300以内的奇数 偶数 素数 合数答:259,261,263,265,267,269,271,273,275,277,279,281,283,285,287,289,291,293,295,297,299偶数:2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60,62,64,66,68,70,72,74,76,78,80,82,84,86,88,90,92,94,96,98,100,...