![\"python\u5982\u4f55\u63d0\u53d6json\u7684\u67d0\u4e00\u8282\"](\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25073456\/1ec80633-b372-4920-acc8-53b041e0e943.webp\")
<\/p>\n<\/p>\n
Python \u63d0\u53d6 JSON \u67d0\u4e00\u8282\u7684\u65b9\u6cd5<\/strong>\uff1a\u4f7f\u7528 \u5728\u89e3\u6790 JSON \u6570\u636e\u65f6\uff0cPython \u63d0\u4f9b\u4e86\u5f3a\u5927\u7684 \u8981\u4ece JSON \u6570\u636e\u4e2d\u63d0\u53d6\u7279\u5b9a\u90e8\u5206\uff0c\u9996\u5148\u9700\u8981\u5c06 JSON \u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a Python \u5b57\u5178\u6216\u5217\u8868\u3002\u53ef\u4ee5\u4f7f\u7528 json_data = '''<\/p>\n {<\/p>\n "store": {<\/p>\n "book": [<\/p>\n {<\/p>\n "category": "reference",<\/p>\n "author": "Nigel Rees",<\/p>\n "title": "Sayings of the Century",<\/p>\n "price": 8.95<\/p>\n },<\/p>\n {<\/p>\n "category": "fiction",<\/p>\n "author": "Evelyn Waugh",<\/p>\n "title": "Sword of Honour",<\/p>\n "price": 12.99<\/p>\n }<\/p>\n ],<\/p>\n "bicycle": {<\/p>\n "color": "red",<\/p>\n "price": 19.95<\/p>\n }<\/p>\n }<\/p>\n }<\/p>\n '''<\/p>\n data = json.loads(json_data)<\/p>\n store_data = data['store']<\/p>\n print(store_data)<\/p>\n <\/code><\/pre>\n<\/p>\n \u8f93\u51fa\uff1a<\/p>\n<\/p>\n <\/code><\/pre>\n<\/p>\n \u4f8b\u5982\uff1a<\/p>\n<\/p>\n json_data = '{"name": "John", "age": 30, "city": "New York"}'<\/p>\n data = json.loads(json_data)<\/p>\n print(data)<\/p>\n <\/code><\/pre>\n<\/p>\n \u4e00\u65e6\u5c06 JSON \u5b57\u7b26\u4e32\u89e3\u6790\u4e3a Python \u5b57\u5178\u6216\u5217\u8868\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528\u7d22\u5f15\u6216\u952e\u6765\u8bbf\u95ee\u7279\u5b9a\u90e8\u5206\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n json_data = '''<\/p>\n {<\/p>\n "employees": [<\/p>\n { "firstName": "John", "lastName": "Doe" },<\/p>\n { "firstName": "Anna", "lastName": "Smith" },<\/p>\n { "firstName": "Peter", "lastName": "Jones" }<\/p>\n ]<\/p>\n }<\/p>\n '''<\/p>\n data = json.loads(json_data)<\/p>\n first_employee = data['employees'][0]<\/p>\n print(first_employee)<\/p>\n <\/code><\/pre>\n<\/p>\n \u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u53ef\u80fd\u9700\u8981\u6839\u636e\u6761\u4ef6\u5224\u65ad\u6216\u5faa\u73af\u6765\u63d0\u53d6 JSON \u6570\u636e\u7684\u7279\u5b9a\u90e8\u5206\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n json_data = '''<\/p>\n {<\/p>\n "employees": [<\/p>\n { "firstName": "John", "lastName": "Doe", "age": 30 },<\/p>\n { "firstName": "Anna", "lastName": "Smith", "age": 25 },<\/p>\n { "firstName": "Peter", "lastName": "Jones", "age": 45 }<\/p>\n ]<\/p>\n }<\/p>\n '''<\/p>\n data = json.loads(json_data)<\/p>\n older_employees = [employee for employee in data['employees'] if employee['age'] > 30]<\/p>\n print(older_employees)<\/p>\n <\/code><\/pre>\n<\/p>\n \u6709\u65f6\u5019\uff0cJSON \u6570\u636e\u53ef\u80fd\u662f\u6df1\u5ea6\u5d4c\u5957\u7684\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528\u9012\u5f52\u51fd\u6570\u6765\u63d0\u53d6\u7279\u5b9a\u90e8\u5206\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n json_data = '''<\/p>\n {<\/p>\n "store": {<\/p>\n "book": [<\/p>\n {<\/p>\n "category": "reference",<\/p>\n "author": "Nigel Rees",<\/p>\n "title": "Sayings of the Century",<\/p>\n "price": 8.95<\/p>\n },<\/p>\n {<\/p>\n "category": "fiction",<\/p>\n "author": "Evelyn Waugh",<\/p>\n "title": "Sword of Honour",<\/p>\n "price": 12.99<\/p>\n }<\/p>\n ],<\/p>\n "bicycle": {<\/p>\n "color": "red",<\/p>\n "price": 19.95<\/p>\n }<\/p>\n }<\/p>\n }<\/p>\n '''<\/p>\n data = json.loads(json_data)<\/p>\n def get_nested_data(data, keys):<\/p>\n if not keys:<\/p>\n return data<\/p>\n return get_nested_data(data[keys[0]], keys[1:])<\/p>\n title = get_nested_data(data, ['store', 'book', 0, 'title'])<\/p>\n print(title)<\/p>\n <\/code><\/pre>\n<\/p>\n \u5728\u5904\u7406\u590d\u6742 JSON \u6570\u636e\u65f6\uff0c\u53ef\u80fd\u9700\u8981\u7ed3\u5408\u591a\u79cd\u65b9\u6cd5\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7efc\u5408\u793a\u4f8b\uff0c\u6f14\u793a\u5982\u4f55\u5904\u7406\u590d\u6742 JSON \u6570\u636e\uff1a<\/p>\n<\/p>\n json_data = '''<\/p>\n {<\/p>\n "store": {<\/p>\n "book": [<\/p>\n {<\/p>\n "category": "reference",<\/p>\n "author": "Nigel Rees",<\/p>\n "title": "Sayings of the Century",<\/p>\n "price": 8.95,<\/p>\njson<\/code> \u6a21\u5757\u89e3\u6790 JSON \u6570\u636e\u3001\u4f7f\u7528\u7d22\u5f15\u6216\u952e\u8bbf\u95ee\u7279\u5b9a\u90e8\u5206\u3001\u7ed3\u5408\u6761\u4ef6\u5224\u65ad\u6216\u5faa\u73af\u63d0\u53d6\u3002<\/p>\n<\/p>\njson<\/code> \u6a21\u5757\uff0c\u53ef\u4ee5\u8f7b\u677e\u5730\u4ece JSON \u5bf9\u8c61\u4e2d\u63d0\u53d6\u7279\u5b9a\u90e8\u5206\u3002\u4f7f\u7528 json<\/code> \u6a21\u5757\u89e3\u6790 JSON \u6570\u636e\u3001\u4f7f\u7528\u7d22\u5f15\u6216\u952e\u8bbf\u95ee\u7279\u5b9a\u90e8\u5206<\/strong>\uff0c\u662f\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u3002\u8ba9\u6211\u4eec\u8be6\u7ec6\u63a2\u8ba8\u5176\u4e2d\u4e00\u79cd\u65b9\u6cd5\u3002<\/p>\n<\/p>\njson.loads()<\/code> \u51fd\u6570\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002\u7136\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7\u7d22\u5f15\u6216\u952e\u8bbf\u95ee\u6240\u9700\u90e8\u5206\u3002\u4e0b\u9762\u662f\u8be6\u7ec6\u793a\u4f8b\uff1a<\/p>\n<\/p>\nimport json<\/p>\nJSON \u5b57\u7b26\u4e32<\/strong><\/h2>\n
\u5c06 JSON \u5b57\u7b26\u4e32\u89e3\u6790\u4e3a Python \u5b57\u5178<\/strong><\/h2>\n
\u63d0\u53d6 store \u90e8\u5206<\/strong><\/h2>\n
{'book': [{'category': 'reference', 'author': 'Nigel Rees', 'title': 'Sayings of the Century', 'price': 8.95}, {'category': 'fiction', 'author': 'Evelyn Waugh', 'title': 'Sword of Honour', 'price': 12.99}], 'bicycle': {'color': 'red', 'price': 19.95}}<\/p>\n\u4e00\u3001\u4f7f\u7528
json<\/code> \u6a21\u5757\u89e3\u6790 JSON \u6570\u636e<\/h3>\n<\/p>\njson<\/code> \u6a21\u5757\u662f Python \u4e2d\u7528\u4e8e\u89e3\u6790 JSON \u6570\u636e\u7684\u6807\u51c6\u5e93\u3002\u5b83\u63d0\u4f9b\u4e86\u51e0\u4e2a\u91cd\u8981\u7684\u51fd\u6570\uff1a<\/p>\n<\/p>\n\n
json.loads()<\/code>: \u5c06 JSON \u5b57\u7b26\u4e32\u89e3\u6790\u4e3a Python \u5b57\u5178\u6216\u5217\u8868\u3002<\/li>\njson.load()<\/code>: \u4ece\u6587\u4ef6\u8bfb\u53d6 JSON \u6570\u636e\u5e76\u89e3\u6790\u4e3a Python \u5b57\u5178\u6216\u5217\u8868\u3002<\/li>\njson.dumps()<\/code>: \u5c06 Python \u5bf9\u8c61\u8f6c\u6362\u4e3a JSON \u5b57\u7b26\u4e32\u3002<\/li>\njson.dump()<\/code>: \u5c06 Python \u5bf9\u8c61\u8f6c\u6362\u4e3a JSON \u5b57\u7b26\u4e32\u5e76\u5199\u5165\u6587\u4ef6\u3002<\/li>\n<\/ul>\nimport json<\/p>\nJSON \u5b57\u7b26\u4e32<\/strong><\/h2>\n
\u5c06 JSON \u5b57\u7b26\u4e32\u89e3\u6790\u4e3a Python \u5b57\u5178<\/strong><\/h2>\n
\u4e8c\u3001\u4f7f\u7528\u7d22\u5f15\u6216\u952e\u8bbf\u95ee\u7279\u5b9a\u90e8\u5206<\/h3>\n<\/p>\n
import json<\/p>\nJSON \u5b57\u7b26\u4e32<\/strong><\/h2>\n
\u5c06 JSON \u5b57\u7b26\u4e32\u89e3\u6790\u4e3a Python \u5b57\u5178<\/strong><\/h2>\n
\u63d0\u53d6 employees \u5217\u8868\u4e2d\u7684\u7b2c\u4e00\u9879<\/strong><\/h2>\n
\u4e09\u3001\u7ed3\u5408\u6761\u4ef6\u5224\u65ad\u6216\u5faa\u73af\u63d0\u53d6<\/h3>\n<\/p>\n
import json<\/p>\nJSON \u5b57\u7b26\u4e32<\/strong><\/h2>\n
\u5c06 JSON \u5b57\u7b26\u4e32\u89e3\u6790\u4e3a Python \u5b57\u5178<\/strong><\/h2>\n
\u63d0\u53d6\u5e74\u9f84\u5927\u4e8e30\u7684\u5458\u5de5<\/strong><\/h2>\n
\u56db\u3001\u9012\u5f52\u63d0\u53d6\u5d4c\u5957 JSON \u6570\u636e<\/h3>\n<\/p>\n
import json<\/p>\nJSON \u5b57\u7b26\u4e32<\/strong><\/h2>\n
\u5c06 JSON \u5b57\u7b26\u4e32\u89e3\u6790\u4e3a Python \u5b57\u5178<\/strong><\/h2>\n
\u9012\u5f52\u51fd\u6570\u63d0\u53d6\u5d4c\u5957\u6570\u636e<\/strong><\/h2>\n
\u63d0\u53d6 store -> book -> \u7b2c\u4e00\u9879 -> title<\/strong><\/h2>\n
\u4e94\u3001\u5904\u7406\u590d\u6742 JSON \u6570\u636e<\/h3>\n<\/p>\n
import json<\/p>\n\u590d\u6742 JSON \u6570\u636e<\/strong><\/h2>\n