python解析多个键

data = {'key1': 'value1', 'key2': 'value2', 'key3': 'value3'}
value1 = data.get('key1')
value2 = data.get('key2')
value3 = data.get('key3')

data = {'key1': 'value1', 'key2': 'value2', 'key3': 'value3'}
for key in data:
    value = data[key]

data = {'key1': 'value1', 'key2': 'value2', 'key3': 'value3'}
new_data = {key: data[key] for key in ['key1', 'key2', 'key3']}

import json

json_data = '{"key1": "value1", "key2": "value2", "key3": "value3"}'
data = json.loads(json_data)
value1 = data['key1']
value2 = data['key2']
value3 = data['key3']