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//統(tǒng)計(jì)某個(gè)字符串中指定字符串出現(xiàn)的次數(shù) 用string.Split()方法實(shí)現(xiàn) static void CountChar() { Console.WriteLine("請輸入一個(gè)字符串："); string s = Console.ReadLine(); Console.WriteLine("請輸入要查詢的子字符串："); string[] sub ={Console.ReadLine()}; string[] arr = s.Split(sub,StringSplitOptions.None); Console.WriteLine("{0}出現(xiàn)的次數(shù)為：{1}",sub[0],arr.Length-1); }
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