blocks|key|1658022|text|string+line;

using+(var+sr+=+new+StreamReader("answers.txt"))
{
++++while+((line+=+sr.ReadLine())+!=+null)
++++{
++++++++for+(int+iCountLine+=+0;+iCountLine+<+10;+iCountLine%2B%2B)
++++++++{
++++++++++++var+answers+=+line.Split(',');
++++++++++++for+(int+iCountAnswer+=+0;+iCountAnswer+<+4;+iCountAnswer%2B%2B)
++++++++++++{
++++++++++++++++sQuestionAnswers[iCountLine,+iCountAnswer]+=+answers[iCountAnswer];
++++++++++++}
++++++++}
++++}
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1658023|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>string line;

using (var sr = new StreamReader("answers.txt"))
{
 while ((line = sr.ReadLine()) != null)
 {
 for (int iCountLine = 0; iCountLine &lt; 10; iCountLine++)
 {
 var answers = line.Split(',');
 for (int iCountAnswer = 0; iCountAnswer &lt; 4; iCountAnswer++)
 {
 sQuestionAnswers[iCountLine, iCountAnswer] = answers[iCountAnswer];
 }
 }
 }
}
</code></pre>

blocks|key|1658041|text|我不确定在for循环中的"=“之后需要什么
|type|blockquote|depth|inlineStyleRanges|entityRanges|data|1658042|unstyled|1658043|它上面也缺少一条线：|1658044|var+tokens+=+sr.ReadLine().Split(',');|code-block|syntax|javascript|1658045|现在，使用=的行如下所示：|offset|length|style|CODE|1658046|sQuestionAnswers[iCountLine,+iCountAnswer]+=+tokens[iCountAnswer];|1658047|entityMap^0|0|0|0|0|5|1|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|-4|5|C|7|V|8|@]|9|@]|A|$]]|$1|D|3|E|5|C|7|W|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|X|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|C|7|Y|8|@$M|Z|N|10|O|P]]|9|@]|A|$]]|$1|Q|3|R|5|H|7|11|8|@]|9|@]|A|$I|J]]|$1|S|3|-4|5|C|7|12|8|@]|9|@]|A|$]]]|T|$]]

<blockquote>
 I'm not sure what I need after the "=" in the for loop
</blockquote>

There's also a line missing above it:

<pre><code>var tokens = sr.ReadLine().Split(',');
</code></pre>

Now the line with <code>=</code> would look like this:

<pre><code>sQuestionAnswers[iCountLine, iCountAnswer] = tokens[iCountAnswer];
</code></pre>

blocks|key|1189422|text|我建议你改变方法。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1189423|使用ReadLine()方法查看StreamReader类的文件。然后使用Split(new[]{'，'})拆分读行，这将为您提供每条记录。最后，sQuestionAnswersiCountLine，iCountAnswer将是:刚刚拆分数组的iCountAnswer的记录。|1189424|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

I'd suggest you to change the approach.

Go over the file using ReadLine() method of a StreamReader class.
Then split the read line using Split(new[]{','}), and this will give you every single record.
And finally the sQuestionAnswers[iCountLine, iCountAnswer] will be: the just Split array's [iCountAnswer]'s record.

blocks|key|1658071|text|这不使用StreamReader，但它很短，很容易理解：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1658072|++++++++string[]+lines+=+File.ReadAllLines(@"Data.txt");
++++++++string[][]+jaggedArray+=+lines.Select(line+=>+line.Split(',').ToArray()).ToArray();|code-block|syntax|javascript|1658073|行由ReadAllLines根据换行符提取。通过在每一行上调用Split提取列值。它返回可以类似于多维数组使用的锯齿数组，而且锯齿数组通常比多维数组更快。|1658074|entityMap^0|4|C|0|0|2|C|V|5|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|S|8|@$9|T|A|U|B|C]|$9|V|A|W|B|C]]|D|@]|E|$]]|$1|M|3|-4|5|6|7|X|8|@]|D|@]|E|$]]]|N|$]]

This doesn't use <code>StreamReader</code>, but it's short and easy to understand:

<pre><code> string[] lines = File.ReadAllLines(@"Data.txt");
 string[][] jaggedArray = lines.Select(line =&gt; line.Split(',').ToArray()).ToArray();
</code></pre>

Rows are extracted by <code>ReadAllLines</code> according to newline. Columns values are extracted by calling <code>Split</code> on every line. It returns jagged array that you can use similarly to multidimensional array, also jagged arrays are generally faster than multidimensional arrays.

I currently have this:

<pre><code>using (StreamReader sr = new StreamReader("answers.txt"))
{
 for (iCountLine = 0; iCountLine &lt; 10; iCountLine++)
 {
 for (iCountAnswer = 0; iCountAnswer &lt; 4; iCountAnswer++)
 {
 sQuestionAnswers[iCountLine, iCountAnswer] = 
 }
 }
}
</code></pre>

My text file is formatted like this (10 lines of text, with 4 items on each line separated by commas):

<blockquote>
<pre><code>example, example, example, example 
123, 123, 123, 123
</code></pre>
</blockquote>

I'm not sure what I need after the "=" in the for loop to get it to read and split the contents of the text file into the 2D array.

C# Read from text file separated by commas into 2d array

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我现在有这样的情况：using (StreamReader sr = new StreamReader("answers.txt")){ for (iCountLine = 0; iCountLine < 10; iCountLine++) { for (iCountAnswer = 0; ...

问从用逗号分隔的文本文件读取到2d数组中的C#
EN

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