看一下代码:stringexpression="x&~y->(s+t)&z";varexprCharsNoWhitespace=expression.Except(new[]{'','\t'}).ToList();varexprCharsNoWhitespace_2=expression.Replace("","").Replace("\t","").ToList();//outputforexaminationConsole.WriteLine(exprCharsNoWhitespace.Aggregate("",(a,x)=>a+x));Console.WriteLine(expr