package utils

func GetPageRange(totalLen, pageNum, pageSize int) (start, end int) {
	if pageNum < 1 {
		pageNum = 1
	}
	if pageSize < 1 {
		pageSize = 10
	}
	start = (pageNum - 1) * pageSize
	if start > totalLen {
		start = totalLen
	}
	end = start + pageSize
	if end > totalLen {
		end = totalLen
	}
	return
}