python類里的私有變量如何定義？Python沒(méi)有私有變量。任何定義的變量都可以直接調(diào)用。但是，一般來(lái)說(shuō)，您可以在定義的變量前后添加兩個(gè)下劃線，以將此類變量視為專用變量，如以下代碼所示：class

python類里的私有變量如何定義？

Python沒(méi)有私有變量。任何定義的變量都可以直接調(diào)用。但是，一般來(lái)說(shuō)，您可以在定義的變量前后添加兩個(gè)下劃線，以將此類變量視為專用變量，如以下代碼所示：

class person:defuuuuuuuinituuuuuuuu2self（self）：self.uuuuu2p=person（）print（“uuuuuu2privateuuuu1”，p.uuu2privateuuuu2）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：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，該公司的UUUU “，，“ UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU”、“UUUUUUUUUUUUUUUUUUU”，“UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU”、“，，，“，，，，，，，“，，，，，，，，，，，，，“““，，，“UUUUUUUUU通過(guò)導(dǎo)入模塊并用模塊名和類名。類需要實(shí)例化，函數(shù)不需要實(shí)例化。

為什么python不需要聲明函數(shù)類型？

首先要明確Python是后臺(tái)語(yǔ)言，不能直接用Python編寫微信小程序。

微信小程序是用JavaScript和CSS編寫的。

Python僅用于為小型程序提供背景數(shù)據(jù)。Java和PHP還可以為小程序提供背景數(shù)據(jù)。