elements = {'hydrogen': {'number': 1, 'weight': 1.00794, 'symbol': 'H'},
'helium': {'number': 2, 'weight': 4.002602, 'symbol': 'He'}}
在氢和氦字典中添加is_noble_gas
布尔条目。
答案 0 :(得分:2)
elements = {'hydrogen': {'number': 1, 'weight': 1.00794, 'symbol': 'H'}, 'helium': {'number': 2, 'weight': 4.002602, 'symbol': 'He'}}
noble_dict = { "hydrogen": False, "helium": True }
for noble in noble_dict:
elements[ noble ][ "is_noble_gas" ] = noble_dict[ noble ]
{'氦':{'符号':'他','数字':2,'重量':4.002602,'is_noble_gas':真},'氢':{'符号':'H','数字':1,'重量':1.00794,'is_noble_gas':False}}
答案 1 :(得分:2)
您应该访问字典并将is_noble_gas
添加为字典的新密钥,如下所示。
>>> elements['hydrogen']['is_noble_gas'] = False
>>> elements['helium']['is_noble_gas'] = True
答案 2 :(得分:0)
elements['hydrogen']['is_noble_gas'] = False
elements['hydrogen']['is_noble_gas'] = True