.net core计算矩形面级

using System;
namespace StringApplication
{
    class StringProg
    {
        static void Main（string[] args）
        {
            string[] starray = new string[]{“Down the way nights are dark“
    “And the sun shines daily on the mountain top“
    “I took a trip on a sailing ship“
    “And when I reached Jamaica“
    “I made a stop“};

            string str = String.Join（“\n“ starray）;
            Console.WriteLine（str）;
            Console.ReadKey（）;
        }
    }
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2019-11-19 09:41  Rectangle\
     目录           0  2019-11-15 15:38  Rectangle\.vs\
     目录           0  2019-11-15 15:41  Rectangle\.vs\Rectangle\
     目录           0  2019-11-15 15:41  Rectangle\.vs\Rectangle\DesignTimeBuild\
     文件      223514  2019-11-20 15:25  Rectangle\.vs\Rectangle\DesignTimeBuild\.dtbcache
     目录           0  2019-11-15 15:38  Rectangle\.vs\Rectangle\v16\
     文件       36352  2019-11-20 15:25  Rectangle\.vs\Rectangle\v16\.suo
     目录           0  2019-11-15 15:38  Rectangle\.vs\Rectangle\v16\Server\
     目录           0  2019-11-20 15:25  Rectangle\.vs\Rectangle\v16\Server\sqlite3\
     文件           0  2019-11-15 15:38  Rectangle\.vs\Rectangle\v16\Server\sqlite3\db.lock
     文件      679936  2019-11-20 15:25  Rectangle\.vs\Rectangle\v16\Server\sqlite3\storage.ide
     目录           0  2019-11-20 15:25  Rectangle\ConsoleApp1\
     文件         320  2019-11-20 14:11  Rectangle\ConsoleApp1\ConsoleApp1.csproj
     文件         509  2019-11-20 15:25  Rectangle\ConsoleApp1\Program.cs
     目录           0  2019-11-19 09:41  Rectangle\ConsoleApp1\bin\
     目录           0  2019-11-19 09:41  Rectangle\ConsoleApp1\bin\Debug\
     目录           0  2019-11-20 14:09  Rectangle\ConsoleApp1\bin\Debug\netcoreapp3.0\
     文件         425  2019-11-20 14:11  Rectangle\ConsoleApp1\bin\Debug\netcoreapp3.0\ConsoleApp1.deps.json
     文件        4096  2019-11-20 14:31  Rectangle\ConsoleApp1\bin\Debug\netcoreapp3.0\ConsoleApp1.dll
     文件      159744  2019-11-20 14:31  Rectangle\ConsoleApp1\bin\Debug\netcoreapp3.0\ConsoleApp1.exe
     文件         512  2019-11-20 14:31  Rectangle\ConsoleApp1\bin\Debug\netcoreapp3.0\ConsoleApp1.pdb
     文件         222  2019-11-20 14:09  Rectangle\ConsoleApp1\bin\Debug\netcoreapp3.0\ConsoleApp1.runtimeconfig.dev.json
     文件         154  2019-11-20 14:09  Rectangle\ConsoleApp1\bin\Debug\netcoreapp3.0\ConsoleApp1.runtimeconfig.json
     目录           0  2019-11-20 14:09  Rectangle\ConsoleApp1\obj\
     文件         149  2019-11-20 14:09  Rectangle\ConsoleApp1\obj\ConsoleApp1.csproj.nuget.cache
     文件        2187  2019-11-20 14:09  Rectangle\ConsoleApp1\obj\ConsoleApp1.csproj.nuget.dgspec.json
     文件        1150  2019-11-19 09:41  Rectangle\ConsoleApp1\obj\ConsoleApp1.csproj.nuget.g.props
     文件         294  2019-11-19 09:41  Rectangle\ConsoleApp1\obj\ConsoleApp1.csproj.nuget.g.targets
     目录           0  2019-11-19 09:41  Rectangle\ConsoleApp1\obj\Debug\
     目录           0  2019-11-20 14:31  Rectangle\ConsoleApp1\obj\Debug\netcoreapp3.0\
     文件        1016  2019-11-20 14:09  Rectangle\ConsoleApp1\obj\Debug\netcoreapp3.0\ConsoleApp1.AssemblyInfo.cs
............此处省略47个文件信息