如何在d3.js中为路径上的多个圆圈制作动画？(How to animate multiple circles on a path in d3.js?)

 读取文件时可以这样做： 
 
// create a placeholder for processed lines
List<List<string>> _output = new List<List<string>>();

using (StreamReader reader = new StreamReader(File.OpenRead(filePath)))
{
    int i = 0; // create indexer
    _output.Add(new List<string>()); // add new sequence
    _output.Last().Add(i.ToString() + "."); // insert sequence indexer
    string line = string.Empty;
    while( (line = reader.ReadLine()) != null)
    {
        if(string.IsNullOrWhiteSpace(line))
        {
            i++;
            _output.Add(newList<string>());
            _output.Last().Add(i.ToString() + ".");
        }
        else
        {
            _output.Last().Add(line);
        }
    }
}
 
 然后，您可以使用以下内容将其写入文本文件中： 
 
using (StreamWriter writer = new StreamWriter(File.OpenWrite(filePath)))
{
    foreach(List<string> lines in _output)
    {
        foreach(string line in lines)
        {
            writer.WriteLine(line);
        }
        writer.WriteLine(line);
    }
}
 
 如果这不是一个文件（没有指定），而是string ，你可以使用StringReader而不是StreamReader和StringWriter来代替StreamWriter 。 
 
 对于因“非正则表达式”回答或其他某些其他原因而想要downvote的其他人... 
 
 进行比较 

You can do this while reading the file :
 
// create a placeholder for processed lines
List<List<string>> _output = new List<List<string>>();

using (StreamReader reader = new StreamReader(File.OpenRead(filePath)))
{
    int i = 0; // create indexer
    _output.Add(new List<string>()); // add new sequence
    _output.Last().Add(i.ToString() + "."); // insert sequence indexer
    string line = string.Empty;
    while( (line = reader.ReadLine()) != null)
    {
        if(string.IsNullOrWhiteSpace(line))
        {
            i++;
            _output.Add(newList<string>());
            _output.Last().Add(i.ToString() + ".");
        }
        else
        {
            _output.Last().Add(line);
        }
    }
}
 
Then you can write this into a text file using :
 
using (StreamWriter writer = new StreamWriter(File.OpenWrite(filePath)))
{
    foreach(List<string> lines in _output)
    {
        foreach(string line in lines)
        {
            writer.WriteLine(line);
        }
        writer.WriteLine(line);
    }
}
 
If that's not a file ( which was not specified ) but string instead, you can use StringReader instead of StreamReader and StringWriter instead of StreamWriter.
 
For everyone else that want to downvote because of "non-regex" answer or some other b....
 
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