实验任务6
1 # 读取并处理原始数据with open('data6.csv','r',encoding = 'gbk') as f:
2 old_data = f.read().split('\n')
3 del old_data[0]
4 # 四舍五入得到新数据
5 new_data = []
6 for i in range(len(old_data)):
7 if eval(old_data[i]) + float(0.5) >= int(eval(old_data[i])) + 1:
8 new_data.append(str(int(eval(old_data[i]))+1))
9 else:
10 new_data.append(str(int(eval(old_data[i]))))
11 # 形成二维列表
12 title = ['原始数据','四舍五入后数据']
13 data = []
14 for i in range(len(old_data)):
15 data.append([old_data[i],new_data[i]])
16 # 写入
17 with open('data6.csv','w',encoding = 'gbk') as f:
18 f.write(','.join(title) + '\n')
19 for i in data:
20 f.write(','.join(i) + '\n')
21 print('原始数据：')print(old_data)print('四舍五入后数据：')print(new_data)
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实验任务7
1 with open('data7.csv','r',encoding='gbk') as f:
2 data1 = f.read().split('\n')
3 del data1[0]
4 lsta = []
5 lstm = []
6 for i in data1:
7 lst1 = i.split(',')
8 if lst1[2] == 'Acting':
9 lsta.append(lst1)
10 else:lstm.append(lst1)
11 lstm.sort(key=lambda x:x[-1],reverse = True)
12 lsta.sort(key=lambda x:x[-1],reverse = True)
13 info = lsta + lstm
14 title = ['学号','姓名','专业','分数']
15 with open('data7_processed.csv','w',encoding='utf-8') as f:
16 f.write(','.join(title)+'\n')
17 for items in info:
18 f.write(','.join(items)+'\n')
19 print('{:<10}'.format(title[0]),'{:<10}'.format(title[1]),'{:<10}'.format(title[2]),'{:<15}'.format(title[3]))
20 for i in info:
21 print('{:<10}'.format(i[0]),'{:<10}'.format(i[1]),'{:<10}'.format(i[2]),'{:<15}'.format(i[3]))
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实验任务8
1 with open(r'C:\Users\28678\Downloads\实验5数据文件\hamlet.txt','r') as f:
2 data=f.read()
3
4 print('hamlet.txt粗略统计:')
5 print(f'行数:{len(data.splitlines())}')
6 print(f'单词数:{len(data.split())}')
7 print(f'字符数:{len(data)}')
8 print(f'空格数:{data.count(" ")}')
9
10 data1=data.splitlines()
11 data2=[]
12 for i in range(len(data1)):
13 data2.append(f'{i+1} '+data1[i]+'\n')
14
15 with open(r'C:\Users\28678\Downloads\实验5数据文件\hamlet_with_line_number.txt',
16 'w') as f:
17 f.writelines(data2)
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实验任务9
1 def is_valid(sfz):
2 if len(sfz) != 18:
3 return False
4 elif (sfz[:-1].isnumeric() and sfz[-1] == 'X') or sfz.isnumeric():
5 return True
6 else:return False
7
8
9 with open('data9_id.txt','r',encoding='utf-8') as f:
10 data = f.read().split('\n')
11 del data[0]
12 data2 = []
13 data3 =[]
14 print('姓名,出生日期,年龄')
15 for i in data:
16 lst = i.split(',')
17 data2.append(lst)
18 lst2 = []
19 for i in data2:
20 if is_valid(i[1]) == True:
21 name = i[0]
22 btd = i[1][6:14]
23 age = str(2023 - int(i[1][6:10]))
24 lst2.append([name,btd,age])
25 lst2.sort(key=lambda x:x[2],reverse=True)
26 for i in lst2:
27 print(i[0],end=',')
28 print(f'{i[1][:4]}-{i[1][4:6]}-{i[1][6:8]}',end=',')
29 print(i[2])
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实验任务10
task10-1
1 with open(r'C:\Users\28678\Downloads\实验5数据文件\data10_stu.txt','r') as f:
2 data=f.readlines()
3
4 data0=[i.strip('\n').split('\t') for i in data]
5
6 import random
7 n=eval(input('输入随机抽点人数：'))
8 data1=random.sample(data0,n)
9 for i in data1:
10 print(' '.join(i))
11
12 import datetime
13 t=datetime.datetime.now()
14 fn=t.strftime('%Y%m%d')
15
16 with open(r'C:\Users\28678\Downloads\实验5数据文件\{}.txt'.format(fn),'w') as f:
17 for i in data1:
18 i[0]+='\t'
19 i[1]+='\t'
20 i[2]+='\n'
21 f.writelines(i)
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task10-2
1 import datetime
2 t = datetime.datetime.now()
3 filename = t.strftime('%Y%m%d') + '.txt'
4 start='抽取开始'
5 print(start.center(50,'*'))
6 with open('data10_stu.txt', 'r', encoding='utf-8') as f:
7 data = f.readlines()
8
9 def random_selection(n):
10 import random
11 demo = random.sample(data, n)
12 return demo
13 selection=set()
14 numbers=[]
15
16 while True:
17 n = eval(input('输入随机抽点人数：'))
18 if n != 0:
19 x=random_selection(n)
20 for i in x:
21 print(i)
22 data.remove(i)
23 with open(filename,'a',encoding='utf-8') as f :
24 f.writelines(i)
25 else:
26 print('抽取结束'.center(50,'*'))
27 break
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标签：文件,old,data1,data,编程,实验,print,open,append From： https://www.cnblogs.com/202280060019x/p/17459198.html