package public

import "fmt"

func PageNumParse(pageNum, pageSize, maxNum int64) (num, size int64, err error) {
	if pageNum < 1 {
		pageNum = 1
	}
	if pageSize < 1 {
		pageSize = 1
	}
	if maxNum > 0 && pageNum*pageSize > maxNum {
		err = fmt.Errorf("超出检索限制")
	}
	num = pageNum
	size = pageSize
	return
}