>>309
ほれ

var dict = new Dictionary<string, string>();

var list = new List<string>() { "りんご(100円)", "バナナ(200円)", "みかん(300円)" }.Select( x => new { row = x.Split( new char[] { '(', ')' } ) } );
foreach( var item in list )
{
if( item.row.Length > 1 )
dict.Add( item.row[0], item.row[1] );
}

foreach( var kv in dict )
Console.WriteLine( kv );