C C C C++ 2 ( ) C C++ 4 C C

Transcription

1

2 # C C C C C C++ 4 C ( ) C

3 (D) ( ) C++ 3

4 6 Hello C++ 4

5 5

6 1. make Makefile.c (arithmetic.c) main main arithmetic (main.c) 6

7 2. N.c.h main.c main main extern 7 main (main.c).c extern

8 3. N N n OK OK OK 8

9 9

10 10

11 C C++ C with Classes C++ C C C++ C++ 11

12 .cc gcc.cpp g++ g++ hello_c++.cc 12

13 Hello_c++.cc #include <iostream> C using namespace std; stdio.h std int main() { cout << "Hello C++!" << endl; cout int n; cout << "n = "; cin >> n; cin int s = 0; for (int i=1; i<=n; i++) s+=i; cout << "sum(1.." << n << ") = " << s << endl; return 0; 13

14 C++ cout cerr endl n endl cout << hello << endl; cin int n; cin >> n; cout cin C printf scanf 14

15 C++ include include #include <iostream> C++ C C include #include <iostream> #include <stdio.h> C 15 C++

16 using namespace std; Namespace 2 cout std std::cout std:: using namespace std; C /* */ 16

17 17

18 Windows 18

19 / / pptx pptx 2013/8/8 A docx docx 2013/11/26 A XXX pptx 2012/2/9 B docx 2013/1/7 B 19

20 20

21 21

22 ex1_wo_class.cc #include <string> string #include <iostream> using namespace std; int main() { string suzuki_name = " "; int suzuki_balance = ; string tanaka_name = " "; int tanaka_balance = ; suzuki_balance += 10000; tanaka_balance -= 2000; 2000 cout << suzuki_name << " << suzuki_balance << " " << endl; cout << tanaka_name << " " << tanaka_balance << " " << endl; return 0; 22

23 ex2_w_class.cc #include <string> #include <iostream> using namespace std; class Account { public: string name; int balance; ; int main() { Account suzuki; suzuki.name = " "; suzuki.balance = ; tanaka.name = " "; tanaka.balance = ; suzuki.balance += 10000; tanaka.balance -= 2000; 2000 cout << suzuki.name << " " << suzuki.balance << " " << endl; cout << tanaka.name << " " << tanaka.balance << " " << endl; Account tanaka; return 0; 23

24 Account 2 string name int balance class Account { public: string name; int balance; ; 24

25 Account suzuki; Account tanaka; suzuki.name = " "; suzuki.balance = ; tanaka.name = " "; tanaka.balance = ; 25

26 class struct struct Account { public: string name; int balance; ; C struct Account suzuki; C++ struct Account suzuki; 26

27 ex3_w_class2.cc #include <string> #include <iostream> using namespace std; class Account { private: string name; int balance; public: Account(string _name, int _balance) { name = _name; balance = _balance; string get_name() { return name; int get_balance() { return balance; void deposit(int amnt) { balance += amnt; void withdraw(int amnt) { balance -= amnt; ; 27

28 ex3_w_class2.cc int main() { Account suzuki(, ); Account tanaka(" ", ); suzuki.deposit(10000); tanaka.withdraw(2000); 2000 cout << suzuki.get_name() << " " << suzuki.get_balance() << " " << endl; cout << tanaka.get_name() << " " << tanaka.get_balance() << " " << endl; return 0; 28

29 29 again 4 get_name get_balance deposit withdraw string get_name() { return name; int get_balance() { return balance; void deposit(int amnt) { balance += amnt; void withdraw(int amnt) { balance -= amnt; ;

30 class Account { public: string name; int balance; ; class Account { private: string name; int balance; ; 30 private ex2_w_class.cc public

31 Account(string _name, int _balance) { name = _name; balance = _balance; Account suzuki(, ); Account tanaka(" ", ); 31

32 Account() { 32

33 33

34 ex4_account.h #ifndef ex4_account_h #define ex4_account_h #include <string> class Account { private: std::string name; int balance; public: Account(std::string _name, int _balance) { name = _name; balance = _balance; std::string get_name() { return name; int get_balance() { return balance; void deposit(int amnt) { balance += amnt; void withdraw(int amnt) { balance -= amnt; ; #endif 34

35 ex4_main.cc #include <iostream> #include "ex4_account.h" Account using namespace std; int main() { Account suzuki(" ", ); Account tanaka(" ", ); suzuki.deposit(10000); tanaka.withdraw(2000); 2000 cout << suzuki.get_name() << " " << suzuki.get_balance() << " " << endl; cout << tanaka.get_name() << " " << tanaka.get_balance() << " " << endl; return 0; 35

36 g++ ex4_main.cc.h using namespace std; include include #ifndef ex4_account_h #define ex4_account_h 36 #endif

37 ex5_account.h #ifndef ex5_account_h #define ex5_account_h #include <string> class Account { private: std::string name; int balance; public: Account(std::string _name, int _balance); std::string get_name(); int get_balance(); void deposit(int amnt); void withdraw(int amnt); ; #endif 37

38 ex5_account.cc #include "ex5_account.h" Account Account::Account(std::string _name, int _balance) { name = _name; balance = _balance; std::string Account::get_name() { return name; int Account::get_balance() { return balance; void Account::deposit(int amnt) { balance += amnt; void Account::withdraw(int amnt) { balance -= amnt; 38

39 ex5_main.cc #include <iostream> #include "ex5_account.h" Account using namespace std; ex4_main.cc int main() { Account suzuki(" ", ); Account tanaka(" ", ); suzuki.deposit(10000); tanaka.withdraw(2000); 2000 cout << suzuki.get_name() << " " << suzuki.get_balance() << " " << endl; cout << tanaka.get_name() << " " << tanaka.get_balance() << " " << endl; return 0; 39

40 g++ -c ex5_main.cc g++ -c ex5_account.cc g++ ex5_main.o ex5_account.o.h ex5_main.o ex5_account.o Account(std::string _name, int _balance); std::string get_name(); 40 ex5_account.cc Account::Account(std::string _name, int _balance) {

41 41

42 1. 42

43 2. up, down, left, right 43

44 3. ax 3 +bx 2 +cx+d=0 a, b, c, d x 44

45 (.cc.cpp ) kadai1127.cc.cpp (Visual Studio ) kadai1127 _v.cc.cpp.txt report1127_.txt 45

46