什么是api(应用程序接口）

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select * from tbl_Articles_data WHERE ArticleID=3109489 LIMIT 0,1
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SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1126571,1086081,1078286,156284,1067233,1119560,1085942,1086658,1105591,1081611,1052013,1117211,1130518,1077026,1087351,1076720,1099583,1090424,1062000,1086480,990402,1085800,1073588,1074618,1070934,1094219,1066612,1111504,1086312,1090032) ORDER BY field (ArticleID,1126571,1086081,1078286,156284,1067233,1119560,1085942,1086658,1105591,1081611,1052013,1117211,1130518,1077026,1087351,1076720,1099583,1090424,1062000,1086480,990402,1085800,1073588,1074618,1070934,1094219,1066612,1111504,1086312,1090032)