Python二级应用题代码自用（无忧二级）
2024-04-28 03:47:47
简单应用题
第一套 2
data = input() # 姓名 年龄 性别
s = 0
n = 0
i = 0
while data:i += 1ls = data.split()s += int(ls[2])if ls[1] == '男':n += 1data = input()
s = s/i
print("平均年龄是{:.2f} 男性人数是{}".format(s,n))
第二套 2
names=input("请输入各个同学行业名称，行业名称之间用空格间隔（回车结束输入）：")
t = names.split()
d = {}
for i in range(len(t)):d[t[i]] = d.get(t[i],0)+1
ls = list(d.items())
ls.sort(key=lambda x:x[1], reverse=True) # 按照数量排序
for k in ls:print("{}:{}".format(k[0],k[1]))
第三套 2
# 与上一套极度相似
txt = input("请输入类型序列: ")
t = txt.split()
d = {}
for i in range(len(t)):d[t[i]] = d.get(t[i],0)+1
ls = list(d.items())
ls.sort(key=lambda x:x[1], reverse=True) # 按照数量排序
for k in ls:print("{}:{}".format(k[0], k[1]))
第四套 2
data = input() # 课程名 考分
d = {}
while data:t = data.split() # t = [课程名,考分]d[t[0]] = t[1]data = input()
ls = list(d.items())
ls.sort(key = lambda x:x[1],reverse = True)
avg = 0
for i in d.values():avg += int(i)
avg = avg/len(ls)
print("最高分课程是{} {}, 最低分课程是{} {}, 平均分是{:.2f}".format(ls[0][0],ls[0][1],ls[-1][0],ls[-1][1],avg))第五套 2
f=open("name.txt")
names=f.readlines()
f.close()
f=open("vote.txt")
votes=f.readlines()
f.close()
f.close()
f=open("vote1.txt","w")
D={}
NUM=0
for vote in votes:num = len(vote.split())if num==1 and vote in names: # 判断是否为有效票D[vote[:-1]]=D.get(vote[:-1],0)+1 # 次数统计NUM+=1else:f.write(vote)
f.close()
l=list(D.items())
l.sort(key=lambda s:s[1],reverse = True)
name=l[0][0]
score=l[0][1]
print("有效票数为：{} 当选村长村民为:{},票数为：{}".format(NUM,name,score))第六套 2
# 第一小问
f = open("vote.txt")
names = f.readlines()
f.close()
n = 0
for name in names:num = len(name.split()) #判断长度if num == 1:n+=1 #此处不可空格分开，挺傻逼的
print("有效票{}张".format(n))# 第二小问
f = open("vote.txt")
names = f.readlines()
f.close()
D = {}
for name in names:if len(name.split())==1:D[name[:-1]]=D.get(name[:-1],0) + 1
l = list(D.items())
l.sort(key=lambda s:s[1],reverse = True)
name = l[0][0]
score = l[0][1]
print("最具人气明星为:{},票数为：{}".format(name,score))第七套 2
#请补充若干行代码，完成向量积运算
ls = [111, 222, 333, 444, 555, 666, 777, 888, 999]
lt = [999, 777, 555, 333, 111, 888, 666, 444, 222]
s = 0
for i in range(len(ls)):s += ls[i]*lt[i]
print(s)第八套 2
while True:s = input("请输入不带数字的文本:")n = 0for i in s:if '0' <= i <='9':n += 1if n == 0:break
print(len(s))while True:s = input("请输入不带数字的文本:")flag = Truefor i in s:if '0' <= i <='9':flag = Falseif flag == True:break
print(len(s))第九套 2
import random
random.seed(2)pdict= {'Alice':['123456789'],'Bob':['234567891'],'Lily':['345678912'],'Jane':['456789123']}name = input('请输入一个人名:')
if name in pdict:print(name,pdict.get(name)[0],random.randint(1000,9999))
else:print('对不起，您输入的用户信息不存在。')
第十套 2
img = [0.244, 0.832, 0.903, 0.145, 0.26, 0.452]
filter = [0.1,0.8,0.1]
res = []
for i in range(len(img)-2):k = 0for j in range(3):k += img[i+j]*filter[j]print('k={:<10.3f},filter[{}]={:<10.3f},img[{}+{}]={:<10.3f}'.format(k,j,filter[j],i,j,img[i+j]))res.append(k)
for r in res:print('{:<10.3f}'.format(r),end = '')
第十一套 2
f = open('data.txt','r')school = []
country = []
for line in f:lines = line.strip('\n').split(",") # lines = ['1','麻省理工','美国']if lines != ['']:country.append(lines[-1]) # country = ['美国']school.append(lines[1:3]) # school = [['麻省理工','美国']]country =list(set(country))unis = []for i in country:n = 0 #计算一个国家有多少个学校schools = [] # 存放同一个国家的学校result = [] # 存放一个国家的信息包括 国家名、学校个数、学校名for k in school:if k[1] == i:schools.append(k[0])n += 1result = [i, n ,schools]unis.append(result)for d in unis:print('{:>4}: {:>4} : {}'.format(d[0],d[1],' '.join(d[2])))f.close()
第十二套 2
sumtime = 0
percls = []
ts = {}
with open('out.txt', 'r') as f:for line in f.readlines():line = line.strip('\n').split(',')sumtime += eval(line[1])ts[line[0]] = line[2]print('the total execute time is ', sumtime)tns = list(ts.items())
tns.sort(key=lambda x: x[1], reverse=True)
for i in range(3):print('the top {} percentage time is {}, spent in "{}" operation'.format(i, tns[i][1],tns[i][0]))第十三套 2
import jieba
s = input("请输入一段中文文本，句子之间以逗号或句号分隔：")
slist = jieba.lcut(s)
m = 0
for i in slist:if i in "，。":continueprint(i,end = '/')m += 1
print("\n中文词语数是：{}\n".format(m))s = ''
for i in slist:if i in "，。":print('{:^20}'.format(s))s = ''continues += i
第十四套 2
import random as r
r.seed(0)
persons = ['Aele', 'Bob','lala', 'baicai']
flag = 3
while flag>0:flag -= 1name = input("请输入一个名字：")if name in persons:num = r.randint(1000,9999)print('{} {}'.format(name, num))elif name == 'q':breakelse:print('对不起，您输入的名字不存在。')
第十五套 2
import jiebaf = open('data.txt','w')s = input("请输入一个中文字符串，包含逗号和句号：")
k=jieba.lcut(s)
d1 = {}
for i in k:if len(i) >= 2:d1[i] = d1.get(i,0) + 1
ls = list(d1.items()) # ls = [['键','值'],[],[]]
for i in range(len(ls)):f.write('{}:{}'.format(ls[i][0],ls[i][1]))f.write('\n')f.close()
第十六套 2
import jieba
dela = '-;:,.()"<>'
s = input("请输入一句话:")
print("\n这句话是:{}".format(s))
new = ""
for i in s:if i in dela:i = ""new += i
print("替换之后是:{}".format(new))
print("里面有 {}个词语。".format(len(jieba.lcut(new))))综合应用题
第一套
# 第一问
f = open('命运.txt','r')d = {}
for i in f.read():if i not in "，。 ? ! 《》 【】 “” ‘’":d[i] = d.get(i,0) + 1
ls = list(d.items())
ls.sort(key = lambda x:x[1],reverse = True)
print("{}:{}".format(ls[0][0],ls[0][1]))f.close()# 第二问
f = open('命运.txt','r')
d = {}
for i in f.read():if i not in "\n ":d[i] = d.get(i,0) + 1
ls = list(d.items())
ls.sort(key=lambda x:x[1], reverse=True) # 此行可以按照词频由高到低排序for i in range(10):print(ls[i][0],end = "")f.close()# 第三问
fi = open('命运.txt','r')
fo = open('命运-频次排序.txt','w')
d = {}
for i in fi.read():if i not in "\n ":d[i] = d.get(i,0) + 1
ls = list(d.items())
ls.sort(key=lambda x:x[1], reverse=True) # 此行可以按照词频由高到低排序s = ""
for k in ls:s +='{}:{}'.format(k[0],k[1]) + ','fo.write(s[:-1])
#for i in ls:
# fo.write('{}:{},'.format(i[0],i[1]))
fi.close()fo.close()第二套
# 第一问
fi = open('sensor.txt','r',encoding='utf-8')
fo = open('earpa001.txt','w')for line in fi:ls = line.strip('\n').split(',')if ls[1] == ' earpa001':fo.write('{},{},{},{}\n'.format(ls[0],ls[1],ls[2],ls[3]))fi.close()
fo.close()# 第二问
fi = open('earpa001.txt','r')
fo = open('earpa001_count.txt','w')
d = {}
for line in fi:ls = line.strip('\n').split(',')m = ls[2] + '-' + ls[3]d[m] = d.get(m,0) + 1
ls = list(d.items())
ls.sort(key=lambda x:x[1], reverse=False) # 该语句用于排序# 写入文件
for i in range(len(ls)):fo.write('{},{}\n'.format(ls[i][0],ls[i][1]))fi.close()
fo.close()
第三套
# 第一问
fi = open("论语.txt", 'r')
fo = open("论语-原文.txt", 'w')
flag = False
for line in fi:if "【原文】" in line:flag = Truecontinueif "【注释】" in line:flag = Falseline = line.strip(" \n")if flag:if line:fo.write(line + '\n')
fi.close()
fo.close()
# 第二问
fi = open("论语-原文.txt", 'r')
fo = open("论语-提纯原文.txt", 'w')for line in fi:for i in range(1,100):line=line.replace('({})'.format(i),'')fo.write(line)
fi.close()
fo.close()第四套
# 第一问
f = open('PY301-SunSign.csv','r')
lines = f.readlines()
name = input('请输入星座中文名称（例如，双子座）：')
ls = []
for line in lines:if name in line:ls = line.split(',')print("{}的生日位于{}-{}之间".format(ls[1],ls[2],ls[3]))
f.close()
# 第二问
f = open('PY301-SunSign.csv','r')
lines = f.readlines()
s = input('请输入星座序号（例如，5)：')
nums = s.split()
ls = []
for num in nums:ls = lines[eval(num)].split(',')print("{}({})的生日是{}月{}日至{}月{}日之间".format(ls[1],ls[4][:-1],ls[2][:-2],ls[2][-2:],ls[3][:-2],ls[3][-2:]))
s = input('请输入星座序号（例如，5)：')
f.close()
# 第三问
f = open('PY301-SunSign.csv','r')
lines = f.readlines()
s = input('请输入星座序号（例如，5)：')
nums = s.split()
ls = []
for num in nums:if 1<= eval(num) <= 12:ls = lines[eval(num)].split(',')print("{}({})的生日是{}月{}日至{}月{}日之间".format(ls[1],ls[4][:-1],ls[2][:-2],ls[2][-2:],ls[3][:-2],ls[3][-2:]))else:print('输入星座序号有误！')
s = input('请输入星座序号（例如，5)：')
f.close()第五套
# 第一问
import jieba
f = open('data.txt','r')
lines = f.readlines()
f.close()
f = open('out.txt','w')
for line in lines: line = line.strip(' ') #删除每行首尾可能出现的空格wordList = jieba.lcut(line) #用结巴分词，对每行内容进行分词f.writelines('\n'.join(wordList)) #将分词结果存到文件out.txt中
f.close()# 第二问
import jieba
f = open('out.txt','r') #以读的方式打开文件
words = f.readlines()
f.close()
D={}
for w in words: #词频统计D[w[:-1]]=D.get(w[:-1],0) + 1
print("曹操出现次数为:{} ".format(D["曹操"]))
第六套
# 第一问
import jieba #此处可多行
fi = open('data.txt','r')
lines = fi.readlines()
f = open('out1.txt','w')words = []
for line in lines:line = line.strip('\n')wordlist = jieba.lcut(line)for word in wordlist:if len(word) >= 3 and (word not in words):words.append(word)
for word in words:f.write(word + '\n')fi.close()
f.close()# 第二问
import jieba # 此处可多行
fi = open('data.txt','r')
lines = fi.readlines()
f = open('out2.txt','w')words = []
for line in lines:line = line.strip('\n')wordlist = jieba.lcut(line)for word in wordlist:if len(word) >= 3:words.append(word)
d = {}
for word in words:d[word] = d.get(word,0) + 1ls = list(d.items())
ls.sort(key=lambda x:x[1], reverse=True) # 此行可以按照词频由高到低排序s = ''
for i in ls:s = '{}:{}'.format(i[0],i[1])f.write(s+'\n')
fi.close()
f.close()第七套
# 第一问
fi = open("score.txt","r")
lines = fi.readlines()
fo = open('candidate0.txt','w')
D=[] #单个学生的数据
L=[] #L中的元素是学生原始成绩和总成绩
for line in lines:D=line.split()s=0 #每个学生的总成绩初始值for i in range(10):s+=int(D[i+2]) #各科成绩累加求和，+2是因为前两个元素是学号和姓名D.append(s)L.append(D)L.sort(key=lambda x:x[-1],reverse=True) #按学生总成绩从大到小排序for i in range(10): #取前十个学生数据for j in range(len(L[i])): #一个学生的各项数据fo.write('{} '.format(L[i][j])) #写各项数据，用空格隔开fo.write('\n') #换行
fi.close()
fo.close()
# 第二问
fi=open("candidate0.txt",'r')
lines=fi.readlines()
D=[]
fo=open('candidate.txt','w')
for line in lines:D=line.split()for i in range(10):if int (D[i+2])<0:breakelse:fo.write('{}{}\n'.format(D[0],D[1]))
fi.close()
fo.close()第八套
# 第一问
fi = open('data.txt','r') # 此处可多行
lines = fi.readlines()
fo = open("univ.txt", "w")for line in lines:if 'alt' in line:dx = line.split('alt=')[1].split('"')[1]fo.write('{}\n'.format(dx))fi.close()
fo.close()# 第二问
n = 0k = 0f = open("univ.txt", "r")lines = f.readlines() # 此处可多行f.close()for line in lines:if '大学生' in line:continueelif "大学" in line:n += 1print(line)elif "学院" in line:k += 1print(line)print("包含大学的名称数量是{}".format(n))
print("包含学院的名称数量是{}".format(k))第九套
# 第一问
import jieba
f2019 = open('data2019.txt','r')
f2018 = open('data2018.txt','r')
lines2019 = f2019.read().split('\n')
lines2018 = f2018.read().split('\n')d = {}for i in lines2019:word = jieba.lcut(i)for j in word:if len(j) >=2:d[j] = d.get(j,0) + 1lt = list(d.items())
lt.sort(key = lambda x:x[1],reverse = True)
print('2019',end='')
for i in range(9):print('{}:{},'.format(lt[i][0],lt[i][1]),end = '')
print('{}:{}'.format(lt[9][0],lt[9][1]))d = {}for i in lines2018:word = jieba.lcut(i)for j in word:if len(j) >=2:d[j] = d.get(j,0) + 1lt = list(d.items())
lt.sort(key = lambda x:x[1],reverse = True)
print('2018',end='')
for i in range(9):print('{}:{},'.format(lt[i][0],lt[i][1]),end = '')
print('{}:{}'.format(lt[9][0],lt[9][1]))
f2019.close()
f2018.close()
# 第二问
import jieba
f2019 = open('data2019.txt','r')
f2018 = open('data2018.txt','r')
lines2019 = f2019.read().split('\n')
lines2018 = f2018.read().split('\n')
f2019.close()
f2018.close()d = {}
for i in lines2019:word = jieba.lcut(i)for j in word:if len(j) >=2:d[j] = d.get(j,0) + 1
lt = list(d.items())
lt.sort(key = lambda x:x[1],reverse = True)
lt2019 = []
for i in range(10):lt2019.append(lt[i][0])d = {}
for i in lines2018:word = jieba.lcut(i)for j in word:if len(j) >=2:d[j] = d.get(j,0) + 1lt = list(d.items())
lt.sort(key = lambda x:x[1],reverse = True)
lt2018 = []
for i in range(10):lt2018.append(lt[i][0])
ltlike = []
for i in lt2019:if i in lt2018:ltlike.append(i)
for i in ltlike:lt2019.remove(i)lt2018.remove(i)print('共有词语:',end = '')
for i in ltlike[:-1]:print(i,end = ',')
print(ltlike[-1])print('2019特有:',end = '')
for i in lt2019[:-1]:print(i,end = ',')
print(lt2019[-1])
print('2018特有:',end = '')
for i in lt2018[:-1]:print(i,end = ',')
print(lt2018[-1])
第十套
# 第一问
fi = open('data.txt','r',encoding = 'utf-8')
data = fi.read()
fi.close()
fo = open('clean.txt','w')s = ''
x = "，。：；、？！（） \n"
for i in data:if i not in x:s += i
fo.write(s)
fo.close()
# 第二问
import jieba
fi = open('clean.txt','r')
data = fi.read()
word = jieba.lcut(data)
fi.close()d = {}
for i in word:if len(i) >= 3:d[i] = d.get(i,0) + 1
lt = list(d.items())
lt.sort(key = lambda x:x[1],reverse = True)
for i in range(10):if i < 9:print('{}:{},'.format(lt[i][0],lt[i][1]),end='')else:print('{}:{}'.format(lt[i][0],lt[i][1]))
第十一套
import jiebaf = "红楼梦.txt"
sf = "停用词.txt"
fi = open(f ,'r' ,encoding = 'utf-8')
data = fi.read()
words = jieba.lcut(data)
fi.close()
fs = open(sf,'r',encoding = 'utf-8')
stopword = fs.read().split('\n')
fs.close()
namelist = [['凤姐','凤姐儿','凤丫头'],['宝玉','二爷','宝二爷'],['黛玉','颦儿','林妹妹','黛玉道'],['宝钗','宝丫头'],['贾母','老祖宗'],['袭人','袭人道'],['贾政','贾政道'],['贾琏','琏二爷']]for i in range(len(words)):if words[i] in stopword:words[i] = ''for j in range(8):if words[i] in namelist[j]:words[i] = namelist[j][0]d = {}
for i in words:d[i] = d.get(i,0) + 1
lt = list(d.items())
lt.sort(key = lambda x:x[1],reverse = True)
fo = open('result.csv','w')
for i in range(len(lt)):if lt[i][1] >= 40 and len(lt[i][0]) >= 2:fo.write("{},{}".format(lt[i][0],lt[i][1]))fo.write('\n')
fo.close()
第十二套
# 第一问
fi = open("八十天环游地球.txt",'r')
fo = open("八十天环游地球-章节.txt",'w')
words = fi.read().split('\n')for word in words:if '第' in word and '章' in word and len(word) <50 :fo.write(word)fo.write('\n')
fi.close()
fo.close()
# 第二问
import jiebafi1 = open('八十天环游地球-章节.txt','r')
name = fi1.read().split('\n') # 章节名
fi1.close()
fi2 = open('八十天环游地球.txt','r')
nr = fi2.read().split('\n') # 内容
fi2.close()n = 0
k = 1
tem = []
for i in nr:if i in name:n += 1if n == k:newword = jieba.lcut(i)for i in newword:tem.append(i)else:d ={}for i in tem:if len(i) >= 2:d[i] = d.get(i,0)+1lt = list(d.items())lt.sort(key = lambda x:x[1],reverse = True)c = name[k-1].split(' ')print('{} {} {}'.format(c[0],lt[0][0],lt[0][1]))k += 1tem = []
第十三套
# 第一问
fi = open('data.txt','r')
data = fi.read().strip().split('\n')
fi.close()fo = open('student.txt','w')
for i in data:fo.write('{}:{}'.format(i[:3],i[-3:]))fo.write('\n')
fo.close()# 第二问
fi = open('studs.txt','r')
data = fi.read().strip().split('\n')
fi.close()
names = []
for i in data:t = i.split(':')names.append(t)d = {}
for i in names:d[i[0]] = i[1]
lt = list(d.items())
lt.sort(key = lambda x:x[1],reverse = True)
print("{}:{}".format(lt[0][0],lt[0][1]))
# 第三问
f = open('data.txt','r')
data = f.read().strip().split('\n')
f.close()
student = []
for i in data:t1 = i.split(':')t2 = t1[1].split(',')if t2[0] not in student:student.append(t2[0])gs = 0
n = 0
for i in student:for j in data:t1 = j.split(',')if i in t1[0]:gs += eval(t1[1])n += 1print("{}:{:.2f}".format(i,gs/n))gs = 0n = 0第十四套
# 第一问
fi = open('webpage.txt','r')
p = fi.read().split()
fi.close()n = 0
for i in p:if 'JPG' in i:n += 1print(n)
# 第二问
fi = open('webpage.txt','r')
p = fi.read().split('\n')
fi.close()fo = open('images.txt','w')for i in p:if '.JPG' in i:start = i.index('src=') + 5end = i.index('.JPG') + 4fo.write(i[start:end])fo.write('\n')fo.close()第十五套
# 第一问import jieba
f = open('data3.txt','r')
lines = f.readlines()
f.close()
d ={}
words = []
for i in lines:word = jieba.lcut(i)for j in word:words.append(j)for i in words:if len(i) >= 2:d[i] = d.get(i,0) + 1lt = list(d.items())
lt.sort(key = lambda x:x[1],reverse = True)
for i in range(10):print('{}:{}'.format(lt[i][0],lt[i][1]))
# 第二问
fi = open('data3.txt','r')
fo = open('out.txt','w')
lines = fi.read().strip().split('。')
line = []
for i in lines:t = i.strip().split('，')for j in t:if '我们' in j:line.append(j)
for i in line:fo.write(i)fo.write('\n')
fi.close()
fo.close()第十六套
# 第一问
fi = open("data301.txt","r")
f = open("result301.txt","w")
cnumd = {}
name = ''
count = 0
flag = 1
for line in fi:if '"name":' in line:name = line.split(":")[1][2:-3]flag = 1elif '"value":' in line and flag == 1:dx = line.split(":")[1][0:-1]# dx = line.split(":")[1].strip()cnumd[name] = dxflag = 0count += 1
for d in cnumd.items():f.write("{}:{}\n".format(d[0],d[1]))
print("一共有{}个国家".format(count))
f.close()
fi.close()
# 第二问
lcnum = []
with open("result301.txt", "r") as fi:for line in fi:c = line.split(":")c[1]= eval(c[1])lcnum.append(c)lcnum.sort(key=lambda x:x[1], reverse= True)
lz = 0
lw = 0
for l in lcnum:if l[1] > 10000:lw += 1elif l[1] == 0:lz += 1print("新冠确诊人数最多的国家是{},人数是{}".format(lcnum[0][0],lcnum[0][1] ))
print("新冠确诊人数超过1W的国家有{}个".format(lw))
print("新冠确诊人数为0的国家有{}个".format(lz))
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