{"id":162202,"date":"2020-09-30T22:46:19","date_gmt":"2020-09-30T14:46:19","guid":{"rendered":"http:\/\/4563.org\/?p=162202"},"modified":"2020-09-30T22:46:19","modified_gmt":"2020-09-30T14:46:19","slug":"mysql-%e8%a1%a8%e8%ae%be%e8%ae%a1-%e6%85%a2%e6%9f%a5%e8%af%a2%e6%b1%82%e8%a7%a3%ef%bc%8c%e8%af%a6%e7%bb%86%e5%9c%ba%e6%99%af%e8%a7%81%e6%ad%a3%e6%96%87","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=162202","title":{"rendered":"mysql \u8868\u8bbe\u8ba1\/\u6162\u67e5\u8be2\u6c42\u89e3\uff0c\u8be6\u7ec6\u573a\u666f\u89c1\u6b63\u6587"},"content":{"rendered":"
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mysql \u8868\u8bbe\u8ba1\/\u6162\u67e5\u8be2\u6c42\u89e3\uff0c\u8be6\u7ec6\u573a\u666f\u89c1\u6b63\u6587 <\/h1>\n

<\/p>\n

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\u8cc7\u6df1\u5927\u4f6c : nulIptr <\/span> <\/i> 0<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n
  CREATE TABLE `vehicle` (   `Id` char(36) NOT NULL COMMENT 'Id Guid',    `Dr` int(11) NOT NULL COMMENT '',   `OrganizationId` bigint(20) unsigned DEFAULT NULL,   `DeviceNo` varchar(20) DEFAULT NULL,   `LicensePlateNo` varchar(10) DEFAULT NULL,   `vin` varchar(50) DEFAULT NULL,   PRIMARY KEY (`Id`),    KEY `vehicle_vin_IDX` (`vin`,`Dr`,`OrganizationId`,`LicensePlateNo`) USING BTREE ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 ;    CREATE TABLE `trip` (   `Id` char(36) NOT NULL COMMENT '\u8bb0\u5f55 Id',   `Vin` varchar(50) NOT NULL COMMENT '\u8f66\u8f86 vin',   `EndTime` datetime NOT NULL COMMENT '\u884c\u7a0b\u7ed3\u675f\u65f6\u95f4',      -- \u8fd8\u6709\u5176\u4f59\u4e8c\u5341\u4e2a\u5b57\u6bb5   PRIMARY KEY (`Id`),   KEY `trip_Vin_IDX` (`Vin`,`EndTime`) USING BTREE ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='\u884c\u7a0b\u6570\u636e\u660e\u7ec6';   select   v.OrganizationId, v.Vin, v.LicensePlateNo,s.* from   vehicle `v`  join trip `s` on   `s`.`Vin` = `v`.`Vin`  where   v.dr = 0    and v.OrganizationId between 10000000000000000 and 19999999999999999 order by  EndTime  desc limit 0, 10 <\/code><\/pre>\n
\u5148\u4e0a sql \u8bed\u53e5 \u4e1a\u52a1\u573a\u666f\u662f\u8f66\u8f86\u8868\u5927\u6982\u5b58\u4e86\u51e0\u767e\u8f86\u8f66\uff0c\u884c\u7a0b\u8ddf\u8f66\u8f86\u662f\u591a\u5bf9\u4e00\u7684\u5173\u7cfb\uff0ctrip \u8868\u6709 20w \u6761\u6570\u636e\uff0c\u8fd8\u5728\u6301\u7eed\u589e\u957f\u3002\u3002 OrganizationId \u4e3a\u4e86\u517c\u5bb9\u7ec4\u7ec7\u7ed3\u6784\u5c42\u7ea7\u5173\u7cfb\uff0c\u4e0a\u7ea7\u90e8\u95e8\u80fd\u770b\u5230\u4e0b\u7ea7\u90e8\u95e8\u7684\u6570\u636e\uff0c\u8bbe\u8ba1\u6210 18 \u4f4d 10 \u8fdb\u5236\u6570\u5b57\uff0c\u4ece\u9ad8\u4f4d\u8d77\u6bcf 2 \u4f4d\u7b97\u4e00\u4e2a\u5c42\u7ea7\uff0c\u6700\u591a 9 \u7ea7\uff0c\u67e5\u8be2\u7684\u65f6\u5019\u5c31\u662f\u4e0a\u9762 select \u8bed\u53e5\u8fd9\u6837<\/p>\n
\u4f46\u95ee\u9898\u662f\u6709\u4e86\u8303\u56f4\u67e5\u8be2\u6392\u5e8f\u4f3c\u4e4e\u5c31\u8d70\u4e0d\u4e86\u7d22\u5f15\u4e86\uff0c\u73b0\u5728\u8fd9\u4e2a\u67e5\u8be2\u8981 10 \u79d2\u5de6\u53f3\uff0c\u8be5\u600e\u4e48\u4f18\u5316\u5462\u3002<\/p>\n<\/p><\/div>\n
 \u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (16<\/span>)        <\/div>\n
 <\/div>\n<\/p><\/div>\n<\/p><\/div>\n
    \n
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     \u8cc7\u6df1\u5927\u4f6c : shenjinpeng <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 20w \u6570\u636e x \u51e0\u767e\u8f86\u8f66, \u8fd9\u4e48\u70b9\u6570\u636e\u8981 10s , \u611f\u89c9\u4e0d\u592a\u5bf9 . \u5e94\u8be5\u662f Vin \u5b57\u6bb5\u7684\u95ee\u9898, between \u53ea\u6709\u51e0\u767e\u6761\u6570\u636e, \u6709\u6ca1\u6709\u7d22\u5f15\u5f71\u54cd\u4e0d\u5927 . \u5e16\u4e2a sql \u6267\u884c\u8ba1\u5212\u770b\u770b                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : linuxvalue <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u770b\u8fd9\u4e2a\u547d\u540d\u597d\u96be\u53d7 \u5927\u5c0f\u5199\u4e71\u7528 \u6beb\u65e0\u89c4\u8303                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : huntcool001 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 explain ANALYZE select
     v.OrganizationId, v.Vin, v.LicensePlateNo,s.* from
     vehicle `v`
     join trip `s` on
     `s`.`Vin` = `v`.`Vin`
     where
     v.dr = 0
     and v.OrganizationId between 10000000000000000 and 19999999999999999
    order by
     EndTime desc
    limit 0,
    10<\/p>\n
    \u628a\u8fd9\u4e2a\u7ed3\u679c\u8d34\u4e00\u4e0b                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : huntcool001 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u8fd9\u4e2a\u662f\u8d70\u4e86\u7d22\u5f15\u7684, \u6211\u731c\u662f\u6700\u540e\u6392\u5e8f\u5f15\u8d77\u7684\u4e34\u65f6\u6587\u4ef6\u8017\u65f6\u592a\u957f\u4e86. \u8981\u770b\u4e00\u4e0b\u6267\u884c\u65f6\u95f4\u624d\u77e5\u9053.                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : CodeCodeStudy <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u5efa\u8bae\uff1a
    1 \u3001\u5b57\u6bb5\u540d\u7528\u4e0b\u5212\u7ebf\u5206\u9694\uff0c\u800c\u4e0d\u662f\u7528\u5927\u5199\u9a7c\u5cf0\uff1b
    2 \u3001\u4e3b\u952e\u7528\u81ea\u589e\u7684 INT UNSIGNED\uff0c\u800c\u4e0d\u662f CHAR(36) \uff1b
    3 \u3001\u5b57\u6bb5\u5c3d\u53ef\u80fd\u5730\u7528 NOT NULL \uff1b
    4 \u3001vehicle \u8868\u7684\u522b\u540d\u65e2\u7136\u53eb\u4e86 v\uff0c\u90a3\u4e48 trip \u8868\u7684\u522b\u540d\u80fd\u4e0d\u80fd\u4e0d\u8981\u53eb s\uff0c\u53eb t \u662f\u4e0d\u662f\u66f4\u597d\u4e00\u4e9b\uff1f
    5 \u3001OrganizationId \u5b57\u6bb5\u80fd\u4e0d\u80fd\u4e0d\u8981\u90a3\u4e48\u5927\uff1f\u7ec4\u7ec7\u7ed3\u6784\u5e94\u91cd\u65b0\u8bbe\u8ba1\uff1b
    6 \u3001trip \u8868\u7684 Vin \u5b57\u6bb5\u52a0\u4e0a\u7d22\u5f15\uff0c\u6700\u597d trip \u8868\u5b58 vehicle \u8868\u7684\u81ea\u589e\u7684\u4e3b\u952e\u4f5c\u4e3a\u5173\u8054\u7684\u6761\u4ef6\uff0cON \u7684\u65f6\u5019 INT \u603b\u6bd4 VARCHAR \u597d\uff1b
    7 \u3001trip \u8868\u7684 EndTime \u5b57\u6bb5\u7684\u987a\u5e8f\u662f\u4e0d\u662f\u90fd\u8ddf\u63d2\u5165\u7684\u987a\u5e8f\u4e00\u81f4\uff1f\u90fd\u4e00\u81f4\u7684\u8bdd\uff0c\u6392\u5e8f\u7684\u65f6\u5019\u53ef\u4ee5\u4f7f\u7528\u81ea\u589e\u7684\u4e3b\u952e\u4ee3\u66ff\uff1b
    8 \u3001vehicle \u8868\u624d\u51e0\u767e\u6761\u6570\u636e\u7684\u8bdd\uff0c\u4e3a\u4ec0\u4e48\u8981\u7528 `vehicle_vin_IDX` (`vin`,`Dr`,`OrganizationId`,`LicensePlateNo`) \u505a\u7d22\u5f15\uff1f                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : xx6412223 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 order by \u6ca1\u7528\u4e0a\u7d22\u5f15\u3002\u628a order by \u53bb\u6389\u8bd5\u8bd5                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : CodeCodeStudy <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 9 \u3001\u5148\u7528 EXPLAIN \u770b\u4e00\u4e0b\u662f\u4e0d\u662f\u6709 Using filesort \u6216 Using temporary \uff1b
    10 \u3001\u4e00\u4e2a\u8868\u5f88\u5c0f\uff0c\u53e6\u4e00\u4e2a\u5f88\u5927\u7684\u8bdd\uff0c\u53ef\u4ee5\u8003\u8651\u5355\u72ec\u67e5\u8be2\uff0c\u7136\u540e\u5728\u7a0b\u5e8f\u91cc\u5904\u7406\uff1b                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u8cc7\u6df1\u5927\u4f6c : sanggao <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u4e0a\u8001\u54e5\u8bf4\u51fa\u4e86\u6211\u7684\u5fc3\u91cc\u8bdd                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : nulIptr <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @shenjinpeng 
    @huntcool001 
    “` json<\/p>\n
    {
     “version”: “json”,
     “signature”: “MySQL Connector Java”,
     “date”: “2020-09-28T13:58:48.103781”,
     “sql”: “selectrnttv.OrganizationId, v.Vin, v.LicensePlateNo,s.*tfromrnttvehicle `v`rntjoin trip `s` onrntt`s`.`Vin` u003d `v`.`Vin`rntwherernttv.dr u003d 0rntt and v.OrganizationId between 10000000000000000 and 19999999999999999rnorder byrntEndTime descrnlimit 0,rn10”,
     “root”: [
     {
     “name”: “”,
     “kind”: “Node”,
     “type”: “select”,
     “cond”: “”,
     “desc”: “”,
     “attributes”: {
     “select_id”: “1”,
     “query_cost”: “3808.72”
     },
     “child”: [
     {
     “name”: “”,
     “kind”: “Node”,
     “type”: “ordering_operation”,
     “cond”: “”,
     “desc”: “”,
     “attributes”: {
     “using_temporary_table”: “true”,
     “using_filesort”: “true”,
     “sort_cost”: “1684.78”
     },
     “child”: [
     {
     “name”: “”,
     “kind”: “Node”,
     “type”: “nested_loop#1”,
     “cond”: “”,
     “desc”: “”,
     “attributes”: {},
     “child”: [
     {
     “name”: “v (index)”,
     “kind”: “Node”,
     “type”: “table”,
     “cond”: “”,
     “desc”: “”,
     “attributes”: {
     “table_name”: “v”,
     “access_type”: “index”,
     “possible_keys”: “[“vehicle_vin_IDX”]”,
     “key”: “vehicle_vin_IDX”,
     “used_key_parts”: “[“vin”,”Dr”,”OrganizationId”,”LicensePlateNo”]”,
     “key_length”: “259”,
     “rows_examined_per_scan”: “471”,
     “rows_produced_per_join”: “5”,
     “filtered”: “1.11”,
     “using_index”: “true”,
     “read_cost”: “101.15”,
     “eval_cost”: “1.05”,
     “prefix_cost”: “102.20”,
     “data_read_per_join”: “7K”,
     “used_columns”: “[“Id”,”Dr”,”OrganizationId”,”LicensePlateNo”,”vin”]”,
     “attached_condition”: “(((`v`.`Dr` u003d 0) and (`v`.`OrganizationId` between 10000000000000000 and 19999999999999999)) and (`v`.`vin` is not null))”
     }
     }
     ]
     },
     {
     “name”: “”,
     “kind”: “Node”,
     “type”: “nested_loop#2”,
     “cond”: “”,
     “desc”: “”,
     “attributes”: {},
     “child”: [
     {
     “name”: “s (ref)”,
     “kind”: “Node”,
     “type”: “table”,
     “cond”: “”,
     “desc”: “”,
     “attributes”: {
     “table_name”: “s”,
     “access_type”: “ref”,
     “possible_keys”: “[“trip_Vin_IDX”]”,
     “key”: “trip_Vin_IDX”,
     “used_key_parts”: “[“Vin”]”,
     “key_length”: “202”,
     “ref”: “[“orgidchange.v.vin”]”,
     “rows_examined_per_scan”: “321”,
     “rows_produced_per_join”: “1684”,
     “filtered”: “100.00”,
     “read_cost”: “1684.78”,
     “eval_cost”: “336.96”,
     “prefix_cost”: “2123.94”,
     “data_read_per_join”: “3M”,
     “used_columns”: “[“Id”,”Vin”,”LicensePlateNo”,”20 \u4e2a\u5176\u4ed6\u5b57\u6bb5”]”
     }
     }
     ]
     }
     ]
     }
     ]
     }
     ]
    }<\/p>\n
    “`
    \u4e0a\u9762\u662f dbeaver \u5bfc\u51fa\u7684\u6267\u884c\u8ba1\u5212\uff0c\u53ef\u80fd\u66f4\u8be6\u7ec6\u70b9\uff0c\u81ea\u5e26\u7684 explain \u8868\u683c\u641e\u4e86\u534a\u5929\u683c\u5f0f\u90fd\u4f1a\u4e71\uff0c\u597d\u96be\u7528\uff0cmysql \u7248\u672c\u662f 5.7\uff0c\u6ca1\u6709 explain ANALYZE                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : nulIptr <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @xx6412223 \u5bf9\u5440\uff0c\u53bb\u6389 orderby \u5c31\u662f 1 \u79d2\u5185\u4e86\uff0c\u4f46\u662f\u9700\u6c42\u8981\u6c42\u5206\u9875\u3002<\/p>\n
    @CodeCodeStudy \u6211\u81ea\u5df1\u559c\u6b22 sql \u5168\u5927\u5199\uff0c\u4f46\u662f\u5230\u73b0\u5728\u8fd9\u4e2a\u516c\u53f8\u5df2\u7ecf\u53d8\u6210\u8fd9\u4e2a\u73b0\u5728\u7684\u5f62\u72b6\u4e86\u3002\u3002\u3002
    \u5bf9\u4e8e\u7ec4\u7ec7 id \u5b57\u6bb5\u5982\u679c\u91cd\u65b0\u8bbe\u8ba1\u7684\u8bdd\u5e94\u8be5\u600e\u4e48\u641e\uff1f\u6838\u5fc3\u9700\u6c42\u5c31\u662f\u7236\u7ea7\u90e8\u95e8\u80fd\u770b\u5230\u5b50\u90e8\u95e8\u7684\u6570\u636e\uff0c\u5e73\u7ea7\u90e8\u95e8\u4e4b\u95f4\u4e92\u76f8\u9694\u79bb\u3002
    \u7528 vin \u505a\u5173\u8054\u597d\u50cf\u662f\u901a\u7528\u505a\u6cd5\uff0c\u636e\u8bf4 vin \u5c31\u7b49\u4e8e\u8f66\u8f86\u552f\u4e00\u6807\u8bc6\u3002
     `vehicle_vin_IDX` (`vin`,`Dr`,`OrganizationId`,`LicensePlateNo`)\u8fd9\u4e2a\u7d22\u5f15\u5c5e\u4e8e\u6709\u75c5\u4e71\u6295\u533b\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : xx6412223 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @nulIptr \u8fd9\u4e2a\u7b80\u5355\u5904\u7406\u5c31\u662f\u5206\u4e24\u6b65\u67e5\u8be2\uff0c\u5148\u627e\u51fa vehicle.vin \uff0c\u518d\u53bb trip \u91cc\u67e5\u8be2
    \u590d\u6742\u7684\u4e5f\u6709\uff0c\u4e0d\u8fc7\u6548\u76ca\u548c\u8fd9\u4e2a\u65b9\u6cd5\u6bd4\u4e0d\u5927\uff0c\u9700\u8981\u5f88\u591a\u8c03\u8bd5\uff1a\u7528 vin \u53bb\u505a\u57fa\u7840\u8868\uff0c\u53ef\u80fd\u9700\u8981 force index                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : xx6412223 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @xx6412223 \u4e0a\u9762\u6709\u9519\u522b\u5b57\uff0c\u662f\u7528 trip \u505a\u57fa\u51c6\u8868                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : huntcool001 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 set session sort_buffer_size = 6 *1024 * 1024;
    select
     v.Vin,s.EndTime from
     vehicle `v`
     join trip `s` on
     `s`.`Vin` = `v`.`Vin`
     where
     v.dr = 0
     and v.OrganizationId between 10000000000000000 and 19999999999999999
    order by
     EndTime desc
    limit 0,10;
    set session sort_buffer_size = 256*1024 <\/p>\n
    \u8fd9\u6837\u8bd5\u8bd5\u770b                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n
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     \u8cc7\u6df1\u5927\u4f6c : dog82 <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 \u8bbe\u8ba1\u6709\u95ee\u9898\uff0c\u6709\u5c42\u7ea7\u5173\u7cfb\uff0c\u7528 pid \u4e0d\u66f4\u5408\u9002\u4e48                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
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     \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : nulIptr <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 @dog82 \u5982\u679c\u4f60\u8bf4\u7684 pid \u6307\u7684\u662f parentid\uff0c\u90a3\u67e5\u8d77\u6765\u53ef\u592a\u8d39\u52b2\u4e86\uff0c\u6bd4\u8fd9\u4e2a\u8fd8\u8d39\u52b2                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n
    \n
    \n
     \u8cc7\u6df1\u5927\u4f6c : pkupyx <\/span>  <\/div>\n
     <\/i>            <\/span> <\/div>\n<\/p><\/div>\n
                                                                 explain \u770b\u4e00\u4e0b\u5457                                                            <\/div>\n<\/p><\/div>\n<\/li>\n
  • \n","protected":false},"excerpt":{"rendered":"
    mysql \u8868\u8bbe\u8ba1\/\u6162\u67e5\u8be2\u6c42\u89e3\uff0c\u8be6…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/162202"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=162202"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/162202\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=162202"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=162202"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=162202"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}