怎樣用Dim語(yǔ)句聲明變量？Dim是定義一個(gè)變量，相當(dāng)于關(guān)鍵字private。此外，還有一個(gè)公共關(guān)鍵字。定義變量的方法是：dim variable as variable type[dim的起源]。在b

怎樣用Dim語(yǔ)句聲明變量？

Dim是定義一個(gè)變量，相當(dāng)于關(guān)鍵字private。此外，還有一個(gè)公共關(guān)鍵字。定義變量的方法是：dim variable as variable type[dim的起源]。在basic語(yǔ)言中，通過(guò)定義數(shù)組的大小，可以使用dim。英文全名是dimension，中文意思是size。

在VB中，擴(kuò)展名dim用來(lái)定義變量

Python沒(méi)有私有變量，任何定義的變量都可以直接調(diào)用，但一般來(lái)說(shuō)，在定義的變量前后加兩個(gè)下劃線，并將這些變量作為私有變量處理，如以下代碼所示：

class person:defuuuuu inituuuuu（self）：self.uuuu privateuuuuuu=100p=person（）print（“uuuuu privateuuuuuuuuuuuuuuuuu:”，p.uuuuu privateuuuuuuuu）print（“p contains variables:”，（P）輸入：輸出：輸出：輸出：本公司的私營(yíng)私營(yíng)部門(mén)：100p包含變量：100p包含的輸出：輸出：輸出：輸出：輸出：輸出：輸出：輸出：輸出：輸出：輸出：輸出：100 P包含變量：包括“uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu100p包含變量：[“uuuuclass class classu ”、“ uuuuuclass class class class classu ”、、“ uuuuuuDELuuuuuuuuuclassclass”、“、、、、、““uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuclassclassclassclassclassuuuuuuuu“，”初始化“，”樂(lè)“，”lt“，”模塊“，”模塊目前，中國(guó)的經(jīng)濟(jì)UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU““““““““““，，，，，，，，，，，，，，，““““““它自己。它們對(duì)其他類(lèi)實(shí)例不可見(jiàn)或不可用，反射除外