扑克牌中的顺子-算法

func isStraight(nums []int) bool {
    sort.Ints(nums)
    var jokerNum int8
    jokerNum = 0
    for i := 0; i < len(nums); i++ {
        if nums[i] == 0 {
            jokerNum++
            continue
        }
        if i > 0 && nums[i] == nums[i-1] {
            return false
        }
    }
    if nums[4]-nums[jokerNum] < 5 {
        return true
    }
    return false
}