dadaxixiyou

mongodb:replicaSets(mongo_test, ["127.0.0.1:27017", "127.0.0.1:27018", "127.0.0.1:27019", "127.0.0.1:27020", "127.0.0.1:27021"]), mongodb:connect(mongo_test), how i can find master mongo?

I'm still not sure how to use the cursor properly,can you give me example?