我如何通过在python 3中结束文件来终止输入 [英] How do I terminate an input by ending the file in python 3

问题描述

我正在处理的代码是一个简单的减法工作，但是当我需要结束输入时出现了我的问题。

The code I am working on is a simple subtraction work but my problem arises when I need to end the inputs.

该问题告诉我输入已终止到文件末尾，我不知道当问题有任意数量的输入时这意味着什么。

The problem tells me that the input is terminated by end of file and I have no idea what that means when the question has any number of inputs.

while(True):
    data=[]
    data= list(map(int,sys.stdin.readline().split()))
    if (data[1]>data[0]):
        total=data[1]-data[0]
    else:
        total=data[0]-data[1]
    print(total)

如何更改此代码以使其在无需用户输入任何内容的情况下结束

How do I change this code to allow it to end without the user inputting anything

推荐答案

根据注释中的建议，在 sys.stdin 上使用循环。我还添加了其他一些改进：

As suggested in comments, use loop over sys.stdin. I've also added some other improvements:

for line in sys.stdin:
    data = [int(x) for x in line.split()]
    total = abs(data[1] - data[0])
    print(total)

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