mongoDB的Find详解、分页和排序、游标

1.指定返回的键 db.[documentName].find ({条件},{键指定}) 数据准备persons.json var persons = [{ name:"jim", age:25, email:"[email protected]", c:89,m:96,e:87, country:"USA", books:["JS","C++","EXTJS","MONGODB"] }, { n

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