实验六

def is_valid(x):
    if len(x[1])==18 and (x[1][:-1].isdigit() and x[1][-1] in '0123456789X'):
        return True
    return False

with open('data3_id.txt','r',encoding='utf-8') as f:
    id_name=[(i[:2],i[3:].strip('\n')) for i in f.readlines()[1:]]

result=list(filter(is_valid,id_name))
result.sort(key=lambda x:int(x[1][6:14]))
for i in result:
    print(f"{i[0]},{i[1][6:10]}-{i[1][10:12]}-{i[1][12:14]}")

 

 

 

import random
n=int(input("输入随机抽点人数:"))
with open('data5.txt','r',encoding='utf=8') as f:
    list=f.readlines()

list2=random.sample(list,n)

with open("20220522.txt",'w+',encoding='utf=8') as f:
    for i in list2:
        print(i)
        f.write(i+'\n')

 

 

import random
print(f"{'抽点开始':=^40}")
n=int(input("输入随机抽点人数:"))
with open('data5.txt','r+',encoding='utf=8') as f:
    list=f.readlines()

while n!=0:
    list1=random.sample(list,n)
    for i in list1:
        print(i)
        list.remove(i)
    with open("20220522.txt","a+",encoding='utf=8') as f:
            for i in list1:
                f.write(i+'\n')
    n=int(input("输入随机抽点人数:"))
print(f"{'抽点结束':=^40}")