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MongoCommandCursor::deadChecks if there are results that have not yet been sent from the database 説明
public bool MongoCommandCursor::dead
( void
)
This method checks whether the MongoCommandCursor cursor has been exhausted and the database has no more results to send to the client. A cursor being "dead" does not necessarily mean that there are no more results available for iteration. パラメータこの関数にはパラメータはありません。 返り値
Returns 参考
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