Chapter 1 What is Programing Paradigm 1

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1 An Introduction to Programing Paradigm Chase Zhang May 8, 2013

2 Chapter 1 What is Programing Paradigm 1

3 CHAPTER 1. WHAT IS PROGRAMING PARADIGM 2 Definition from Wikipedia 1. Object-oriented programming/ 2. Functional programing / 3. Meta programing/

4 CHAPTER 1. WHAT IS PROGRAMING PARADIGM 3 Python Ruby, JavaScript C Java

5 Chapter 2 4

6 CHAPTER SmallTalk 2. C++ 3. Java 4. Python 5. Ruby 6. JavaScript 7. Objective-C 8. C#

7 CHAPTER // A C lang s way to do this 2 typedef struct _member { 3 char* name; 4 int sex; 5 int student_id; 6 int class_id; 7 int school_id; 8 int grade; 9 }member; // define the functions to generate and destroy structs 12 member* create_member(); 13 void delete_member(member* m);

8 CHAPTER member* m = create_member(); 2 3 // It s not good to allow accessing to properties directly 4 m->sex = ; 5 m->grade = 3000; 6 7 // You should uses setter functions 8 void set_member_name(member* m,char* name); 9 void set_member_sex(member* m,int name); 10 void set_member_student_id(member* m,int name); 11 void set_member_class_id(member* m,int name); 12 void set_member_grade(member* m,int name);

= 12431234; 5 m->grade = 3000; 6 7 // You should uses setter functions 8 void set_member_name(member*

9 CHAPTER //redefine struct 2 3 typedef struct _member { 4 char* name; 5 int sex; 6 int student_id; 7 }member; 8 9 //define getter functions char* get_member_name(member* m); 12 int get_member_sex(member* m); 13 int get_member_student_id(member* m); 14 int get_member_class_id(member* m); 15 int get_member_grade(member* m);

student_id; 7 }member; 8 9 //define getter functions 10 11 char*

10 CHAPTER 2. 9 C set_member_xxx get_member_xxx 3. set_xxx get_xxx 4. member Let's solve these problems!

11 CHAPTER See Ruby s Way 1 class Member 2 def initialize(name,student_id) 3 # Hello everyone, I am the initializer = name = student_id = sex 7 end 8 9 def name=(name) 10 # do something here to make sure a valid name is given = name 12 end 13

Hello everyone, I am the initializer 4 @name = name 5 @student_id =

12 CHAPTER def name # you do not need a reference to the instance here 16 end 17 end # generate a new member, the initialize function will be called automatically 20 a_member = Member.new("Chase Zhang","0709xxxx","boy") 21 a_member.name = "Hello" 22 puts a_member.name

here 16 end 17 end 18 19 # generate a new member, the initialize

13 CHAPTER Why this way?

14 CHAPTER class Member 2 # magics here!add only one line, you get 3 pairs of setters and getters 3 # it s the magic of metaprograming that we ll talk about later 4 attr_accessor :student_id,:name,:sex 5 def initialize(name,student_id,sex) = name # this is a property = student_id = sex 9 end 10 end 11 a_member = Member.new("Chase Zhang","0709xxxx","boy") 12 a_member.student_id = " " 13 puts a_member.student_id # print a_member.student_id

later 4 attr_accessor :student_id,:name,:sex 5 def initialize(name,student_id,sex) 6 @name = name # this is a property 7

15 CHAPTER / 1. / 2.

16 CHAPTER # all instances of the same class shared the functions 2 # but every instance of class is seperated 3 # the interperetor knows whose perperties to use 4 # and returns the correct value 5 6 a = Member.new("Chase Zhang","xxxxxxx","boy") 7 b = Member.new("Sean Lee","xxxxxxxx","boy") 8 9 puts a.name 10 # Chase Zhang puts b.name 13 # Sean Lee

class is seperated 3 # the interperetor knows whose perperties to use 4 # and returns the

17 CHAPTER Ruby Python C++ / new

18 CHAPTER class Vec2 2 attr_accessor :x,:y 3 def initialize(x,y) 6 end 7 def +(v2) 8 x + v2.x 9 y + v2.y 10 Vec2.new(x,y) 11 end 12 end 13 v1 = Vec2.new(1,3) 14 v2 = Vec2.new(2,5) 15 v1+v2 # we get Vec2(3,8)

4 @x=x 5 @y=y 6 end 7 def +(v2) 8 x = @x + v2.

19 CHAPTER 2. 18

20 Chapter 3 Magics Magic 19

21 CHAPTER 3. MAGICS 20 1 int sort_member(const void* member1,const void* member2) 2 { 3 member* m1 = (member*) member1; 4 member* m2 = (member*) member2; 5 return strcmp(m1->name,m2->name); 6 } 7 int main(void) 8 { 9 // qsort(member_list, 11 sizeof(member_list)/sizeof(member*), 12 sort_member); 13 return 0;}

22 CHAPTER 3. MAGICS 21 1 # ruby 2 3 member_list.sort do x,y 4 x.name <=> y.name 5 end 6 # that s all

23 CHAPTER 3. MAGICS 22 C 1 void print_member_if_sex(member* m,int sex) 2 { 3 if(sex==0){ 4 printf("%s\n",m->name); 5 } 6 } 7 8 int main(int argc, const char *argv[]) 9 { 10 // int i; 12 int sex = 0; // Zero stands for boy

24 CHAPTER 3. MAGICS for (i = 0; i < sizeof(member_list)/sizeof(member*); i++) { 14 print_member_if_sex(member_list[i],sex); 15 // You must past the varible sex into the function 16 } 17 return 0; 18 }

25 CHAPTER 3. MAGICS 24 1 sex_wanted = "boy" 2 3 member_list.each do member 4 if member.sex == sex_wanted 5 puts member.name 6 end 7 end 8 # that s all

26 Chapter 4 Meta 25

27 CHAPTER 4. META 26

28 CHAPTER 4. META 27 1 class Member 2 attr_accessor :student_id,:name,:sex # magic >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 6 7 def self.field(sym,range) 8 # a program to program 9 define_method sym do 11 end 12 end # magic <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 15

29 CHAPTER 4. META def initialize(name,student_id,sex) = name = student_id = sex 20 # magic > 21 Member.field :school_id, Member.field :grade, # magic < 24 end 25 end c = Member.new "Chase Zhang","0709xxxx","boy" puts c.school_id # puts c.grade # 09

30 CHAPTER 4. META 29 1 # before magic 2 puts 1+1 # # magic >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 5 class Fixnum 6 alias :old_plus :+ # new name for plus operator 7 8 def +(value) end 11 end 12 # magic <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

31 CHAPTER 4. META # after magic 15 puts 1+1 # 0

32 Chapter 5 Thank you and... 31

33 CHAPTER 5. THANK YOU AND Ruby 2. Dive into Python 3. Ruby Some Books Some websites JavaScript/CoffeeScript 2. Lisp Some Languages

○○學校101學年上學期公民與社會科

○○學校101學年上學期公民與社會科國立台東高中 102 學年度上學期第一次段考一年級公民與社會科試題卷範圍 : 公民 ( 一 ) 第 1~2 課劃答案卡 : 是班級 : 姓名 : 座號 : 題組單選題 :( 共 100 分, 每一小题 2 分 ) 1 為了讓喪葬禮俗更符合現代的觀念, 內政部長曾在 2010