C#類別 – Class, Method, Inheritance, Interface的基礎用法

Posted on by j_lam83
17
【C#教學】- Class, Method, Inheritance, Interface的基礎用法 – C#類別

C#類別 – 本篇會介紹 C# Class, C# Method, C# Inheritance, C# Interface的基礎用法. Let’s Start!

句型例子:
interface (父類別名稱){       
//父類別內容
}		class Person{
public string name;
public string surname;
public Person(string name, string surname){
this.name = name; this.surname = surname;
}
public string GetFullName(){
return this.name + ” ” + this.surname;
}
} 
句型例子:
class (類別名稱) :  (抽象類別名稱){       
//類別內容       
//可引用父類別內容       
//在例子中: string GetFullName
}		class Student : Person
{
public int chiGrade;
public int engGrade;
public int mathsGrade;
public Student(string name, string surname, int chiGrade , int engGrade, int mathsGrade) : base(name, surname)
{
this.chiGrade = chiGrade;
this.engGrade = engGrade;
this.mathsGrade = mathsGrade; }
public bool isChiPassed() {
if (chiGrade < 50)
{
return false;
}
return true; }
//Omit ….
} 
class (類別名稱) :  (抽象類別名稱){       
//類別內容       
//可引用父類別內容       
//在例子中: string GetFullName
}		class Teacher : Person{
public int teachingGrade;
public string schoolName;
public Teacher(string name, string surname, string schoolName, int teachingGrade) : base(name, surname) {
this.schoolName = schoolName;
this.teachingGrade = teachingGrade;
}
public bool isTeachingPassed() {
if (chiGrade < 50) {
return false; }
return true; }
} 
句型例子:
interface (介面名稱){       
//介面內容
}		interface ICheckedPassed{ bool isPassed(); } 
句型例子:
class (類別名稱) :  (介面名稱){       
//類別內容       
//必須展開介面內容       
//在例子中: bool isPassed()
}		class Student : Person, ICheckedPassed{
public int chiGrade;
public int engGrade;
public int mathsGrade;
//Omit ….
public bool isPassed(){
return isChiPassed() && isEngPassed() && isMathsPassed();
}
} 
句型例子:
class (類別名稱) :  (介面名稱){       
//類別內容       
//必須展開介面內容       
//在例子中: bool isPassed()
}		class Teacher : Person{
public int teachingGrade;
public string schoolName;
//Omit ….
public bool isPassed(){
return isTeachingPassed();
}
} 

相關頁面:

C#繼承 – Inheritance 繼承 的基本用法 – 加入 for loop, if, Array, Collection的例子

C#介面 – Interface 介面 的基本用法 – 加入 for loop, if, Array, Collection的例子

參考資料: https://docs.microsoft.com/en-us/dotnet/csharp/fundamentals/object-oriented/inheritance

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