python不支持的数据类型有 python类里的私有变量如何定义?
python类里的私有变量如何定义?
Python没有私有变量。任何定义的变量都可以直接调用。但是,一般来说,您可以在定义的变量前后添加两个下划线,以将此类变量视为专用变量,如以下代码所示:
class person:defuuuuuuuinituuuuuuuu2self(self):self.uuuuu2p=person()print(“uuuuuu2privateuuuu1”,p.uuu2privateuuuu2)print(“p contains variables:”,(P)输入:输出:输出:输出:本公司的私营私营部门:100p包含变量:100p包含的输出:输出:输出:输出:输出:输出:输出:输出:输出:输出:输出:输出:100 P包含变量:包括“uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu100p包含变量:[“uuuuclass class classu ”、“ uuuuuclass class class class classu ”、、“ uuuuuuDELuuuuuuuuuclassclass”、“、、、、、““uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuclassclassclassclassclassuuuuuuuu“,”初始化“,”乐“,”lt“,”模块“,”模块目前,美国已经有了一个UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU“““““““““““,,,,,,,““““““,,,,”,”,“UUUUUUUUUU变量将在赋值后创建value
]等号(=)用来给变量赋值
=左边是变量名
=右边是存储在变量中的值
变量名=value
变量定义后,可以直接使用
示例:;!/usr/bin/Python
;-*-编码:UTF-8-*-
counter=100#赋值整数变量
miles=1000.0#浮点
name=“John”#字符串
print counter
print miles
print[name
输出:
100
1000.0
John John
Python是一种解释性语言。Python变量不需要声明,但需要初始化。Python解释器将为每个对象分配内存,即使它们的值完全相同(注意它们是否相同)。实际上,变量通过一个标记调用内存中的值,而变量名就是标记的名称,P Python可以通过直接赋值(计算机可以直接理解)用内存和值初始化变量。你可以这样理解。与编译语言相比,解释器语言的优势在于它可以帮助您完成很多事情,比如动态分配内存。在Python中,您可以直接将值赋给,例如整形、浮点、字符等。
python不支持的数据类型有 字符串比较大小python python访问私有属性
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