c# – 使用正则表达式比较两个软件版本号

// Use your favorite comparison operator
var current = new Version("4.0.1.2");
var found = new Version("4.0.1.0");
if (found > current)
{
    Console.WriteLine("Upgrade needed to {0} from {1}",found,current);
}
else
{
    Console.WriteLine("No upgraded needed from {0}",current);
}

或者如果你在枚举中有它们,它可以很好地与LINQ一起使用：

var versions = new [] { "3.0.0.0","3.1.0.0","4.0.1.0","4.0.1.2" };
foreach (var version in versions.Select(Version.Parse)
                                .OrderByDescending(v => v))
{
    Console.WriteLine("{0}",version);
}

// Group them by Major Version first,then sort
foreach (var major in versions.Select(Version.Parse)
                              .GroupBy(v => v.Major)
                              .OrderByDescending(g => g.Key))
{
    Console.WriteLine("{0}: {1}",major.Key,String.Join(",",major.OrderByDescending(v => v)));
}