python红楼梦注解本红楼梦python操作题

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bigrobin 2024-06-15 19:56:56

文章标签 python红楼梦注解本服务器键值对元组 文章分类 Python 后端开发

day05

1.请将列表中的每个元素通过 "_" 链接起来。

users = ['西游记','红楼梦','三国演义']

users = ['西游记','红楼梦','三国演义']
print("_".join(users))
users = ['西游记','红楼梦','三国演义']
print("_".join(users))

users = ['西游记','红楼梦','三国演义']
ls = ""
for i in users:
    ls = ls + i + "_"
print(ls.strip("_"))
users = ['西游记','红楼梦','三国演义']
ls = ""
for i in users:
    ls = ls + i + "_"
print(ls.strip("_"))

2.请将列表中的每个元素通过 "_" 链接起来。

users = ['申公豹','太乙真人',666,'渣渣辉']

users = ['申公豹','太乙真人',666,'渣渣辉']
ls = ""
for i in users:
    if type(i) == int:
        i = str(i)
    ls = ls + i + "_"
print(ls.strip("_"))
users = ['申公豹','太乙真人',666,'渣渣辉']
ls = ""
for i in users:
    if type(i) == int:
        i = str(i)
    ls = ls + i + "_"
print(ls.strip("_"))

3.请将元组 v1 = (11,22,33) 中的所有元素追加到列表 v2 = [44,55,66] 中。

v1 = (11, 22, 33)
v2 = [44,55,66]
v2.extend(v1)
print(v2)
v1 = (11, 22, 33)
v2 = [44,55,66]
v2.extend(v1)
print(v2)

4.请将元组 v1 = (11,22,33,44,55,66,77,88,99) 中的所有偶数索引位置的元素追加到列表

v3 = [44,55,66] 中。

v1 = (11,22,33,44,55,66,77,88,99)
v3 = [44,55,66]
for i in v1:
    if i % 2 == 0:
        v3.append(i)
print(v3)
v1 = (11,22,33,44,55,66,77,88,99)
v3 = [44,55,66]
for i in v1:
    if i % 2 == 0:
        v3.append(i)
print(v3)

5.将字典的键和值分别追加到 key_list 和 value_list 两个列表中

key_list = []
value_list = []
info = {'k1':'v1','k2':'v2','k3':'v3'}

key_list = []
value_list = []
info = {'k1':'v1','k2':'v2','k3':'v3'}
for i in info:
    key_list.append(i)
    value_list.append(info.get(i))
print(key_list)
print(value_list)
key_list = []
value_list = []
info = {'k1':'v1','k2':'v2','k3':'v3'}
for i in info:
    key_list.append(i)
    value_list.append(info.get(i))
print(key_list)
print(value_list)

6.字典dic = {'k1': "v1", "k2": "v2", "k3": [11,22,33]}

a. 请循环输出所有的key

dic = {'k1': "v1", "k2": "v2", "k3": [11,22,33]}
for i in dic:
    print(i)
dic = {'k1': "v1", "k2": "v2", "k3": [11,22,33]}
for i in dic:
    print(i)

b. 请循环输出所有的value

dic = {'k1': "v1", "k2": "v2", "k3": [11,22,33]}
for i in dic:
    print(dic.get(i))
dic = {'k1': "v1", "k2": "v2", "k3": [11,22,33]}
for i in dic:
    print(dic.get(i))

c. 请循环输出所有的key和value

dic = {'k1': "v1", "k2": "v2", "k3": [11,22,33]}
for i in dic:
    print(i)
    print(dic.get(i))
dic = {'k1': "v1", "k2": "v2", "k3": [11,22,33]}
for i in dic:
    print(i)
    print(dic.get(i))

d. 请在字典中添加一个键值对，"k4": "v4"，输出添加后的字典

dic = {'k1': "v1", "k2": "v2", "k3": [11,22,33]}
dic["k4"] = "v4"
print(dic)
dic = {'k1': "v1", "k2": "v2", "k3": [11,22,33]}
dic["k4"] = "v4"
print(dic)

e. 请在修改字典中 "k1" 对应的值为 "alex"，输出修改后的字典

dic = {'k1': "v1", "k2": "v2", "k3": [11,22,33]}
dic["k1"] = "alex"
print(dic)
dic = {'k1': "v1", "k2": "v2", "k3": [11,22,33]}
dic["k1"] = "alex"
print(dic)

f. 请在k3对应的值中追加一个元素 44，输出修改后的字典

dic = {'k1': "v1", "k2": "v2", "k3": [11,22,33]}
dic["k3"].append(44)
print(dic)
dic = {'k1': "v1", "k2": "v2", "k3": [11,22,33]}
dic["k3"].append(44)
print(dic)

g. 请在k3对应的值的第 1 个位置插入个元素 18，输出修改后的字典

dic = {'k1': "v1", "k2": "v2", "k3": [11,22,33]}
dic["k3"].insert(0, 18)
print(dic)

dic = {'k1': "v1", "k2": "v2", "k3": [11,22,33]}
dic["k3"].insert(0, 18)
print(dic)

7.有如下字典,请按照一下的需求对字典进行操作

av_catalog = {
"欧美":{
"www.宝元.com": ["很多免费的,世界最大的","质量一般"],
"www.alex.com": ["很多免费的,也很大","质量挺好"],
"oldboy.com": ["多是自拍,高质量图片很多","资源不多,更新慢"],
"hao222.com":["质量很高,真的很高","全部收费,屌丝请绕过"]
},
"日韩":{
"tokyo-hot":["质量怎样不清楚,个人已经不喜欢日韩范了","verygood"]
},
"大陆":{
"1024":["全部免费,真好,好人一生平安","服务器在国外,慢"]
}
}
a.给此 ["很多免费的,世界最大的","质量一般"]列表第二个位置插入一个元素：'量很大'。

av_catalog = {
"欧美":{
"www.宝元.com": ["很多免费的,世界最大的","质量一般"],
"www.alex.com": ["很多免费的,也很大","质量挺好"],
"oldboy.com": ["多是自拍,高质量图片很多","资源不多,更新慢"],
"hao222.com":["质量很高,真的很高","全部收费,屌丝请绕过"]
},
"日韩":{
"tokyo-hot":["质量怎样不清楚,个人已经不喜欢日韩范了","verygood"]
},
"大陆":{
"1024":["全部免费,真好,好人一生平安","服务器在国外,慢"]
}
}
av_catalog["欧美"]["www.宝元.com"].insert(1, "量很大")
print(av_catalog)
av_catalog = {
"欧美":{
"www.宝元.com": ["很多免费的,世界最大的","质量一般"],
"www.alex.com": ["很多免费的,也很大","质量挺好"],
"oldboy.com": ["多是自拍,高质量图片很多","资源不多,更新慢"],
"hao222.com":["质量很高,真的很高","全部收费,屌丝请绕过"]
},
"日韩":{
"tokyo-hot":["质量怎样不清楚,个人已经不喜欢日韩范了","verygood"]
},
"大陆":{
"1024":["全部免费,真好,好人一生平安","服务器在国外,慢"]
}
}
av_catalog["欧美"]["www.宝元.com"].insert(1, "量很大")
print(av_catalog)

b.将此 ["质量很高,真的很高","全部收费,屌丝请绕过"]列表的 "全部收费,屌丝请绕过" 删除。

av_catalog = {
"欧美":{
"www.宝元.com": ["很多免费的,世界最大的","质量一般"],
"www.alex.com": ["很多免费的,也很大","质量挺好"],
"oldboy.com": ["多是自拍,高质量图片很多","资源不多,更新慢"],
"hao222.com":["质量很高,真的很高","全部收费,屌丝请绕过"]
},
"日韩":{
"tokyo-hot":["质量怎样不清楚,个人已经不喜欢日韩范了","verygood"]
},
"大陆":{
"1024":["全部免费,真好,好人一生平安","服务器在国外,慢"]
}
}
del av_catalog["欧美"]["hao222.com"][1]
print(av_catalog)
av_catalog = {
"欧美":{
"www.宝元.com": ["很多免费的,世界最大的","质量一般"],
"www.alex.com": ["很多免费的,也很大","质量挺好"],
"oldboy.com": ["多是自拍,高质量图片很多","资源不多,更新慢"],
"hao222.com":["质量很高,真的很高","全部收费,屌丝请绕过"]
},
"日韩":{
"tokyo-hot":["质量怎样不清楚,个人已经不喜欢日韩范了","verygood"]
},
"大陆":{
"1024":["全部免费,真好,好人一生平安","服务器在国外,慢"]
}
}
del av_catalog["欧美"]["hao222.com"][1]
print(av_catalog)

c.将此["质量怎样不清楚,个人已经不喜欢日韩范了","verygood"]列表的 "verygood"全部变成大写。

av_catalog = {
"欧美":{
"www.宝元.com": ["很多免费的,世界最大的","质量一般"],
"www.alex.com": ["很多免费的,也很大","质量挺好"],
"oldboy.com": ["多是自拍,高质量图片很多","资源不多,更新慢"],
"hao222.com":["质量很高,真的很高","全部收费,屌丝请绕过"]
},
"日韩":{
"tokyo-hot":["质量怎样不清楚,个人已经不喜欢日韩范了","verygood"]
},
"大陆":{
"1024":["全部免费,真好,好人一生平安","服务器在国外,慢"]
}
}
av_catalog["日韩"]["tokyo-hot"][1] = av_catalog["日韩"]["tokyo-hot"][1].upper()
print(av_catalog)
av_catalog = {
"欧美":{
"www.宝元.com": ["很多免费的,世界最大的","质量一般"],
"www.alex.com": ["很多免费的,也很大","质量挺好"],
"oldboy.com": ["多是自拍,高质量图片很多","资源不多,更新慢"],
"hao222.com":["质量很高,真的很高","全部收费,屌丝请绕过"]
},
"日韩":{
"tokyo-hot":["质量怎样不清楚,个人已经不喜欢日韩范了","verygood"]
},
"大陆":{
"1024":["全部免费,真好,好人一生平安","服务器在国外,慢"]
}
}
av_catalog["日韩"]["tokyo-hot"][1] = av_catalog["日韩"]["tokyo-hot"][1].upper()
print(av_catalog)

d.给 '大陆' 对应的字典添加一个键值对 '1048' :['一天就封了']

av_catalog = {
"欧美":{
"www.宝元.com": ["很多免费的,世界最大的","质量一般"],
"www.alex.com": ["很多免费的,也很大","质量挺好"],
"oldboy.com": ["多是自拍,高质量图片很多","资源不多,更新慢"],
"hao222.com":["质量很高,真的很高","全部收费,屌丝请绕过"]
},
"日韩":{
"tokyo-hot":["质量怎样不清楚,个人已经不喜欢日韩范了","verygood"]
},
"大陆":{
"1024":["全部免费,真好,好人一生平安","服务器在国外,慢"]
}
}
av_catalog["大陆"]["1048"] = "一天就封了"
print(av_catalog)
av_catalog = {
"欧美":{
"www.宝元.com": ["很多免费的,世界最大的","质量一般"],
"www.alex.com": ["很多免费的,也很大","质量挺好"],
"oldboy.com": ["多是自拍,高质量图片很多","资源不多,更新慢"],
"hao222.com":["质量很高,真的很高","全部收费,屌丝请绕过"]
},
"日韩":{
"tokyo-hot":["质量怎样不清楚,个人已经不喜欢日韩范了","verygood"]
},
"大陆":{
"1024":["全部免费,真好,好人一生平安","服务器在国外,慢"]
}
}
av_catalog["大陆"]["1048"] = "一天就封了"
print(av_catalog)

e.删除这个键值对："oldboy.com": ["多是自拍,高质量图片很多","资源不多,更新慢"]

av_catalog = {
"欧美":{
"www.宝元.com": ["很多免费的,世界最大的","质量一般"],
"www.alex.com": ["很多免费的,也很大","质量挺好"],
"oldboy.com": ["多是自拍,高质量图片很多","资源不多,更新慢"],
"hao222.com":["质量很高,真的很高","全部收费,屌丝请绕过"]
},
"日韩":{
"tokyo-hot":["质量怎样不清楚,个人已经不喜欢日韩范了","verygood"]
},
"大陆":{
"1024":["全部免费,真好,好人一生平安","服务器在国外,慢"]
}
}
del av_catalog["欧美"]["oldboy.com"]
print(av_catalog)
av_catalog = {
"欧美":{
"www.宝元.com": ["很多免费的,世界最大的","质量一般"],
"www.alex.com": ["很多免费的,也很大","质量挺好"],
"oldboy.com": ["多是自拍,高质量图片很多","资源不多,更新慢"],
"hao222.com":["质量很高,真的很高","全部收费,屌丝请绕过"]
},
"日韩":{
"tokyo-hot":["质量怎样不清楚,个人已经不喜欢日韩范了","verygood"]
},
"大陆":{
"1024":["全部免费,真好,好人一生平安","服务器在国外,慢"]
}
}
del av_catalog["欧美"]["oldboy.com"]
print(av_catalog)

f.给此["全部免费,真好,好人一生平安","服务器在国外,慢"]列表的第一个元素，加上一句话：'可以爬下来'

av_catalog = {
"欧美":{
"www.宝元.com": ["很多免费的,世界最大的","质量一般"],
"www.alex.com": ["很多免费的,也很大","质量挺好"],
"oldboy.com": ["多是自拍,高质量图片很多","资源不多,更新慢"],
"hao222.com":["质量很高,真的很高","全部收费,屌丝请绕过"]
},
"日韩":{
"tokyo-hot":["质量怎样不清楚,个人已经不喜欢日韩范了","verygood"]
},
"大陆":{
"1024":["全部免费,真好,好人一生平安","服务器在国外,慢"]
}
}
av_catalog["大陆"]["1024"].insert(0, "可以爬下来")
print(av_catalog)
av_catalog = {
"欧美":{
"www.宝元.com": ["很多免费的,世界最大的","质量一般"],
"www.alex.com": ["很多免费的,也很大","质量挺好"],
"oldboy.com": ["多是自拍,高质量图片很多","资源不多,更新慢"],
"hao222.com":["质量很高,真的很高","全部收费,屌丝请绕过"]
},
"日韩":{
"tokyo-hot":["质量怎样不清楚,个人已经不喜欢日韩范了","verygood"]
},
"大陆":{
"1024":["全部免费,真好,好人一生平安","服务器在国外,慢"]
}
}
av_catalog["大陆"]["1024"].insert(0, "可以爬下来")
print(av_catalog)

8.请循环打印k2对应的值中的每个元素。

info = {
'k1':'v1',
'k2':[('alex'),('wupeiqi'),('oldboy')],
}

info = {
'k1':'v1',
'k2':[('alex'),('wupeiqi'),('oldboy')],
}

for i in info.get("k2"):
    print(i)
info = {
'k1':'v1',
'k2':[('alex'),('wupeiqi'),('oldboy')],
}

for i in info.get("k2"):
    print(i)

9.有字符串"k: 1|k1:2|k2:3 |k3 :4" 处理成字典 {'k':1,'k1':2,'k3':4}

写代码

lst = "k: 1|k1:2|k2:3 |k3 :4"
li = lst.split("|")
dic = {}
for i in li:
    a, b = i.split(":")
    dic[a] = int(b)
print(dic)
lst = "k: 1|k1:2|k2:3 |k3 :4"
li = lst.split("|")
dic = {}
for i in li:
    a, b = i.split(":")
    dic[a] = int(b)
print(dic)

10.有如下值 li= [11,22,33,44,55,77,88,99,90] ,将所有大于 66 的值保存至字典的第一个key对应的列表中，将小于 66 的值保存至第二个key对应的列表中。

result = {'k1':[],'k2':[]}

result = {'k1':[],'k2':[]}
li= [11,22,33,44,55,77,88,99,90]
for i in li:
    if i > 66:
        result["k1"].append(i)
    else:
        result["k2"].append(i)
print(result)
result = {'k1':[],'k2':[]}
li= [11,22,33,44,55,77,88,99,90]
for i in li:
    if i > 66:
        result["k1"].append(i)
    else:
        result["k2"].append(i)
print(result)

11.看代码写结果

v = {}
for index in range(10):
    v['users'] = index
print(v)

v = {}
for index in range(10):
    v['users'] = index
print(v)

{"users": 9}

12.输出商品列表，用户输入序号，显示用户选中的商品

"""
商品列表：
goods = [
{"name": "电脑", "price": 1999},
{"name": "鼠标", "price": 10},
{"name": "游艇", "price": 20},
{"name": "美女", "price": 998}
]
"""
商品列表：
goods = [
{"name": "电脑", "price": 1999},
{"name": "鼠标", "price": 10},
{"name": "游艇", "price": 20},
{"name": "美女", "price": 998}
]

要求:
1：页面显示序号 + 商品名称 + 商品价格，如：
1 电脑 1999
2 鼠标 10
...

goods = [
{"name": "电脑", "price": 1999},
{"name": "鼠标", "price": 10},
{"name": "游艇", "price": 20},
{"name": "美女", "price": 998}
]
for i in range(0, len(goods)):
    print(i + 1
          , goods[i]["name"], goods[i]["price"])

goods = [
{"name": "电脑", "price": 1999},
{"name": "鼠标", "price": 10},
{"name": "游艇", "price": 20},
{"name": "美女", "price": 998}
]
for i in range(0, len(goods)):
    print(i + 1
          , goods[i]["name"], goods[i]["price"])

2：用户输入选择的商品序号，然后打印商品名称及商品价格

goods = [
{"name": "电脑", "price": 1999},
{"name": "鼠标", "price": 10},
{"name": "游艇", "price": 20},
{"name": "美女", "price": 998}
]
num = int(input("请选择"))
lst = goods[num - 1]
print(num, lst["name"], lst["price"])
goods = [
{"name": "电脑", "price": 1999},
{"name": "鼠标", "price": 10},
{"name": "游艇", "price": 20},
{"name": "美女", "price": 998}
]
num = int(input("请选择"))
lst = goods[num - 1]
print(num, lst["name"], lst["price"])

3：如果用户输入的商品序号有误，则提示输入有误，并重新输入

goods = [
{"name": "电脑", "price": 1999},
{"name": "鼠标", "price": 10},
{"name": "游艇", "price": 20},
{"name": "美女", "price": 998}
]

while 1:
    num = (input("请选择"))
    if num.isdecimal() and len(goods):
        num = int(num)
        lst = goods[num - 1]
        print(num, lst["name"], lst["price"])
        break
goods = [
{"name": "电脑", "price": 1999},
{"name": "鼠标", "price": 10},
{"name": "游艇", "price": 20},
{"name": "美女", "price": 998}
]

while 1:
    num = (input("请选择"))
    if num.isdecimal() and len(goods):
        num = int(num)
        lst = goods[num - 1]
        print(num, lst["name"], lst["price"])
        break

4：用户输入Q或者q，退出程序。
"""

while 1:
    num = (input("请选择"))
    if num.isdecimal() and len(goods):
        num = int(num)
        lst = goods[num - 1]
        print(num, lst["name"], lst["price"])
    if "Q" == input("请输入q").upper().strip():
        break
while 1:
    num = (input("请选择"))
    if num.isdecimal() and len(goods):
        num = int(num)
        lst = goods[num - 1]
        print(num, lst["name"], lst["price"])
    if "Q" == input("请输入q").upper().strip():
        break

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