mongodb中的游标使用示例如下:
假设执行如下操作:
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db.XXX.remove();
db.XXX. insert ({ "name" : "BuleRiver1" , "age" :27});
db.XXX. insert ({ "name" : "BuleRiver2" , "age" :23});
db.XXX. insert ({ "name" : "BuleRiver3" , "age" :21});
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使用find()返回一个游标:
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var cursor = db.XXX.find();
while ( cursor .hasNext()) {
obj = cursor . next ();
print(obj. name );
}
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使用游标的forEach()循环遍历:
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cursor .forEach( function (x) {
print(x. name );
});
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