Question

该程序生成用户定义的随机数量，然后写入文件。该程序编写正常，但我希望文本文件使用\ n来连接。我做错了什么？

#This程序写入用户定义的 #random number to a file

import random

randfile = open("Randomnm.txt", "w" )

for i in range(int(input('How many to generate?: '))):
    line = str(random.randint(1, 100))
    randfile.write(line)
    print(line)

randfile.close()

Answer 1

添加“\ n”：

import random

randfile = open("Randomnm.txt", "w" )

for i in range(int(input('How many to generate?: '))):
    line = str(random.randint(1, 100)) + "\n"
    randfile.write(line)
    print(line)

randfile.close()

Answer 2

file.write()只是将文本写入文件。它不会连接或附加任何内容，因此您需要自己附加\n。

（请注意，该类型将在Python 3中称为_io.TextIOWrapper

为此，只需替换

即可

line = str(random.randint(1, 100))

带

line = str(random.randint(1, 100))+"\n"

这将为每个随机数附加一个换行符。

Answer 3

您还可以使用Python 3的print函数的file关键字参数：

import random

with open("Randomnm.txt", "w") as handle:
    for i in range(int(input('How many to generate?: '))):
        n = random.randint(1, 100)

        print(n, file=handle)
        print(n)

# File is automatically closed when you exit the `with` block

将随机数写入Python文件并使用换行符连接

3 个答案: