如何从文本文件 python 中删除编号最大的行？

Question

with open('winnernum.txt', 'r') as b:
  data = b.readlines()
  gone=(max(data))
  print(gone)
with open("winnernum.txt","r") as h:
  del gone

我已经在 python 中尝试过此代码和此代码的其他变体，但它仍然无法删除。我需要打印文本文件中前 5 个最大的数字。

我以前尝试过使用这个：

with open('winners.txt', 'r') as b:
  data = b.readlines()
  gone=(max(data))
  print(gone)
import heapq
print(heapq.nlargest(5, winner))

但这并不总是选择前 5 个数字，而是倾向于 select 随机选择。请帮忙！

Answer 1

试试这个：

from contextlib import closing

with closing(open('winners.txt', 'r')) as file:
    gone = max(map(lambda x: x.rstrip('\n'), file.readlines()))

print(gone)

Answer 2

这是一个简单的解决方案：

from heapq import nlargest

with open("winnernum.txt", "r") as f:
    numbers = [float(line.rstrip()) for line in f.readlines()]
    largest = nlargest(5, numbers)

print(largest)

如何从文本文件 python 中删除编号最大的行？

how do you delete the line with the biggest number from a text file python?

python

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