实验5 文件应用编程

实验任务6

task6.py

实验源码：

with open('data6.csv','r',encoding='gbk') as f:
    data = f.readlines()
data1=[str(eval(data[i])) for i in range(1,len(data))]
data2=[str(int(eval(data[i])+0.5)) for i in range(1,len(data))]
info=[[data1[i],data2[i]] for i in range(len(data1)) ]
title = ['原始数据','四舍五入后数据']

with open('data6_processed.csv', 'w', encoding = 'gbk') as f:
    f.write(','.join(title) + '\n') # 写入标题行
    for item in info:
        f.write(','.join(item) + '\n')
ls1 = []
ls2 = []
with open('data6_processed.csv', 'r', encoding = 'gbk') as f:
    data3=f.readlines()
for i in range(1,len(data3)):
    data4=data3[i].split(',')
    ls1.append(data4[0].strip())
    ls2.append(data4[1].strip())
print('原始数据')
print(ls1)
print('四舍五入后数据')
print(ls2)

实验结果：

实验任务7

实验源码：

with open('data7.csv','r',encoding='gbk') as f:
    data1 = f.read().split('\n')
del data1[0]
lsta = []
lstm = []
for i in data1:
    lst1 = i.split(',')
    if lst1[2] == 'Acting':
        lsta.append(lst1)
    else:lstm.append(lst1)
lstm.sort(key=lambda x:x[-1],reverse = True)
lsta.sort(key=lambda x:x[-1],reverse = True)
info = lsta + lstm
title = ['学号','姓名','专业','分数']
with open('data7_processed.csv','w',encoding='gbk') as f:
    f.write(','.join(title)+'\n')
    for items in info:
        f.write(','.join(items)+'\n')
print('{:<10}'.format(title[0]),'{:<10}'.format(title[1]),'{:<10}'.format(title[2]),'{:<15}'.format(title[3]))
for i in info:
    print('{:<10}'.format(i[0]),'{:<10}'.format(i[1]),'{:<10}'.format(i[2]),'{:<15}'.format(i[3]))

实验结果：

实验任务8

实验源码：

with open(r'C:\Users\28678\Downloads\实验5数据文件\hamlet.txt','r') as f:
    data=f.read()

print('hamlet.txt粗略统计:')
print(f'行数:{len(data.splitlines())}')
print(f'单词数:{len(data.split())}')
print(f'字符数:{len(data)}')
print(f'空格数:{data.count(" ")}')

data1=data.splitlines()
data2=[]
for i in range(len(data1)):
    data2.append(f'{i+1} '+data1[i]+'\n')

with open(r'C:\Users\28678\Downloads\实验5数据文件\hamlet_with_line_number.txt',
'w') as f:
    f.writelines(data2)

实验结果：

实验任务9

实验源码：

def is_valid(sfz):
    if len(sfz) != 18:
        return False
    elif (sfz[:-1].isnumeric() and sfz[-1] == 'X') or sfz.isnumeric():
        return True
    else:return False


with open('data9_id.txt','r',encoding='utf-8') as f:
    data = f.read().split('\n')
del data[0]
data2 = []
data3 =[]
print('姓名,出生日期,年龄')
for i in data:
    lst = i.split(',')
    data2.append(lst)
lst2 = []
for i in data2:
    if is_valid(i[1]) == True:
        name = i[0]
        btd = i[1][6:14]
        age = str(2023 - int(i[1][6:10]))
        lst2.append([name,btd,age])
lst2.sort(key=lambda x:x[2],reverse=True)
for i in lst2:
    print(i[0],end=',')
    print(f'{i[1][:4]}-{i[1][4:6]}-{i[1][6:8]}',end=',')
    print(i[2])

实验任务10

task1.py

with open('data10_stu.txt','r',encoding='utf-8') as f:
    data = f.readlines()
print('{:*^40}'.format('抽点开始'))
n = int(input('输入随机抽点人数:'))
import random
x = []
x2 = ''
counts = 0
while counts < n:
    new = random.randint(0, len(data) - 1)
    if new in x:
        new = random.randint(0, len(data) - 1)
    else:
        counts +=1
        x.append(new)
sum1 = 0
for i in range(n):
    print(data[x[i]])
    x2 += data[x[i]]
    sum1 += n
with open('20230602.txt','w',encoding='utf-8') as f:
    f.writelines(x2)

task2.py

实验源码：

with open('data10_stu.txt','r',encoding='utf-8') as f:
    data = f.readlines()
print('{:*^40}'.format('抽点开始'))
n = int(input('输入随机抽点人数:'))
import random
x = []
sum1 = 0
x2 = ''
while n != 0:
    counts = 0
    while counts < n:
        new = random.randint(0, len(data) - 1)
        if new in x:
            new = random.randint(0, len(data) - 1)
        else:
            counts +=1
            x.append(new)
    for i in range(sum1,sum1+n):
        print(data[x[i]])
        x2 += data[x[i]]
    sum1 += n
    n = int(input('输入随机抽点人数:'))

with open('20230602.txt','w',encoding='utf-8') as f:
    f.writelines(x2)

print('{:*^40}'.format('抽点结束'))