如何从给定Python Elements类代码中打印元素周期表元素名称列表

• 首先把你已经创建好的所有Elements类实例汇总到同一个列表中，方便批量遍历
• 用Python列表推导式遍历这个实例列表，逐个提取每个实例的name属性，就能得到目标格式的列表

完整可运行代码 #

class Elements:
    def __init__(self, name, number, symbol, group, family):
        self.name = name
        self.number = number
        self.symbol = symbol
        self.group = group
        self.family = family


hydrogen = Elements("Hydrogen", 1, "H", "Nonmetal", "Alkali Metal")
helium = Elements("Helium", 2, "He", "Nonmetal", "Noble Gas")
lithium = Elements("Lithium", 3, "Li", "Metal", "Alkali Metal")
beryllium = Elements("Beryllium", 4, "Be", "Metal", "Alkali Earth Metal")
boron = Elements("Boron", 5, "B", "Metalloid", "Boron")
carbon = Elements("Carbon", 6, "C", "Nonmetal", "Carbon")
nitrogen = Elements("Nitrogen", 7, "N", "Nonmetal", "Nitrogen")
oxygen = Elements("Oxygen", 8, "O", "Nonmetal", "Oxygen")
fluorine = Elements("Fluorine", 9, "F", "Nonmetal", "Halogen")
neon = Elements("Neon", 10, "Ne", "Nonmetal", "Noble Gas")
sodium = Elements("Sodium", 11, "Na", "Metal", "Alkali Metal")
magnesium = Elements("Magnesium", 12, "Mg", "Metal", "Alkali Earth Metal")
aluminum = Elements("Aluminum", 13, "Al", "Metal", "Boron")
silicon = Elements("Silicon", 14, "Si", "Metalloid", "Carbon")
phosphorus = Elements("Phosphorus", 15, "P", "Nonmetal", "Nitrogen")
sulfur = Elements("Sulfur", 16, "S", "Nonmetal", "Oxygen")
chlorine = Elements("Chlorine", 17, "Cl", "Nonmetal", "Halogen")
argon = Elements("Argon", 18, "Ar", "Nonmetal", "Noble Gas")
potassium = Elements("Potassium", 19, "K", "Metal", "Alkali Metal")
calcium = Elements("Calcium", 20, "Ca", "Metal", "Alkali Earth Metal")

# 汇总所有元素实例
element_objs = [hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, neon, sodium, magnesium, aluminum, silicon, phosphorus, sulfur, chlorine, argon, potassium, calcium]
# 提取所有元素的名称属性组成新列表
element_name_list = [obj.name for obj in element_objs]
# 打印输出
print(element_name_list)

运行输出结果 #

['Hydrogen', 'Helium', 'Lithium', 'Beryllium', 'Boron', 'Carbon', 'Nitrogen', 'Oxygen', 'Fluorine', 'Neon', 'Sodium', 'Magnesium', 'Aluminum', 'Silicon', 'Phosphorus', 'Sulfur', 'Chlorine', 'Argon', 'Potassium', 'Calcium']

如果你需要提取其他属性，比如元素符号、原子序数，只需要把列表推导式里的.name替换成.symbol、.number即可。

内容的提问来源于stack exchange，提问作者BuroTime