分组后取N条记录

CREATE CURSOR tt (班级 c(10),学号 c(10),成绩 n(3)) INSERT INTO tt VALUES ("01","X0101",86) INSERT INTO tt VALUES ("01","X0102",92) INSERT INTO tt VALUES ("01","X0103",72) INSERT INTO tt VALUES ("01","X0104",86) INSERT INTO tt VALUES ("02","X0201",75) INSERT INTO tt VALUES ("02","X0202",81) INSE...

孪生素数对

clear a=3 b=a ?"孪生素数对:" for i=3 to 100 step 2 x=0 for j=2 to i-1 if i/j=int(i/j) x=1 endif endfor if x=0 a=i if a-b=2 ?b,a endif b=a endif endfor
算法 | 2017-09-05 13:36 | 阅读 845 次 | 评论 0 条
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