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                >[warning] **定義**:類字段 一個類字段是類中一個變量、屬性、或者方法,可以是靜態或者非靜態的。非靜態字段被稱為成員字段,所以我們有時候會說,一個靜態方法或者一個成員變量。 >[warning] De?nition: Class Field > A class ?eld is a variable, property or method of a class which can either be static or nonstatic. Non-static ?elds are referred to as member ?elds, so we speak of e.g. a static method or a member variable. 目前我們已經見過一般的類型和Haxe程序如何構造的。這節關于類字段的將對構造部分做出結論,同時通往Haxe的行為部分。這是因為類字段是表達式的家。 > So far we have seen how types and Haxe programs in general are structured. This section about class ?elds concludes the structural part and at the same time bridges to the behavioral part of Haxe. This is because class ?elds are the place where expressions (5) are at home. 有三種類字段: > There are three kinds of class ?elds: * **變量**:一個變量(第4.1節)類字段保存一個某類型的值,可以被讀取或者寫入。 * **屬性**:一個屬性(第4.2節)類字段定義一個定制的訪問行為,對比如在類之外的,看起來像一個變量字段。 * **方法**:一個方法(第4.3節)是一個函數,可以被調用執行一些代碼。 > * Variable: A variable(4.1) class ?eld holds a value of a certain type,which can be read or written. > * Property: A property (4.2) class ?eld de?nes a custom access behavior for something that, outside the class, looks like a variable ?eld. > * Method: A method (4.3) is a function which can be called to execute code. 嚴格說,一個變量可以被認為是一個屬性帶有某個訪問修飾符。事實上,Haxe編譯器在它們的類型化并不區分變量和屬性,但是它們仍然在語法層面分開。 > Strictly speaking, a variable could be considered to be a property with certain access modi?ers. Indeed,the Haxe Compiler does not distinguish variables and properties during its typing phase, but they remain separated at syntax level. 關于術語,一個方法是一個(靜態或非靜態)函數,屬于一個類。其他的函數,例如表達式中一個局部函數(第5.11節),不被認為是方法。 > Regarding terminology,a method is a (staticornon-static) function belonging to a class. Other functions, such as a local functions (5.11) in expressions, are not considered methods.
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