实验5

6.实验任务6

程序源代码：

with open('data6.csv','r',encoding = 'gbk') as f:
    data = f.readlines()

data_title = ['原始数据','四舍五入后数据']

data.remove('原始数据\n')
data_zahl = []
for i in data:
    if i[-1]=='\n':
        i = i[:-1]
        data_zahl.append(float(i))
data_new = [int(i+0.5) for i in data_zahl]

with open('data6_processed.csv','w',encoding= 'gbk') as f:
    f.write(','.join(data_title) + '\n')
    for i in range(len(data_zahl)):
        f.write(str(data_zahl[i])+','+str(data_new[i])+'\n')
print('原始数据：')
print(data_zahl)
print('四舍五入后数据：')
print(data_new)

运行程序截图：

7.实验任务7

程序源代码：

with open('data7.csv','r',encoding = 'gbk') as f:
    data = f.readlines()
data_t = ['学号','姓名','专业','分数']
data1 = [i.strip('\n').split(',') for i in data]
data1.remove(data1[0])

data2=sorted(data1,key=lambda x:(x[2],-int(x[3])))
with open('data7_processed.csv','w',encoding = 'gbk') as f:
    f.write(','.join(data_t) + '\n')
    for item in data2:
        f.write(','.join(item) + '\n')

print(f'{"学号":10s}{"姓名":10s}{"专业":10s}{"分数":10s}')
for a,b,c,d in data2:
    print('{:<10s}{:<10s}{:<10s}{:<10}'.format(a,b,c,d))

运行程序截图：

8.实验任务8

程序源代码：

with open('hamlet.txt','r',encoding='utf-8')as f:
    data = f.read()
    data1 = f.readlines()

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(" ")}')
data2 = []
for i in range(len(data1)):
    data2.append('{}'.format(i+1)+'.'+data1[i]+'\n')
with open('hamlet_with_line_number.txt','w',encoding='utf-8') as f:
    for i in data2:
        f.write(','.join(data2)+'\n')

运行程序截图：

9.实验任务9

程序源代码：

def is_valid(n):
    ls = []
    for i in range(10):
        ls.append(str(i))
    t = str(n)
    if len(t)!=18:
        return False
    else:
        i = 0
        while i <17:
            if t[i] not in ls:
                return False
                break
            else:
                i+=1

        else:
            if t[17] in ls or t[17]=='X':
                return True
            else:
                return False

with open('data9_id.txt','r',encoding = 'utf-8') as f:
    data = f.readlines()

data.remove('姓名,身份证号码\n')
data1 = [i.strip('\n').split(',') for i in data]
for i in data1:
    if is_valid(i[1]):
        continue
    else:
        data1.remove(i)
data2=sorted(data1,key=lambda x:(x[1][6:13]))
for i in data2:
    nl = 2023 - int(i[1][6:10])
    i.append(nl)
print('姓名，出生日期，年龄')
for a,b,c in data2:
    print('{},{},{}'.format(a,b,c))

运行程序截图：

10.实验任务10

task10-1.py

1. 程序源代码：

   with open('data10_stu.txt','r',encoding = 'utf-8') as f:
       data = f.readlines()
   
   data1 = [i.strip('\n').split(',') for i in data]
   
   print('{:*^40}'.format('抽点开始'))
   n = int(input('输入随机抽点人数:'))
   import random
   x = list(range(len(data1)))
   t = random.sample(x,n)
   
   for i in t:
       for j in data1[i]:
           print(j)
   
   with open('20230605.txt','w',encoding='utf-8') as f:
       for i in t:
           f.write(','.join(data1[i])+'\n')

    

运行程序截图:

task10-2.py

程序源代码：

with open('data10_stu.txt','r',encoding = 'utf-8') as f:
    data = f.readlines()

data1 = [i.strip('\n').split(',') for i in data]

print('{:*^40}'.format('抽点开始'))
n = int(input('输入随机抽点人数:'))
d= []
while n!=0:
    import random
    x = list(range(len(data1)))
    t = random.sample(x,n)
    for i in t:
        d.append(data[i])
        for j in data1[i]:
            print(j)
    n = int(input('输入随机抽点人数:'))
else:
    print('{:*^40}'.format('抽点结束'))


with open('20230605.txt','w',encoding='utf-8') as f:
    for i in d:
        f.write(''.join(i)+'\n')

运行程序截图: