python - 写入纺织品

Question

我有一段令人惊叹的代码，我想将输出写入文本文件，但不太确定如何将它自动提供给我的数据写入文本文件？

import random
members = 5
participants=[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20]
random.shuffle(participants)
for i in range(len(participants) // members + 1):
    print('Group {} consists of:'.format(i + 1))
    group = participants[i*members:i*members + members]
    for participant in group:
        print(participant)

那么一旦写入，我怎样才能让它从文本文件中读出数据？

感谢您的评论或解答!

Answer 1

要写入文本文件，您必须首先打开该文本文件，Python 使用 open(filename, read or write) 使这变得简单

import random
members = 5
participants=[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20]
random.shuffle(participants)
with open("myfile.txt",'w') as tf:
    for i in range(len(participants) // members + 1):
        group = participants[i*members:i*members + members]
        for participant in group:
            tf.write("Group "+str(i+1)+" consists of:"+str(participant))
            tf.write("\n")

将每个参与者写在单独的行上。要读回这些内容:

with open("myfile.txt",'r') as tf:
    for line in tf.readlines():
        print(line)

为了澄清，以下语句写入文件:

with open("myfile.txt",'w') as tf:
    tf.write("Some string of text")

tf是一个允许你对文件进行操作的对象