我有一个版本的字符串列表(见照片),我想按降序对它们进行排序。
我已经看过一些使用Version类进行比较的解决方案,但是我无法想到任何解决方案,这样可以对整个列表进行排序。实现这一目标的最简单方法是什么?
答案 0 :(得分:10)
这个简单的实现有什么问题?
using System;
using System.Collections.Generic;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
var ver = new List<Version>();
ver.Add(new Version("3.5"));
ver.Add(new Version("3.15"));
ver.Add(new Version("3.10"));
ver.Add(new Version("3.1"));
ver.Sort();
ver.Reverse();
}
}
}
答案 1 :(得分:6)
OrderBy
中显示的标准排序解决方案Version
应该在这种情况下工作,您要求它按 var listOfStrings = new List<string>{"1.2", "2.3", "0.1"};
listOfStrings = listOfStrings.OrderBy(x => new Version(x)).ToList();
订购:
{{1}}
答案 2 :(得分:3)
您可以使用IComparable
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication2
{
class Program
{
static void Main(string[] args)
{
List<string> data = new List<string>{
"3.5.0.1", "3.4.1.9", "3.4.1.56", "3.4.1.55", "3.4.1.46",
"3.4.1.45", "3.4.1.44", "3.4.1.30", "3.4.1.3", "3.4.1.22",
"3.4.1.2", "3.4.1.11", "3.4.1.0", "3.4.0.7", "3.4.0.3",
"3.4.0.1", "3.3.0.8", "3.3.0.4", "3.3.0.0", "3.2.0.9",
"3.2.0.6", "3.2.0.3", "3.2.0.27", "3.2.0.20", "3.2.0.15",
"3.2.0.1", "3.2.0.0", "3.1.0.7", "3.1.0.15", "3.1.0.14"
};
List<SortPara> sortPara = data.Select(x => new SortPara(x)).ToList();
data = sortPara.OrderBy(x => x).Select(x => x.strNumbers).ToList();
data = sortPara.OrderByDescending(x => x).Select(x => x.strNumbers).ToList();
}
}
public class SortPara : IComparable<SortPara>
{
public List<int> numbers { get; set; }
public string strNumbers { get; set; }
public SortPara(string strNumbers)
{
this.strNumbers = strNumbers;
numbers = strNumbers.Split(new char[] { '.' }).Select(x => int.Parse(x)).ToList();
}
public int CompareTo(SortPara other)
{
int shortest = this.numbers.Count < other.numbers.Count ? this.numbers.Count : other.numbers.Count;
int results = 0;
for (int i = 0; i < shortest; i++)
{
if (this.numbers[i] != other.numbers[i])
{
results = this.numbers[i].CompareTo(other.numbers[i]);
break;
}
}
return results;
}
}
}
答案 3 :(得分:1)
你应该使用IComparable
作为jdweng,只需编辑一下比较“2.1.0.4”和“2.1”之类的版本:
public int CompareTo(SortPara other)
{
int shortest = this.numbers.Count < other.numbers.Count ? this.numbers.Count : other.numbers.Count;
int results = 0;
for (int i = 0; i < shortest; i++)
{
if (this.numbers[i] != other.numbers[i])
{
results = this.numbers[i].CompareTo(other.numbers[i]);
break;
}
}
if (results != 0)
return results;
if (this.numbers.Count > other.numbers.Count)
return 1;
else if (this.numbers.Count < other.numbers.Count)
return -1;
else
return 0;
}
答案 4 :(得分:0)
这是一个对语义版本控制()进行排序的解决方案。 Nuget.Core 提供了一个 SemanticVersion 类,其操作与.net中的标准Version类非常相似。它将字符串解析为IComparable和IEquatable对象,以便您可以比较多个版本或在集合中对它们进行排序等。
Nuget.Core:https://semver.org(您可以通过nuget提取此库)
https://www.nuget.org/packages/nuget.core/
var rawVersions = new [] {"v1.4.0", "v1.4.0-patch10", "v1.4.0-patch2"};
var versions = rawVersions.Select(v => new SemanticVersion(v));
var sorted = versions.ToList().Sort();
答案 5 :(得分:-4)
关键是要不思考数字
转换
然后您可以排序