task3.py 
 1 def is_valid(m):
 2     if len(m)==18 and m.isdigit():
 3         return 'True'
 4     elif len(m)==18 and m[-1]=='X':
 5         return 'True'
 6     else:
 7         return 'False'
 8 
 9 with open('data3_id.txt','r',encoding = 'utf-8') as f:
10     data = f.readlines()
11 list = []
12 for i in data:
13     data_ = i.strip('\n')
14     if is_valid(data_[3:]) == 'True':
15         list.append(data_)
16 list.sort(key=lambda x: x[9:13])
17 for m in list:
18     print('{},{}-{}-{}'.format(m[:2],m[9:13],m[13:15],m[15:17]))

 

 

 

 

task5_2.py

 1 with open('data5_1.txt','r',encoding='utf-8')as f:
 2     data=f.readlines()
 3     for i in data:
 4         i.strip("\n")
 5 import datetime
 6 t=datetime.datetime.now()
 7 filename=t.strftime('%Y%m%d')+'txt'
 8 print(f"{'抽点开始':=^40}")
 9 import random
10 while True:
11     n=int(input('输入随机抽点人数:'))
12     sample=random.sample(data,n)
13     for i in sample:
14         data.remove(i)
15     with open(filename, 'a+', encoding='utf-8') as f:
16         for i in sample:
17             print(i)
18             f.write(i)
19     if n==0:
20         print(f"{'抽点结束':=^40}")
21         break