at "<<(int *)name<<endl;
delete []name;
return 0;
}
char *getname()
{
char temp[80];
cout<<"Enter last name: ";
cin>>temp;
char *pn=new char[strlen(temp)+1];
strcpy(pn,temp);
return pn;
}

16：#include<iostream>
using namespace std;
int main()
{
double wages[3]={ 10000.0,20000.0,30000.0 };
short stacks[3]={ 3,2,1 };

double *pw=wages;
short *ps=&stacks[0];

cout<<"pw= "<<pw<<",*pw= "<<*pw<<endl;
pw=pw+1;
cout<<"add 1 to the pw pointer:\n";
cout<<"pw= "<<pw<<",*pw= "<<*pw<<"\n\n";
cout<<"ps= "<<ps<<",*ps= "<<*ps<<"\n\n";
ps=ps+1;
cout<<"add 1 to the ps pointer:\n";
cout<<"ps= "<<ps<<",*ps= "<<*ps<<"\n\n";

cout<<"access two elements with array notation\n";
cout<<"stacks[0]= "<<stacks[0]
<<",stacks[1]= "<<stacks[1]<<endl;
cout<<"access two elements with pointer notation\n";
cout<<"*stacks= "<<*stacks
<<",*(stacks+1)= "<<*(stacks+1)<<endl;

cout<<sizeof wages<<" =size of wages array\n";
cout<<sizeof pw<<" =size of pw pointer\n";
return 0;
}

17：//指针和数组的真正区别
#include<iostream>
using namespace std;
int main()
{
double *p3=new double[3];
p3[0]=0.2;
p3[1]=0.5;
p3[2]=0.8;
cout<<"p3[1] is "<<p3[1]<<".\n";
p3=p3+1;
cout<<"Now p3[0] is "<<p3[0]<<" and ";
cout<<"p3[1] is "<<p3[1]<<".\n";
p3=p3-1;