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C# 統計字串出現的個數

   string str1 = "123AAA456AAAA789AAAAAAA1011";
            string str2 = "123456789AAA23456789AAAA3456789AAAAAAA4567890";
            string str3 = "123456788AAA23456789AAAA3456789AAAAAAA4567890";
            string str4 = "123456788AAA0AAAA0AAAAAAA";
            var strArry = (str1 + "&" + str2 + "
&" + str3 + "&" + str4).Split('&'); //把字串連線為陣列 char[] str1Arry = str1.ToArray(); int js = 0; List<int> TempArry = new List<int>(); for (int i = 0; i < str1Arry.Length; i++) { if (str1Arry[i] == 'A') { js
++; continue; } if (js != 0) //找到A, 不等於A時候執行 { TempArry.Add(js); js = 0; //js歸0 } }