Python 3嵌套有序字典键访问

# 导入有序字典模块
from collections import OrderedDict

# 创建一个嵌套有序字典
nested_dict = OrderedDict({
    'outer_key1': OrderedDict({
        'inner_key1': 'value1',
        'inner_key2': 'value2'
    }),
    'outer_key2': OrderedDict({
        'inner_key3': 'value3',
        'inner_key4': 'value4'
    })
})

# 访问嵌套有序字典的键
value1 = nested_dict['outer_key1']['inner_key1']
value2 = nested_dict['outer_key1']['inner_key2']
value3 = nested_dict['outer_key2']['inner_key3']
value4 = nested_dict['outer_key2']['inner_key4']

# 打印结果
print(value1)  # 输出: value1
print(value2)  # 输出: value2
print(value3)  # 输出: value3
print(value4)  # 输出: value4