实验四

with open ('data6_1.txt','r',encoding='utf-8')as f:
    data = f.readlines()
    list1=[]
    for line in data:
        a=line.strip('\n').split('\t')
        list1.append(a)
    k=lambda list1:list1[2]
    list1.sort(key=k,reverse=True)
    print(list1)
with open ('data6_2.txt','w',encoding='utf-8')as f:
    for i in list1:
        f.write('     '.join(i)+'\n')

import random
with open ('data7.txt','r')as f:
    data = f.readlines()
    list1=[]
    for line in data:
        a=line.strip('\n').split('\t')
        list1.append(a)
    n=eval(input('人数:'))
    list=[]
    print(list1)
    while len(list)<n:
        shu=random.randint(0,len(list1)-1)
        if list1[shu] in list:
                continue
        else:
                list.append(data[shu])
with open('lucky.txt','w+',encoding='utf-8')as f:
    for i in list:
        f.write(i + '\n')

import datetime
t = datetime.datetime.now()
p=t.strftime('%Y%m%d')

import random
with open ('data7.txt','r')as f:
    data = f.readlines()
    list1=[]
    for line in data:
        a=line.strip('\n').split('\t')
        list1.append(a)
    n=eval(input('人数:'))
    list=[]
    print(list1)
    while len(list)<n:
        shu=random.randint(0,len(list1)-1)
        if list1[shu] in list:
                continue
        else:
                list.append(data[shu])

with open(f'{p}.txt','w+',encoding='utf-8')as f:
    for i in list:
        f.write(i + '\n')