Question

我在确定如何获取用户输入并将数字写入文件时遇到了一些困难。

例如，如果用户输入数字50，程序应创建一个文本文件，其中包含数字1,2,3,....50，保存文件中的输出。

这是我到目前为止所做的工作并保存用户对文件的输入。

我无法弄清楚如何将其分解，以便保存到从1开始的文件并计入用户输入的数字。

def main():
outfile = open('counting.txt', 'w')

print('This program will create a text file with counting numbers')
N = int(input('How many numbers would you like to store in this file: ')

outfile.write(str(N) + '\n')

outfile.close()
print('Data has been written to counting.txt')

main()

Answer 1

我正在使用for循环。

def main():
    outfile = open('counting.txt', 'w')

    print('This program will create a text file with counting numbers')

    N = int(input('How many numbers would you like to store in this file: '))

    for number in range(N):  # the variable number will get every value from 0 to N-1 in each iteration
        outfile.write(str(number + 1) + '\n')

    outfile.close()
    print('Data has been written to counting.txt')


if __name__ == "__main__":
    main()

Answer 2

您也可以使用join和map的组合来完成此操作。 map函数将范围[1，N]中的每个整数转换为字符串，join函数将使用逗号,连接所有数字作为分隔符：

def main():
    outfile = open('counting.txt', 'w')

    print('This program will create a text file with counting numbers')
    N = int(input('How many numbers would you like to store in this file: ')

    outfile.write(",".join(map(str,range(1,N+1))))

    outfile.close()
    print('Data has been written to counting.txt')

main()

将计数数字写入文本文件

2 个答案: