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  1. en.wikipedia.org › wiki › SunSun - Wikipedia

    Hace 12 horas · Etymology The English word sun developed from Old English sunne. Cognates appear in other Germanic languages, including West Frisian sinne, Dutch zon, Low German Sünn, Standard German Sonne, Bavarian Sunna, Old Norse sunna, and Gothic sunnō. All these words stem from Proto-Germanic * sunnōn. This is ultimately related to the word for sun in other branches of the Indo-European language ...

  2. en.wikipedia.org › wiki › 55 - Wikipedia

    Hace 12 horas · 5 (five) is a number, numeral and digit.It is the natural number, and cardinal number, following 4 and preceding 6, and is a prime number.. The first Pythagorean triple. Five is the third-smallest prime number, equal to the sum of the only consecutive positive integers to also be prime numbers (2 + 3).In integer sequences, five is also the second Fermat prime, and the third Mersenne prime ...

  3. Hace 12 horas · isinstance (object, class) isinstance (object, class)函数检查对象是否是指定类的实例,或者是否继承自该类,返回True或False。. 让我们定义一些类: isinstance (dog, Dog)返回True,因为dog是Dog类的实例。. isinstance (dog, Animal)返回True,因为Dog类继承自Animal类,所以dog也是Animal的实例 ...

  4. Hace 12 horas · 文章浏览阅读292次,点赞6次,收藏2次。面向对象编程(Object-Oriented Programming,OOP)是Java编程语言的核心思想之一。通过OOP,Java提供了一种结构化的编程方式,使代码更易于维护和扩展。一、类和对象1. 类的定义类是对象的蓝图或模板,定义了对象的属性和行为。