获取每行文件中的数字总和 [英] Getting Sum Of Numbers In Each Line Of File

问题描述

我有一个文件，其中有一些数字，我想将每一行中的第一与第二相加.这是我的文件中的数字:

i have a file that there is some numbers that i want to sum number one with number two in each line.here is numbers in my file:

-944 -857
-158 356
 540 70
 15 148

例如我想求和 -944 和 -857 我该怎么办??我像下面的代码一样检查数字是什么，输出是 -158 和 15(它没有显示 -944 和 540 ！！！):

for example i want to sum -944 and -857 what should i do?? i did it like the code below to check whats the numbers and the output is -158 and 15(it doesnt show -944 and 540 !!!):

        StreamReader ar = new StreamReader(@"C:\Users\arash\Desktop\problem1 (3).in");
        while (ar.ReadLine() != null)
        {
            string[] spl = ar.ReadLine().Split(' ');
            MessageBox.Show(spl[0]);

        }

推荐答案

您正在 while 条件中执行 readline，并在 while 范围的主体中再次执行，因此跳过了 1 个 readline 指令(在 while 条件中).试试这个:

you're doing a readline in your while condition and again in the body of your while scope, thus skipping 1 readline instruction (in the while condition). try this instead:

StreamReader ar = new StreamReader(@"C:\Users\arash\Desktop\problem1 (3).in");
string s = ar.ReadLine();
while (s != null)
{
    //string[] spl = s.Split(' ');
    // below code seems safer, blatantly copied from one of the other answers..
    string[] spl = s.Split(' ', 2, StringSplitOptions.RemoveEmptyEntries);
    MessageBox.Show(spl[0]);
    s = ar.ReadLine();
 }

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