暂时不考虑中文，有一段英文，我想按照每行最多100个字符分割，但是单词中间不能割开，请问怎么做？最好用link实现。
完整地写一个给你参考，为了在控制台输出方便，我用的是70个字符
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
string s = @"Four score and seven years ago our fathers brought forth on this continent, a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal. Now we are engaged in a great civil war, testing whether that nation, or any nation so conceived and so dedicated, can long endure. We are met on a great battle-field of that war. We have come to dedicate a portion of that field, as a final resting place for those who here gave their lives that that nation might live. It is altogether fitting and proper that we should do this. But, in a larger sense, we can not dedicate -- we can not consecrate -- we can not hallow -- this ground. The brave men, living and dead, who struggled here, have consecrated it, far above our poor power to add or detract. The world will little note, nor long remember what we say here, but it can never forget what they did here. It is for us the living, rather, to be dedicated here to the unfinished work which they who fought here have thus far so nobly advanced. It is rather for us to be here dedicated to the great task remaining before us -- that from these honored dead we take increased devotion to that cause for which they gave the last full measure of devotion -- that we here highly resolve that these dead shall not have died in vain -- that this nation, under God, shall have a new birth of freedom -- and that government of the people, by the people, for the people, shall not perish from the earth.";
List<string> result = new List<string>();
string last = s.Aggregate("", (string pre, char curr) => {
if (pre.Length > 70)
{
int x = pre.LastIndexOf(' ');
result.Add(pre.Substring(0, x));
return pre.Substring(x + 1) + curr;
}
return pre + curr.ToString();
});
result.Add(last);
foreach (string i in result)
Console.WriteLine(i);
}
}
}
结果：
Four score and seven years ago our fathers brought forth on this
continent, a new nation, conceived in Liberty, and dedicated to the
proposition that all men are created equal. Now we are engaged in a
great civil war, testing whether that nation, or any nation so
conceived and so dedicated, can long endure. We are met on a great
battle-field of that war. We have come to dedicate a portion of that
field, as a final resting place for those who here gave their lives
that that nation might live. It is altogether fitting and proper that
we should do this. But, in a larger sense, we can not dedicate -- we
can not consecrate -- we can not hallow -- this ground. The brave men,
living and dead, who struggled here, have consecrated it, far above
our poor power to add or detract. The world will little note, nor long
remember what we say here, but it can never forget what they did here.
It is for us the living, rather, to be dedicated here to the
unfinished work which they who fought here have thus far so nobly
advanced. It is rather for us to be here dedicated to the great task
remaining before us -- that from these honored dead we take increased
devotion to that cause for which they gave the last full measure of
devotion -- that we here highly resolve that these dead shall not have
died in vain -- that this nation, under God, shall have a new birth of
freedom -- and that government of the people, by the people, for the
people, shall not perish from the earth.
请按任意键继续. . .
主要用到了Aggregate这个LINQ操作符