MongoDB中find查询使用Perl兼容的正则表达式
perl中正则表达式简述：http://www.chinaunix.net/old_jh/25/159388.html
示例：
计算
安全
数据库
网络和加速
企业服务
> db.post.find()
{ "_id" : ObjectId("54a530c3ff0df3732bac1681"), "id" : 2, "name" : "joe", "age" : 30, "sex" : 1, "school" : "marry" }
{ "_id" : ObjectId("54a530c3ff0df3732bac1680"), "id" : 1, "name" : "joe", "age" : 30, "comments" : [ "test2", "test9", "test5" ], "sex" : 1, "school" : "marry" }
{ "_id" : ObjectId("54a9700e1b5afd45354fd086"), "id" : 3, "test3" : 3 }
{ "_id" : ObjectId("54a9701c1b5afd45354fd087"), "id" : 4, "test4" : 4 }
{ "_id" : ObjectId("54a970281b5afd45354fd088"), "id" : 5, "test5" : 5 }
{ "_id" : ObjectId("54a970351b5afd45354fd089"), "id" : 6, "test6" : 6 }
{ "_id" : ObjectId("54a970781b5afd45354fd08a"), "id" : 7, "test7" : 7 }
{ "_id" : ObjectId("54a970831b5afd45354fd08b"), "id" : 8, "test8" : 8 }
{ "_id" : ObjectId("54a970901b5afd45354fd08c"), "id" : 9, "test9" : 9 }
{ "_id" : ObjectId("54a9709c1b5afd45354fd08d"), "id" : 10, "test10" : 10 }
{ "_id" : ObjectId("54aa8a90652d8bdfa0566d34"), "id" : 11, "test10" : 11 }
> db.post.find({"school":/m/i})
{ "_id" : ObjectId("54a530c3ff0df3732bac1681"), "id" : 2, "name" : "joe", "age" : 30, "sex" : 1, "school" : "marry" }
{ "_id" : ObjectId("54a530c3ff0df3732bac1680"), "id" : 1, "name" : "joe", "age" : 30, "comments" : [ "test2", "test9", "test5" ], "sex" : 1, "school" : "marry" }/模式/i , 表示系统接收//中指定的模式；
亿速云「云服务器」，即开即用、新一代英特尔至强铂金CPU、三副本存储NVMe SSD云盘，价格低至29元/月。点击查看>>
免责声明：本站发布的内容（图片、视频和文字）以原创、转载和分享为主，文章观点不代表本网站立场，如果涉及侵权请联系站长邮箱：is@yisu.com进行举报，并提供相关证据，一经查实，将立刻删除涉嫌侵权内容。
