Enum with attributes in Python
我是一个Java开发人员,但现在我正在研究一个Python项目。是否可以写入其构造函数具有属性的枚举?
我会在Java中这样做。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | public class Main { private enum Planet { MERCURY(3.303e+23, 2.4397e6), VENUS(4.869e+24, 6.0518e6), EARTH(5.976e+24, 6.37814e6), MARS(6.421e+23, 3.3972e6), JUPITER(1.9e+27, 7.1492e7), SATURN(5.688e+26, 6.0268e7), URANUS(8.686e+25, 2.5559e7), NEPTUNE(1.024e+26, 2.4746e7); private final double mass; // in kilograms private final double radius; // in meters Planet(double mass, double radius) { this.mass = mass; this.radius = radius; } @Override public String toString() { return super.toString() +" radius:" + radius +", mass:" + mass; } } public static void main(String[] args) { for (Planet planet : Planet.values()) { System.out.println(planet); } } } |
正如Joram所指出的,你的星球例子在文档中。
如果您想知道如何向
噢,还有