实验四

with open('data6_1.txt', 'r', encoding = 'utf-8') as f:
    data = f.read().split('\n')
    content = [str(i).split('\t') for i in data]
    n = lambda content: content[2]
    content.sort(key=n, reverse=True)
with open('data6_2.txt', 'w', encoding='utf-8') as f:
    for x in content:
        for y in x:
            f.write(y + '\t')
            print(y + '\t', end='')
        f.write('\n')
        print()

 

 

 

import random
x = eval(input('请输入一个抽点数字：'))
y = []
i = 0
with open('data7.txt', 'r') as f:
    data = f.readlines()
    while i < x:
        z = random.choice(data)
        y.append(z)
        i += 1
        print(z.strip())
with open('lucky.txt', 'w') as f:
    for m in y:
        n = ''.join(m)
        f.write(n)

 

 

 

 

import random
import datetime
x = eval(input('请输入一个抽点数字：'))
y = []
i = 0
t = datetime.datetime.now()
p = t.strftime('%Y%m%d')
with open('data7.txt', 'r') as f:
    data = f.readlines()
    while i < x:
        z = random.choice(data)
        y.append(z)
        i += 1
        print(z.strip())
with open(f'{p}.txt', 'w') as f:
    for m in y:
        n = ''.join(m)
        f.write(n)