package service import "strconv" /* 以下不等式是否成立: t1 - t2 >= diff */ func JudgeTimeDiff(t1 int64, t2 string, diff int64) bool { t2_i, _ := strconv.Atoi(t2) t2_i64 := int64(t2_i) return t1-t2_i64 >= diff } /* 以下不等式是否成立: q1 / q2 >= ratio */ func JudgeQuantityRatio(q1 float64, q2 float64, ratio float64) bool { return q1/q2 >= ratio }