[英]What is the best way to convert a string separated by return chars into a List<string>?
I need to often convert a "string block" (a string containing return characters, eg from a file or a TextBox) into List<string>
. 我需要经常将“字符串块” (包含返回字符的字符串,例如从文件或TextBox) 转换为
List<string>
。
What is a more elegant way of doing it than the ConvertBlockToLines method below? 比下面的ConvertBlockToLines方法更优雅的方法是什么?
using System;
using System.Collections.Generic;
using System.Linq;
namespace TestConvert9922
{
class Program
{
static void Main(string[] args)
{
string testBlock = "line one" + Environment.NewLine +
"line two" + Environment.NewLine +
"line three" + Environment.NewLine +
"line four" + Environment.NewLine +
"line five";
List<string> lines = StringHelpers.ConvertBlockToLines(testBlock);
lines.ForEach(l => Console.WriteLine(l));
Console.ReadLine();
}
}
public static class StringHelpers
{
public static List<string> ConvertBlockToLines(this string block)
{
string fixedBlock = block.Replace(Environment.NewLine, "§");
List<string> lines = fixedBlock.Split('§').ToList<string>();
lines.ForEach(s => s = s.Trim());
return lines;
}
}
}
List<string> newStr = str.Split(new[] { Environment.NewLine }, StringSplitOptions.None).ToList();
这会将连续的换行符保留为空字符串(请参阅StringSplitOptions )
No need to convert to your special sign: 无需转换为您的特殊标志:
List<string> strings = str.Split(new string[] {Environment.NewLine}, StringSplitOptions.None).ToList();
strings.ForEach(s => s = s.Trim());
Have you tried splitting on newline/carriage return and using the IEnumerable ToList extension? 您是否尝试拆分换行/回车并使用IEnumerable ToList扩展?
testBlock.Split( new char[] { '\n', '\r' }, StringSplitOptions.RemoveEmptyEntries )
.ToList()
If you want to keep empty lines but may have both linefeed and carriage return. 如果你想保留空行,但可能同时有换行和回车。
textBlock.Replace( "\r\n", "\n" ).Replace( "\r", "\n" ).Split( '\n' ).ToList();
Hmm. 嗯。 You know that
string
now has a .Split() that takes a string[]
array, right? 你知道
string
现在有一个.Split(),它接受一个string[]
数组,对吗?
So ... 所以......
string[] lines = data.Split(
new string[1]{ Environment.NewLine },
StringSplitOptions.None
);
ou can use RegEx.Split to split directly using the Enviroment.NewLine. 您可以使用RegEx.Split直接使用Enviroment.NewLine进行拆分。
public static List<string> ConvertBlockToLines(this string block)
{
return Regex.Split(block, Environment.NewLine).ToList();
}
LINQ! LINQ!
var linesEnum = testBlock.Split(new string[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries).AsEnumerable();
List<string> lines = linesEnum.ToList();
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