string str = "af adsf e4afef3 _asdf $adsf"; char[] chr = { ' ', '_', '$' }; //StringSplitOptions.RemoveEmptyEntries去掉空格 string[] st=str.Split(chr,StringSplitOptions.RemoveEmptyEntries); string s2 = "2018-12-12"; char[] cr={'-'}; string[] year= s2.Split(cr, StringSplitOptions.RemoveEmptyEntries); Console.WriteLine("{0}年{1}月{2}日",year[0],year[1],year[2]); Console.ReadKey();