实验5

实验任务6

with open('C:/Users/Lenovo/Desktop/data6.csv','r',encoding='gbk')as f:
    data1 = f.read().split('\n')
del data1[0]
for i in range(len(data1)):
    data1[i] = eval(data1[i])
    data1[i] = float(data1[i])
print('原始数据:')
print(data1)
data2 = []
for i in range(len(data1)):
    data2.append(int(data1[i]+0.5))
print('四舍五入后数据:')
print(data2)
for i in range(len(data1)):
    data1[i] = str(data1[i])
for i in range(len(data1)):
    data2[i] = str(data2[i])
title = ['原始数据','四舍五入后数据']
info = []
for i in range(len(data1)):
    info.append([data1[i],data2[i]])
with open('data6_processed.csv','w',encoding='utf-8') as f:
    f.write(','.join(title)+'\n')
    for item in info:
        f.write(','.join(item)+'\n')

 实验任务7

with open("C:/Users/Lenovo/Desktop/data7.csv",'r',encoding='gbk')as f:
    title=[f.readline()]
    data=f.readlines()
def getscore(ls):
    return ls[len(ls)-1]

data=[line.strip('\n').split(',')for line in data]

data.sort(key=lambda x:(x[2],-int(x[3])))


with open('data7_processed.csv', 'w', encoding = 'gbk') as f:
    f.write(','.join(title))
    for item in data:
        f.write(','.join(item) + '\n')
title=title[0].strip('\n').split(',')

print('{:<10}'.format(title[0]),'{:<10}'.format(title[1]),'{:<10}'.format(title[2]),'{:<15}'.format(title[3]))
for i in data:
    print('{:<10}'.format(i[0]), '{:<10}'.format(i[1]), '{:<10}'.format(i[2]), '{:<10}'.format(i[3]))

 实验任务8

with open("C:/Users/Lenovo/Desktop/hamlet.txt",'r',encoding='utf-8')as f:
    data1=f.readlines()
print('行数:',len(data1))
with open("C:/Users/Lenovo/Desktop/hamlet.txt",'r',encoding='utf-8')as f:
    data2=f.read()
print('单词数:',len(data2.split()))
isalpha=0
others=0
for i in data2:
    if i.isalpha():
        isalpha+=1
    else:
        others+=1
print('字符数:',isalpha+others)
print('空格数：',data2.count(' '))

with open('halmet_with_line_number.txt','w',encoding='utf-8')as f:
    data3=data2.splitlines()
    data4=[]
    for i in range(len(data3)):
        data4.append(f'{i+1} '+data1[i]+'\n')
    f.writelines(data4)

 实验任务9

def is_valid(id):
    if len(id)==18 and id[:-1].isdigit() and (id[-1].isdigit() or id[-1]=='X'):
        return True
    else:
        return False

with open("C:/Users/Lenovo/Desktop/data9_id.txt",'r',encoding='utf-8')as f:
    data=f.readlines()

data.remove(data[0])
data0=[i.strip('\n').split(',') for i in data]
data1=[]
for i in data0:
    if is_valid(i[1])==True:
        i[1]=i[1][6:14]
        data1.append(i)

import datetime
t=datetime.datetime.now()
y=t.strftime('%Y%m%d')
for i in data1:
    i.append(str(int(y)-int(i[1][0:8])))

data2=sorted(data1,key=lambda x:-int(x[2]))

print('姓名, 出生日期, 年龄')
for i in data2:
    i[1]=i[1][0:4]+'-'+i[1][4:6]+'-'+i[1][6:8]
    i[2]=i[2][0:2]
    print(', '.join(i))

 实验任务10(1)

print(f"{'抽点开始':*^40}")
import random as r
with open("C:/Users/Lenovo/Desktop/data10_stu.txt",'r',encoding = 'utf-8') as f:
        stu = f.readlines()

def func(n):
    stu_list = []
    while True:
        if n != 0:
            i = r.randint(0,len(stu)-1)
            if stu[i] not in stu_list:
                stu_list.append(stu[i])
                print(stu[i])
                n -= 1
            else:
                pass
        else:
            print(f"{'抽点结束':*^40}")
            break

n = int(input('输入随机抽点人数:'))
func(n)

 实验任务10(2)

print(f"{'抽点开始':*^40}")
import random as r
with open("C:/Users/Lenovo/Desktop/data10_stu.txt",'r',encoding = 'utf-8') as f:
        stu = f.readlines()

def func(n):
    stu_list = []
    while True:
        if n != 0:
            i = r.randint(0,len(stu)-1)
            if stu[i] not in stu_list:
                stu_list.append(stu[i])
                print(stu[i])
                n -= 1
            else:
                pass
        if n==0:
            break

while True:
    n = int(input('输入随机抽点人数:'))
    if n != 0:
        func(n)
    else:
        print(f"{'抽点结束':*^40}")
        break