excel中如何统计一组数据中1连续出现3-5次的次数,不重复计算答:上图标记每个符合你要求的出来:=IF(B2=1,IF(A2=0,IF(SUM(B2:G2)>5,0,IF(SUM(B2:F2)>4,55,IF(SUM(B2:E2)>3,44,IF(SUM(B2:D2)=3,33,0))),0),0)上图计算每个是几个
...数组arr("a","b","d","d","c","d","d")中元素d中出现的次数...答:; if(j == -1) return indexes; indexes.push(j); return f(++j, indexes);}var arr = ["a","b","d","d","c","d","d"];var indexes = f(0, []);console.log("'d' 出现了:" + indexes.length + "次, 下标为:" + indexes)...