Merge pull request #11 from yuhan2680/main

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docs/en/quickstart/05class/02member.md

@@ -2,13 +2,13 @@
 lastUpdate: true
 ---
 
-# 类的成员
+# Member of class 
 
-和Java类似，在MCFPP中，类的成员包括属性和方法。属性是类的数据成员，用来存储对象的数据；方法是类的函数成员，用来操作对象的数据。类的成员可以通过`.`操作符来访问。
+Similar to Java, in MCFPP, members of class include attributes and methods. Attributes are the data members, used to store the data of the object; methods are the function of class member, used to operate the data of the object. Member of class can access by `.` operator.
 
-## 属性
+## Attributes 
 
-属性是类的数据成员，用来存储对象的数据。属性的定义语法如下：
+Attributes are the data member of class, used to store the data of a object. The grammar to define attributes is shown below:
 
 ```mcfpp
 class A{
@@ -17,11 +17,11 @@ class A{
 }
 ```
 
-上述代码定义了一个类`A`，它有两个属性`a`和`b`。`a`是一个整数类型的属性，没有初始化；`b`是一个整数类型的属性，初始化为`5`。
+The code before defined a class `A`, it has two attributes `a` and `b`. `a` is a integer attribute, not initialized; `b` is a integer attribute, initialized as `5`.
 
-## 方法
+## Method 
 
-方法是类的函数成员，用来操作对象的数据。方法的定义语法如下：
+Methods are the function member of class, used to operate the data of the object. The grammar to define a method is shown below:
 
 ```mcfpp
 class A{
@@ -31,7 +31,7 @@ class A{
 }
 ```
 
-在方法中使用`this`关键字可以访问对象的属性。例如：
+Use keyword `this` can access the attributes of the object,such as:
 
 ```mcfpp
 class A{
@@ -42,13 +42,13 @@ class A{
 }
 ```
 
-## 访问控制
+## Access control 
 
-MCFPP中，类的成员可以使用`public`、`protected`、`private`关键字来控制访问权限。默认情况下，类的成员是`private`的。
+In MCFPP, members of class can use keywords `public`, `protected` and `private` to control the access rights. Default, members of class are `private`.
 
-- `public`：公有的，可以被外部访问。
-- `protected`：受保护的，可以被子类访问。
-- `private`：私有的，只能在类的内部访问。
+- `public`：public, accessible to outside.
+- `protected`：protected, accessible to subclasses.
+- `private`：private, only can access in the class.
 
 ```mcfpp
 class A{
@@ -59,16 +59,16 @@ class A{
 
 class B: A{
     void test(){
-        a = 1;  #合法
-        b = 2;  #合法
-        c = 3;  #编译错误
+        a = 1;  # Allowed 
+        b = 2;  # Allowed 
+        c = 3;  # Error 
     }
 }
 
 func test(){
     A obj = new A();
-    obj.a = 1;  #合法
-    obj.b = 2;  #编译错误
-    obj.c = 3;  #编译错误
+    obj.a = 1;  # Allowed 
+    obj.b = 2;  # Error 
+    obj.c = 3;  # Error 
 }
 ```

docs/en/quickstart/05class/03inheritance-abstract.md

@@ -2,13 +2,13 @@
 lastUpdate: true
 ---
 
-# 继承和抽象
+# Inheritance and abstraction
 
-MCFPP中，类支持继承和抽象。继承是指一个类可以派生出一个或多个子类，子类可以继承父类的属性和方法。抽象是指一个类可以定义抽象方法，子类必须实现这些抽象方法。
+In MCFPP, class support supports Inheritance and abstraction. Inheritance means a class can derive one or many subclasses, subclasses can inherit parent class’s attributes and methods. Abstraction means a class can define abstract function, subclasses must achieve those abstract functions.
 
-## 继承
+## Inheritance 
 
-继承是指一个类可以派生出一个或多个子类，子类可以继承父类的属性和方法。继承的语法如下：
+Inheritance means a class can derive one or many subclasses, subclasses can inherit parent class’s attributes and methods. The grammar of inheritance is shown below:
 
 ```mcfpp
 class Parent{
@@ -28,11 +28,11 @@ class Child: Parent{
 }
 ```
 
-使用`:`关键字可以声明一个类继承自另一个类。利用`super`关键字，子类可以访问父类的属性和方法。使用`protected`关键字可以声明受保护的属性，子类可以访问父类的受保护属性。使用`override`关键字可以重写父类的方法。
+Use keyword `:` can declare a class is inherited from another class. Use keyword `super`, subclasses can visit parent class’s attributes and methods. Keyword `protected` can declare the protected attributes, subclasses can visit the protected attributes of parent class. Use keyword `override` can rewrite parent class’s method.
 
-## 抽象
+## Abstraction 
 
-一个类可以定义抽象方法，子类必须实现这些抽象方法。抽象方法没有方法体，只有方法签名。抽象方法的定义语法如下：
+A class can define abstract methods, subclasses must achieve those abstract methods. Abstract methods have no method body,only have method abstraction. The grammar to define a abstract method is shown below:
 
 ```mcfpp
 abstract class A{
@@ -46,4 +46,4 @@ class B: A{
 }
 ```
 
-使用`abstract`关键字可以声明一个抽象类或一个抽象方法。抽象类的子类必须实现抽象方法，否则会编译错误。
+Use keyword `abstract`can define an abstract class or an abstract method. The subclass of abstract class must achieve the abstract method, else there’ll be compilation error.

docs/en/quickstart/06interface/01define-and-implement.md

@@ -2,13 +2,13 @@
 lastUpdate: true
 ---
 
-# 定义和实现接口
+# Define and implement 
 
-MCFPP中，可以使用`interface`关键字来声明一个接口。接口是一种抽象的数据类型，它定义了一组方法的签名，但没有具体的实现。类可以实现一个或多个接口，从而保证类具有接口中定义的方法。
+In MCFPP, can use keyword `interface` to declare an interface, interface is an abstract data type, it defines a group of function’s declaration, but have not achieved it. Class can achieve one or many interfaces, and make sure that class have the function defined in the interface.
 
-## 接口的声明
+## Define of interface 
 
-接口的声明语法如下：
+The grammar to define a interface is shown below:
 
 ```mcfpp
 interface InterfaceName{
@@ -18,27 +18,27 @@ interface InterfaceName{
 }
 ```
 
-接口中的方法只有方法签名，没有方法体。接口中的方法可以有多个，每个方法之间使用分号`;`分隔。接口中的方法一定都是抽象方法，但是不需要额外使用`abstract`关键字来声明
+There’s only declaration in the function of the interface, no function body. A interface can have many functions, each function separate by `;`. Functions in interface must be abstract function, don’t need to use keyword `abstract` to declare.
 
-## 接口的实现
+## Achieve of interface 
 
-接口不能被实例化，但可以被类实现。
+Interface can’t be instancing, but can achieve by class.
 
-类可以实现一个或多个接口。实现接口的类必须实现接口中定义的所有方法。实现接口的语法如下：
+Class can achieve one or many interfaces, the class that achieves interface must achieve all functions declared in the interface. The grammar of achieves a interface is shown below:
 
 ```mcfpp
 class ClassName: Interface1, Interface2, ...{
-    #类的属性和方法
+    # Attributes and functions of class 
     ...
     override func methodName(parameterList) -> returnType{
-        #方法体
+        # Function body 
     }
 }
 ```
 
-## 接口的继承
+## Inherit of interface 
 
-接口也可以继承自其他接口。继承接口的语法如下：
+Interface also can inherit from other interfaces. The grammar of inherit a interface is shown:
 
 ```mcfpp
 interface Interface1{
@@ -50,4 +50,4 @@ interface Interface2: Interface1{
 }
 ```
 
-如果一个类实现了一个继承了其他接口的接口，那么这个类必须实现接口以及其继承接口中定义的全部方法。
+If a class achieve an interface that inherits from other interface, then the class must achieve all functions of the interface and its inherited interface.