EvStat::prevReturns the previous set of values returned by EvStat::attr 説明
public
void EvStat::prev()
Just like EvStat::attr , but returns the previous set of values. パラメータこの関数にはパラメータはありません。 戻り値Returns an array with the same structure as the array returned by EvStat::attr . The array contains previously detected values. 参考
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