{"id":966239,"date":"2024-12-27T04:45:42","date_gmt":"2024-12-26T20:45:42","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/966239.html"},"modified":"2024-12-27T04:45:45","modified_gmt":"2024-12-26T20:45:45","slug":"python%e5%a6%82%e4%bd%95%e6%b7%bb%e5%8a%a0%e5%ad%97%e5%85%b8%e6%95%b0%e6%8d%ae","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/966239.html","title":{"rendered":"python\u5982\u4f55\u6dfb\u52a0\u5b57\u5178\u6570\u636e"},"content":{"rendered":"

\"python\u5982\u4f55\u6dfb\u52a0\u5b57\u5178\u6570\u636e\"<\/p>\n

\u8981\u5728Python\u4e2d\u6dfb\u52a0\u5b57\u5178\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\uff1a\u8d4b\u503c\u8bed\u53e5\u3001update()\u65b9\u6cd5\u3001\u5b57\u5178\u89e3\u5305\u3002<\/strong>\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u5c06\u8be6\u7ec6\u63cf\u8ff0\u5982\u4f55\u4f7f\u7528\u8d4b\u503c\u8bed\u53e5\u6765\u6dfb\u52a0\u5b57\u5178\u6570\u636e\u3002\u901a\u8fc7\u8d4b\u503c\u8bed\u53e5\uff0c\u4f60\u53ef\u4ee5\u76f4\u63a5\u4e3a\u5b57\u5178\u6dfb\u52a0\u65b0\u7684\u952e\u503c\u5bf9\uff0c\u6216\u8005\u66f4\u65b0\u5df2\u6709\u7684\u952e\u503c\u5bf9\u3002\u8fd9\u79cd\u65b9\u6cd5\u7b80\u5355\u76f4\u89c2\uff0c\u975e\u5e38\u9002\u5408\u5728\u5904\u7406\u5c0f\u89c4\u6a21\u5b57\u5178\u6570\u636e\u65f6\u4f7f\u7528\u3002\u4ee5\u4e0b\u662f\u5177\u4f53\u7684\u64cd\u4f5c\u6b65\u9aa4\uff1a<\/p>\n<\/p>\n

\u9996\u5148\uff0c\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u5b57\u5178person<\/code>\uff0c\u5176\u4e2d\u5305\u542b\u4e00\u4e9b\u57fa\u672c\u4fe1\u606f\uff1a<\/p>\n<\/p>\n

person = {<\/p>\n
    'name': 'Alice',<\/p>\n
    'age': 30<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5982\u679c\u6211\u4eec\u60f3\u8981\u4e3a\u8fd9\u4e2a\u5b57\u5178\u6dfb\u52a0\u4e00\u4e2a\u65b0\u7684\u952e\u503c\u5bf9\uff0c\u6bd4\u5982\u8bf4\u6dfb\u52a0\u4e00\u4e2a\u65b0\u7684\u952e'city'<\/code>\uff0c\u5e76\u5c06\u5176\u503c\u8bbe\u4e3a'New York'<\/code>\uff0c\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u5982\u4e0b\u8d4b\u503c\u8bed\u53e5\uff1a<\/p>\n<\/p>\n
person['city'] = 'New York'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u6b64\u65f6\uff0cperson<\/code>\u5b57\u5178\u5c06\u66f4\u65b0\u4e3a\uff1a<\/p>\n<\/p>\n
{<\/p>\n
    'name': 'Alice',<\/p>\n
    'age': 30,<\/p>\n
    'city': 'New York'<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u8d4b\u503c\u8bed\u53e5\uff0c\u4f60\u4e0d\u4ec5\u53ef\u4ee5\u6dfb\u52a0\u65b0\u7684\u952e\u503c\u5bf9\uff0c\u8fd8\u53ef\u4ee5\u66f4\u65b0\u5df2\u6709\u7684\u952e\u503c\u5bf9\u3002\u4f8b\u5982\uff0c\u5982\u679c\u60f3\u66f4\u65b0age<\/code>\u7684\u503c\u4e3a31\uff0c\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\uff1a<\/p>\n<\/p>\n
person['age'] = 31<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u66f4\u65b0\u540e\u7684\u5b57\u5178\u4e3a\uff1a<\/p>\n<\/p>\n
{<\/p>\n
    'name': 'Alice',<\/p>\n
    'age': 31,<\/p>\n
    'city': 'New York'<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528\u8d4b\u503c\u8bed\u53e5\u66f4\u65b0\u5b57\u5178\u7684\u7279\u70b9\u662f\u7b80\u5355\u76f4\u63a5\uff0c\u9002\u5408\u5728\u9700\u8981\u6dfb\u52a0\u6216\u66f4\u65b0\u5355\u4e2a\u952e\u503c\u5bf9\u65f6\u4f7f\u7528\u3002<\/strong><\/p>\n<\/p>\n
\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u6df1\u5165\u63a2\u8ba8Python\u4e2d\u6dfb\u52a0\u5b57\u5178\u6570\u636e\u7684\u5176\u4ed6\u65b9\u6cd5\u548c\u76f8\u5173\u6280\u5de7\u3002<\/p>\n<\/p>\n
\u4e00\u3001\u8d4b\u503c\u8bed\u53e5<\/p>\n<\/p>\n
\u8d4b\u503c\u8bed\u53e5\u662fPython\u4e2d\u6700\u5e38\u7528\u7684\u65b9\u5f0f\u4e4b\u4e00\uff0c\u7528\u4e8e\u5411\u5b57\u5178\u6dfb\u52a0\u65b0\u7684\u952e\u503c\u5bf9\u6216\u66f4\u65b0\u73b0\u6709\u7684\u952e\u503c\u5bf9\u3002\u4f7f\u7528\u8d4b\u503c\u8bed\u53e5\u7684\u4e3b\u8981\u4f18\u70b9\u5728\u4e8e\u5176\u7b80\u5355\u76f4\u63a5\uff0c\u7279\u522b\u9002\u5408\u5904\u7406\u5c0f\u89c4\u6a21\u7684\u6570\u636e\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
\u4f8b\u5982\uff0c\u8003\u8651\u4e00\u4e2a\u5b57\u5178inventory<\/code>\uff0c\u5176\u4e2d\u5b58\u50a8\u4e86\u4e00\u4e9b\u5546\u54c1\u53ca\u5176\u6570\u91cf\uff1a<\/p>\n<\/p>\n
inventory = {<\/p>\n
    'apples': 10,<\/p>\n
    'bananas': 5<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5982\u679c\u9700\u8981\u6dfb\u52a0\u65b0\u7684\u5546\u54c1'oranges'<\/code>\u5e76\u8bbe\u7f6e\u5176\u6570\u91cf\u4e3a20<\/code>\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8d4b\u503c\u8bed\u53e5\uff1a<\/p>\n<\/p>\n
inventory['oranges'] = 20<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u6b64\u65f6\uff0c\u5b57\u5178inventory<\/code>\u5c06\u66f4\u65b0\u4e3a\uff1a<\/p>\n<\/p>\n
{<\/p>\n
    'apples': 10,<\/p>\n
    'bananas': 5,<\/p>\n
    'oranges': 20<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u540c\u6837\uff0c\u5982\u679c\u9700\u8981\u66f4\u65b0'apples'<\/code>\u7684\u6570\u91cf\u4e3a15<\/code>\uff0c\u53ef\u4ee5\u76f4\u63a5\u8fdb\u884c\u8d4b\u503c\uff1a<\/p>\n<\/p>\n
inventory['apples'] = 15<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8d4b\u503c\u8bed\u53e5\u7684\u4f18\u52bf\u5728\u4e8e\u5176\u7b80\u6d01\u548c\u6613\u4e8e\u7406\u89e3\uff0c\u4f46\u5982\u679c\u9700\u8981\u8fdb\u884c\u6279\u91cf\u66f4\u65b0\uff0c\u53ef\u80fd\u6548\u7387\u4e0d\u5982\u5176\u4ed6\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
\u4e8c\u3001UPDATE()\u65b9\u6cd5<\/p>\n<\/p>\n
update()<\/code>\u65b9\u6cd5\u662fPython\u5b57\u5178\u5bf9\u8c61\u63d0\u4f9b\u7684\u4e00\u4e2a\u5185\u7f6e\u65b9\u6cd5\uff0c\u7528\u4e8e\u6279\u91cf\u66f4\u65b0\u5b57\u5178\u4e2d\u7684\u952e\u503c\u5bf9\u3002\u4e0e\u8d4b\u503c\u8bed\u53e5\u76f8\u6bd4\uff0cupdate()<\/code>\u65b9\u6cd5\u66f4\u9002\u5408\u5728\u9700\u8981\u540c\u65f6\u66f4\u65b0\u591a\u4e2a\u952e\u503c\u5bf9\u65f6\u4f7f\u7528\u3002<\/p>\n<\/p>\n
\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u5b57\u5178student_scores<\/code>\uff0c\u5176\u4e2d\u8bb0\u5f55\u4e86\u4e00\u4e9b\u5b66\u751f\u7684\u6210\u7ee9\uff1a<\/p>\n<\/p>\n
student_scores = {<\/p>\n
    'Alice': 85,<\/p>\n
    'Bob': 90<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5982\u679c\u9700\u8981\u540c\u65f6\u6dfb\u52a0\u6216\u66f4\u65b0\u591a\u4e2a\u5b66\u751f\u7684\u6210\u7ee9\uff0c\u53ef\u4ee5\u4f7f\u7528update()<\/code>\u65b9\u6cd5\uff1a<\/p>\n<\/p>\n
student_scores.update({'Charlie': 95, 'Alice': 88})<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u6267\u884c\u4e0a\u8ff0\u4ee3\u7801\u540e\uff0c\u5b57\u5178student_scores<\/code>\u5c06\u66f4\u65b0\u4e3a\uff1a<\/p>\n<\/p>\n
{<\/p>\n
    'Alice': 88,<\/p>\n
    'Bob': 90,<\/p>\n
    'Charlie': 95<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
update()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u63a5\u53d7\u53e6\u4e00\u4e2a\u5b57\u5178\u4f5c\u4e3a\u53c2\u6570\uff0c\u4e5f\u53ef\u4ee5\u63a5\u53d7\u53ef\u8fed\u4ee3\u7684\u952e\u503c\u5bf9\u5e8f\u5217\uff0c\u5982\u5217\u8868\u6216\u5143\u7ec4\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u5b57\u5178\u89e3\u5305<\/p>\n<\/p>\n
\u5b57\u5178\u89e3\u5305\u662fPython 3.5\u5f15\u5165\u7684\u4e00\u79cd\u65b0\u7279\u6027\uff0c\u5141\u8bb8\u5728\u521b\u5efa\u6216\u66f4\u65b0\u5b57\u5178\u65f6\u4f7f\u7528<\/code>\u64cd\u4f5c\u7b26\u5c06\u591a\u4e2a\u5b57\u5178\u5408\u5e76\u3002\u5b57\u5178\u89e3\u5305\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u6d01\u7684\u8bed\u6cd5\u6765\u5408\u5e76\u591a\u4e2a\u5b57\u5178\uff0c\u7279\u522b\u662f\u5728\u9700\u8981\u540c\u65f6\u5904\u7406\u591a\u4e2a\u6570\u636e\u6e90\u65f6\u663e\u5f97\u5c24\u4e3a\u6709\u7528\u3002<\/p>\n<\/p>\n
\u8003\u8651\u4e24\u4e2a\u5b57\u5178dict1<\/code>\u548cdict2<\/code>\uff1a<\/p>\n<\/p>\n
dict1 = {'a': 1, 'b': 2}<\/p>\n
dict2 = {'b': 3, 'c': 4}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5982\u679c\u9700\u8981\u5408\u5e76\u8fd9\u4e24\u4e2a\u5b57\u5178\uff0c\u53ef\u4ee5\u4f7f\u7528\u5b57\u5178\u89e3\u5305\uff1a<\/p>\n<\/p>\n
merged_dict = {<strong>dict1, <\/strong>dict2}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u7ed3\u679cmerged_dict<\/code>\u4e3a\uff1a<\/p>\n<\/p>\n
{<\/p>\n
    'a': 1,<\/p>\n
    'b': 3,<\/p>\n
    'c': 4<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0cdict2<\/code>\u4e2d\u7684\u952e'b'<\/code>\u8986\u76d6\u4e86dict1<\/code>\u4e2d\u7684\u952e'b'<\/code>\u3002\u5b57\u5178\u89e3\u5305\u7684\u4f18\u70b9\u5728\u4e8e\u5176\u7b80\u6d01\u6027\u548c\u76f4\u63a5\u6027\uff0c\u9002\u5408\u5728\u6570\u636e\u5408\u5e76\u7684\u573a\u5408\u4f7f\u7528\u3002<\/p>\n<\/p>\n
\u56db\u3001SETDEFAULT()\u65b9\u6cd5<\/p>\n<\/p>\n
setdefault()<\/code>\u65b9\u6cd5\u662fPython\u5b57\u5178\u7684\u53e6\u4e00\u4e2a\u5185\u7f6e\u65b9\u6cd5\uff0c\u7528\u4e8e\u83b7\u53d6\u6307\u5b9a\u952e\u7684\u503c\uff0c\u5982\u679c\u952e\u4e0d\u5b58\u5728\uff0c\u5219\u5c06\u8be5\u952e\u8bbe\u4e3a\u6307\u5b9a\u7684\u9ed8\u8ba4\u503c\u3002\u8fd9\u79cd\u65b9\u6cd5\u5728\u5904\u7406\u5b57\u5178\u65f6\u63d0\u4f9b\u4e86\u4e00\u79cd\u4f18\u96c5\u7684\u65b9\u5f0f\u6765\u786e\u4fdd\u5b57\u5178\u4e2d\u67d0\u4e2a\u952e\u7684\u5b58\u5728\u3002<\/p>\n<\/p>\n
\u8003\u8651\u4e00\u4e2a\u5b57\u5178config<\/code>\uff0c\u5176\u4e2d\u5b58\u50a8\u4e86\u4e00\u4e9b\u914d\u7f6e\u9879\uff1a<\/p>\n<\/p>\n
config = {<\/p>\n
    'host': 'localhost',<\/p>\n
    'port': 8080<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5982\u679c\u9700\u8981\u786e\u4fdd\u5b57\u5178\u4e2d\u5b58\u5728\u67d0\u4e2a\u952e'timeout'<\/code>\uff0c\u5e76\u5c06\u5176\u9ed8\u8ba4\u503c\u8bbe\u7f6e\u4e3a30<\/code>\uff0c\u53ef\u4ee5\u4f7f\u7528setdefault()<\/code>\u65b9\u6cd5\uff1a<\/p>\n<\/p>\n
config.setdefault('timeout', 30)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u6b64\u65f6\uff0c\u5b57\u5178config<\/code>\u5c06\u66f4\u65b0\u4e3a\uff1a<\/p>\n<\/p>\n
{<\/p>\n
    'host': 'localhost',<\/p>\n
    'port': 8080,<\/p>\n
    'timeout': 30<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5982\u679c\u952e\u5df2\u7ecf\u5b58\u5728\uff0c\u90a3\u4e48setdefault()<\/code>\u65b9\u6cd5\u4e0d\u4f1a\u6539\u53d8\u5176\u503c\u3002\u4f8b\u5982\uff0c\u5982\u679c\u5b57\u5178config<\/code>\u4e2d\u5df2\u7ecf\u6709\u952e'port'<\/code>\uff0c\u90a3\u4e48\uff1a<\/p>\n<\/p>\n
config.setdefault('port', 9090)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e0d\u4f1a\u6539\u53d8'port'<\/code>\u7684\u503c\uff0c\u5b57\u5178\u4ecd\u4e3a\uff1a<\/p>\n<\/p>\n
{<\/p>\n
    'host': 'localhost',<\/p>\n
    'port': 8080,<\/p>\n
    'timeout': 30<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e94\u3001\u4ece\u5176\u4ed6\u6570\u636e\u7ed3\u6784\u8f6c\u6362<\/p>\n<\/p>\n
\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u5c06\u5176\u4ed6\u6570\u636e\u7ed3\u6784\u8f6c\u6362\u4e3a\u5b57\u5178\u6765\u6dfb\u52a0\u6570\u636e\u3002\u5e38\u89c1\u7684\u8f6c\u6362\u65b9\u5f0f\u5305\u62ec\u4ece\u5217\u8868\u3001\u5143\u7ec4\u6216\u96c6\u5408\u8f6c\u6362\u3002\u6b64\u65b9\u6cd5\u7279\u522b\u9002\u5408\u5728\u6570\u636e\u6765\u6e90\u591a\u6837\u5316\u7684\u60c5\u51b5\u4e0b\u4f7f\u7528\u3002<\/p>\n<\/p>\n
\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u5305\u542b\u952e\u503c\u5bf9\u7684\u5217\u8868data_list<\/code>\uff1a<\/p>\n<\/p>\n
data_list = [('key1', 'value1'), ('key2', 'value2')]<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u53ef\u4ee5\u901a\u8fc7\u5c06\u5176\u8f6c\u6362\u4e3a\u5b57\u5178\u6765\u6dfb\u52a0\u6570\u636e\uff1a<\/p>\n<\/p>\n
data_dict = dict(data_list)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u7ed3\u679cdata_dict<\/code>\u4e3a\uff1a<\/p>\n<\/p>\n
{<\/p>\n
    'key1': 'value1',<\/p>\n
    'key2': 'value2'<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u540c\u6837\uff0c\u5bf9\u4e8e\u5143\u7ec4\u6216\u96c6\u5408\uff0c\u4e5f\u53ef\u4ee5\u8fdb\u884c\u7c7b\u4f3c\u7684\u8f6c\u6362\u3002<\/p>\n<\/p>\n
\u516d\u3001\u4f7f\u7528\u5b57\u5178\u63a8\u5bfc\u5f0f<\/p>\n<\/p>\n
\u5b57\u5178\u63a8\u5bfc\u5f0f\u662fPython\u4e2d\u4e00\u79cd\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u5141\u8bb8\u901a\u8fc7\u8868\u8fbe\u5f0f\u751f\u6210\u5b57\u5178\u3002\u5b57\u5178\u63a8\u5bfc\u5f0f\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u6d01\u800c\u4f18\u96c5\u7684\u65b9\u5f0f\u6765\u521b\u5efa\u548c\u66f4\u65b0\u5b57\u5178\uff0c\u5c24\u5176\u9002\u7528\u4e8e\u5728\u6570\u636e\u5904\u7406\u548c\u8f6c\u6362\u65f6\u4f7f\u7528\u3002<\/p>\n<\/p>\n
\u8003\u8651\u4e00\u4e2a\u5217\u8868keys<\/code>\u548c\u4e00\u4e2a\u5217\u8868values<\/code>\uff0c\u9700\u8981\u5c06\u5b83\u4eec\u7ec4\u5408\u6210\u4e00\u4e2a\u5b57\u5178\uff1a<\/p>\n<\/p>\n
keys = ['name', 'age', 'city']<\/p>\n
values = ['Alice', 30, 'New York']<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u53ef\u4ee5\u4f7f\u7528\u5b57\u5178\u63a8\u5bfc\u5f0f\u6765\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5b57\u5178\uff1a<\/p>\n<\/p>\n
new_dict = {keys[i]: values[i] for i in range(len(keys))}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u7ed3\u679cnew_dict<\/code>\u4e3a\uff1a<\/p>\n<\/p>\n
{<\/p>\n
    'name': 'Alice',<\/p>\n
    'age': 30,<\/p>\n
    'city': 'New York'<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5b57\u5178\u63a8\u5bfc\u5f0f\u63d0\u4f9b\u4e86\u4e00\u79cd\u7075\u6d3b\u7684\u65b9\u5f0f\u6765\u5904\u7406\u590d\u6742\u7684\u6570\u636e\u8f6c\u6362\u4efb\u52a1\u3002<\/p>\n<\/p>\n
\u4e03\u3001\u4f7f\u7528\u5faa\u73af\u6dfb\u52a0\u6570\u636e<\/p>\n<\/p>\n
\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u53ef\u80fd\u9700\u8981\u901a\u8fc7\u5faa\u73af\u6765\u904d\u5386\u67d0\u4e2a\u6570\u636e\u7ed3\u6784\uff0c\u5e76\u5c06\u5176\u5185\u5bb9\u9010\u4e00\u6dfb\u52a0\u5230\u5b57\u5178\u4e2d\u3002\u8fd9\u79cd\u65b9\u6cd5\u7279\u522b\u9002\u5408\u5728\u9700\u8981\u5bf9\u6570\u636e\u8fdb\u884c\u6761\u4ef6\u7b5b\u9009\u6216\u53d8\u6362\u65f6\u4f7f\u7528\u3002<\/p>\n<\/p>\n
\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u5305\u542b\u591a\u4e2a\u952e\u503c\u5bf9\u7684\u5217\u8868data<\/code>\uff0c\u9700\u8981\u5c06\u5176\u6dfb\u52a0\u5230\u5b57\u5178result<\/code>\u4e2d\uff1a<\/p>\n<\/p>\n
data = [('key1', 'value1'), ('key2', 'value2'), ('key3', 'value3')]<\/p>\n
result = {}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u53ef\u4ee5\u4f7f\u7528\u5faa\u73af\u6765\u5b9e\u73b0\uff1a<\/p>\n<\/p>\n
for key, value in data:<\/p>\n
    result[key] = value<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u7ed3\u679cresult<\/code>\u4e3a\uff1a<\/p>\n<\/p>\n
{<\/p>\n
    'key1': 'value1',<\/p>\n
    'key2': 'value2',<\/p>\n
    'key3': 'value3'<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u4f7f\u7528\u5faa\u73af\uff0c\u53ef\u4ee5\u5728\u6dfb\u52a0\u6570\u636e\u65f6\u8fdb\u884c\u989d\u5916\u7684\u5904\u7406\u6216\u5224\u65ad\u3002<\/p>\n<\/p>\n
\u516b\u3001\u4eceJSON\u6216\u5176\u4ed6\u683c\u5f0f\u52a0\u8f7d\u6570\u636e<\/p>\n<\/p>\n
\u5728\u73b0\u4ee3\u5e94\u7528\u4e2d\uff0c\u6570\u636e\u5e38\u5e38\u4ee5JSON\u7b49\u683c\u5f0f\u5b58\u50a8\u548c\u4f20\u8f93\u3002Python\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u5e93\u6765\u4ece\u8fd9\u4e9b\u683c\u5f0f\u4e2d\u89e3\u6790\u6570\u636e\u5e76\u6dfb\u52a0\u5230\u5b57\u5178\u4e2d\u3002\u5bf9\u4e8e\u5904\u7406\u590d\u6742\u6570\u636e\u7ed3\u6784\u6216\u4ece\u5916\u90e8\u6e90\u52a0\u8f7d\u6570\u636e\u65f6\uff0c\u8fd9\u79cd\u65b9\u6cd5\u5c24\u4e3a\u91cd\u8981\u3002<\/p>\n<\/p>\n
\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2aJSON\u5b57\u7b26\u4e32json_data<\/code>\uff1a<\/p>\n<\/p>\n
import json<\/p>\n
json_data = '{"name": "Alice", "age": 30, "city": "New York"}'<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u53ef\u4ee5\u4f7f\u7528json.loads()<\/code>\u65b9\u6cd5\u5c06\u5176\u89e3\u6790\u4e3a\u5b57\u5178\uff1a<\/p>\n<\/p>\n
data_dict = json.loads(json_data)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u7ed3\u679cdata_dict<\/code>\u4e3a\uff1a<\/p>\n<\/p>\n
{<\/p>\n
    'name': 'Alice',<\/p>\n
    'age': 30,<\/p>\n
    'city': 'New York'<\/p>\n
}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u53ef\u4ee5\u8f7b\u677e\u5730\u4eceJSON\u6216\u5176\u4ed6\u683c\u5f0f\u4e2d\u52a0\u8f7d\u6570\u636e\u5e76\u6dfb\u52a0\u5230\u5b57\u5178\u4e2d\u3002<\/p>\n<\/p>\n
\u603b\u7ed3<\/p>\n<\/p>\n
\u5728Python\u4e2d\uff0c\u6dfb\u52a0\u5b57\u5178\u6570\u636e\u7684\u65b9\u6cd5\u591a\u79cd\u591a\u6837\uff0c\u5305\u62ec\u8d4b\u503c\u8bed\u53e5\u3001update()<\/code>\u65b9\u6cd5\u3001\u5b57\u5178\u89e3\u5305\u3001setdefault()<\/code>\u65b9\u6cd5\u3001\u4ece\u5176\u4ed6\u6570\u636e\u7ed3\u6784\u8f6c\u6362\u3001\u5b57\u5178\u63a8\u5bfc\u5f0f\u3001\u4f7f\u7528\u5faa\u73af\u6dfb\u52a0\u6570\u636e\uff0c\u4ee5\u53ca\u4eceJSON\u6216\u5176\u4ed6\u683c\u5f0f\u52a0\u8f7d\u6570\u636e\u7b49\u3002\u6bcf\u79cd\u65b9\u6cd5\u90fd\u6709\u5176\u72ec\u7279\u7684\u4f18\u52bf\u548c\u9002\u7528\u573a\u666f\u3002\u6839\u636e\u5177\u4f53\u9700\u6c42\uff0c\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u6765\u5b9e\u73b0\u5b57\u5178\u6570\u636e\u7684\u6dfb\u52a0\u548c\u66f4\u65b0\uff0c\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u6548\u7387\u548c\u53ef\u8bfb\u6027\u3002\u901a\u8fc7\u5bf9\u8fd9\u4e9b\u65b9\u6cd5\u7684\u719f\u7ec3\u638c\u63e1\uff0c\u5f00\u53d1\u8005\u80fd\u591f\u66f4\u7075\u6d3b\u5730\u5904\u7406\u590d\u6742\u7684\u6570\u636e\u64cd\u4f5c\u4efb\u52a1\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python\u4e2d\u5411\u5b57\u5178\u4e2d\u6dfb\u52a0\u65b0\u7684\u952e\u503c\u5bf9\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u7b80\u5355\u7684\u8d4b\u503c\u64cd\u4f5c\u5411\u5b57\u5178\u4e2d\u6dfb\u52a0\u65b0\u7684\u952e\u503c\u5bf9\u3002\u53ea\u9700\u6307\u5b9a\u65b0\u952e\u5e76\u4e3a\u5176\u8d4b\u503c\uff0c\u4f8b\u5982\uff1amy_dict['new_key'] = 'new_value'<\/code>\u3002\u8fd9\u5c06\u4f1a\u5728\u5b57\u5178my_dict<\/code>\u4e2d\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6761\u76ee\uff0c\u952e\u4e3anew_key<\/code>\uff0c\u503c\u4e3anew_value<\/code>\u3002\u5982\u679cnew_key<\/code>\u5df2\u7ecf\u5b58\u5728\uff0c\u539f\u6709\u7684\u503c\u5c06\u88ab\u65b0\u7684\u503c\u8986\u76d6\u3002<\/p>\n
\u5982\u4f55\u4f7f\u7528update()\u65b9\u6cd5\u6279\u91cf\u6dfb\u52a0\u5b57\u5178\u6570\u636e\uff1f<\/strong>
\u4f7f\u7528update()<\/code>\u65b9\u6cd5\u53ef\u4ee5\u65b9\u4fbf\u5730\u5c06\u4e00\u4e2a\u5b57\u5178\u7684\u5185\u5bb9\u6dfb\u52a0\u5230\u53e6\u4e00\u4e2a\u5b57\u5178\u4e2d\u3002\u8fd9\u79cd\u65b9\u5f0f\u7279\u522b\u9002\u5408\u6279\u91cf\u6dfb\u52a0\u6570\u636e\u3002\u4f8b\u5982\uff1amy_dict.update({'key1': 'value1', 'key2': 'value2'})<\/code>\u3002\u8fd9\u6837\uff0cmy_dict<\/code>\u5c06\u4f1a\u5305\u542b\u65b0\u6dfb\u52a0\u7684\u952e\u503c\u5bf9\u3002\u5982\u679c\u5b58\u5728\u76f8\u540c\u7684\u952e\uff0c\u539f\u503c\u4e5f\u4f1a\u88ab\u66f4\u65b0\u3002<\/p>\n
\u5728Python\u5b57\u5178\u4e2d\u6dfb\u52a0\u5d4c\u5957\u5b57\u5178\u7684\u6700\u4f73\u65b9\u5f0f\u662f\u4ec0\u4e48\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u6dfb\u52a0\u5d4c\u5957\u5b57\u5178\u53ef\u4ee5\u901a\u8fc7\u7b80\u5355\u7684\u8d4b\u503c\u8fdb\u884c\u3002\u4f8b\u5982\uff0c\u5982\u679c\u8981\u5728\u5b57\u5178\u4e2d\u6dfb\u52a0\u4e00\u4e2a\u65b0\u7684\u5b57\u5178\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1amy_dict['nested'] = {'inner_key': 'inner_value'}<\/code>\u3002\u8fd9\u4f1a\u5728my_dict<\/code>\u4e2d\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u952enested<\/code>\uff0c\u5176\u503c\u4e3a\u4e00\u4e2a\u65b0\u7684\u5b57\u5178\u3002\u5982\u679c\u9700\u8981\u6dfb\u52a0\u591a\u4e2a\u952e\u503c\u5bf9\u5230\u8fd9\u4e2a\u5d4c\u5957\u5b57\u5178\uff0c\u53ef\u4ee5\u7ed3\u5408\u4f7f\u7528update()<\/code>\u65b9\u6cd5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u8981\u5728Python\u4e2d\u6dfb\u52a0\u5b57\u5178\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u51e0\u79cd\u65b9\u6cd5\uff1a\u8d4b\u503c\u8bed\u53e5\u3001update()\u65b9\u6cd5\u3001\u5b57\u5178\u89e3\u5305\u3002\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u5c06 […]","protected":false},"author":3,"featured_media":966245,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/966239"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=966239"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/966239\/revisions"}],"predecessor-version":[{"id":966247,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/966239\/revisions\/966247"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/966245"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=966239"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=966239"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=966239"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}