【人工智能Ⅰ】实验1：谓词表示法与产生式知识表示

dict = {}

count = 0

while 1:

    if count == 3:

        break

    item = input("please input your item:")

    site = input("please input your site:")

    if item != 'monkey' and item != 'box' and item != 'banana':

        print("input error")

    else:

        dict.setdefault(item, site)

        count += 1

print() # change lines

step = 1 #initialzie step

climb = 0

gain = 0

# if monkey is not at box site

if dict['monkey'] != dict['box']:

    result = "step"+str(step)+": move monkey to box"

    print(result,end=" ")

    print(dict['monkey']+"->"+dict['box'])

    dict['monkey']=dict['box']

    step += 1

# if box is not at banana site

if dict['box'] != dict['banana']:

    result = "step"+str(step)+": move box to banana"

    print(result,end=" ")

    print(dict['box']+"->"+dict['banana'])

    dict['box']=dict['banana']

    dict['monkey']=dict['banana']

    step += 1

# monkey climbs onto the box

if climb == 0:

    result = "step"+str(step)+": monkey climbs on the box"

    print(result,end=" ")

    print(dict['monkey']+"->"+dict['box'])

    step += 1

    climb = 1

# monkey jumps to get the banana

if climb == 1 and gain == 0:

    result = "step"+str(step)+": monkey jumps to get the banana"

    print(result,end=" ")

    print(dict['box']+"->"+dict['banana'])

    step += 1

    gain = 1

dict = {}

dict.setdefault(1, "有毛发")

dict.setdefault(2, "有奶")

dict.setdefault(3, "有羽毛")

dict.setdefault(4, "会飞")

dict.setdefault(5, "会生蛋")

dict.setdefault(6, "吃肉")

dict.setdefault(7, "犀利牙齿")

dict.setdefault(8, "有爪")

dict.setdefault(9, "眼向前方")

dict.setdefault(10, "有蹄")

dict.setdefault(11, "反刍")

dict.setdefault(12, "有黄褐色")

dict.setdefault(13, "有暗斑点")

dict.setdefault(14, "有黑色条纹")

dict.setdefault(15, "有长脖子")

dict.setdefault(16, "有长腿")

dict.setdefault(17, "不会飞")

dict.setdefault(18, "有黑白二色")

dict.setdefault(19, "会游泳")

dict.setdefault(20, "善飞")

mammal = 0  # 哺乳动物

bird = 0    # 鸟

meat = 0    # 食肉动物

foot = 0    # 蹄类动物

print(dict)

print("please later input features according to this directory")

feature = []

n = int(input("please input the total number of your features: "))

# add int() to convert str into int, or error will occur

for i in range(n):

    t = int(input("please input your current feature number: "))

    feature.append(t)

# hash features

hash = []

for i in range(21):

    hash.append(0)

for item in feature:

    hash[item]=1

# rules

result = ""

check = 0

# rule 1 2

if hash[1] == 1 or hash[2] == 1:

    mammal = 1

# rule 3 4

if hash[3] == 1 or (hash[4] == 1 and hash[5] == 1):

    bird = 1

# rule 5 6

if hash[6] == 1 or (hash[7] == 1 and hash[8] == 1 and hash[9] == 1):

    meat = 1

# rule 7 8

if mammal == 1 and (hash[10] == 1 or hash[11] == 1):

    foot = 1

# rule 9

if mammal == 1 and meat == 1 and hash[12] == 1 and hash[13] == 1:

    if check == 0:

        check = 1

        result = "豹"

# rule 10

if mammal == 1 and meat == 1 and hash[12] == 1 and hash[14] == 1:

    if check == 0:

        check = 1

        result = "虎"

# rule 11

if foot == 1 and hash[15] == 1 and hash[16] == 1 and hash[13] == 1:

    if check == 0:

        check = 1

        result = "长颈鹿"

# rule 12

if foot == 1 and hash[14] == 1:

    if check == 0:

        check = 1

        result = "斑马"

# rule 13

if bird == 1 and hash[17] == 1 and hash[15] == 1 and hash[16] == 1 and hash[18] == 1:

    if check == 0:

        check = 1

        result = "鸵鸟"

# rule 14

if bird == 1 and hash[17] == 1 and hash[19] == 1 and hash[18] == 1:

    if check == 0:

        check = 1

        result = "企鹅"

# rule 15

if bird == 1 and hash[20] == 1:

    if check == 0:

        check = 1

        result = "信天翁"

if check == 1:

    print("判断的结果是:"+result)

else:

    print("无法判断")

n = int(input("please input the total number of your features: "))

# add int() to convert str into int, or error will occur

for i in range(n):

    t = int(input("please input your current feature number: "))

    feature.append(t)