C#Split()处理字符串，错误的将U.S 或者 2.5hours分成两段的问题

主要思路： 注:warehouse 为字符串数组，newstxt为要处理字符串

1. 用C#中字符串的split()方法，以“.”为标志，将字符串切分成n段字符串放到warehouse字符串数组中。
2. split()方法会错误的将形如U.S或者2.5hours的分到两个数组中
3. 这样的两个数组有一个规律，前者数组的末尾字符是数字或者大写字母，后者的开头字符对应的是数字或者大写字母。
4. 如果遇到着这种情况，就将两个数组合并成一个字符串，存放到前者字符串中，后者字符串由后面的字符串覆盖，以此类推，一直遍历到最后一个数组把倒数第二个数组的字符串给覆盖，数组长度减一。

string[] warehouse = newstxt.Split('.');
                Boolean markItNumber = false;
                Boolean markItLetter = false;
                StringBuilder sb = new StringBuilder();
                int count1 = 0;
                int mark = -1;
                int para_len = warehouse.Length;
                Console.WriteLine("


******************调试台******************");
                //对特殊情况进行处理 例如U.S 1.5hours
                char c = '0';
                                         for (int o = 0; o < para_len; o++)
                            {
                                Console.WriteLine("开头字母"+ warehouse[o][0]+"结尾字母"+ warehouse[o][warehouse[o].Length-1]+
                                    "markItLetter" + markItLetter+ "markItNumber"+ markItNumber);
                                if (warehouse[o].Length > 0)
                                {
                                    //如果开头是大写字母，那么检查上一句是否是大写字母结尾，如果是，那么把两句合并成一句
                                    if (warehouse[o][0] >= 'A' && warehouse[o][0] <= 'Z')
                                    {
                                        if (markItLetter)//上一句是大写字母结尾
                                        {
                                            Console.WriteLine("Last End:" + c + " Now Begin：" + warehouse[o][0]);
                                            warehouse[mark] = warehouse[mark] + "." + warehouse[o];
                                            //将两个字符串合并，数组长度减1
                                            for (int k = mark + 1; k < para_len - 1; k++)
                                            {
                                                warehouse[k] = warehouse[k + 1];
                                            }
                                            para_len--;
                                            --o;
                                            // 重新从最新合并的字符串开始处理
                                        }
                                        markItLetter = false;

                                    }
                                    else if (warehouse[o][0] >= '0' && warehouse[o][0] <= '9')
                                    {
                                        if (markItNumber) //上一句是数字结尾
                                        {
                                            Console.WriteLine("Last End:" + c + " Now Begin:" + warehouse[o][0]);
                                            warehouse[mark] = warehouse[mark] + "." + warehouse[o];
                                            //将两个字符串合并，数组长度减1
                                            for (int k = mark + 1; k < para_len - 1; k++)
                                            {
                                                warehouse[k] = warehouse[k + 1];
                                            }
                                            para_len--;
                                            --o;
                                        }
                                        markItNumber = false;

                                    }
                                     if(warehouse[o][warehouse[o].Length-1]>='A' && warehouse[o][warehouse[o].Length - 1] <= 'Z')
                                    {
                                        markItLetter = true;
                                        mark = o;
                                        c = warehouse[o][warehouse[o].Length - 1];
                                        Console.WriteLine("Last End:" + c );
                                    }
                                    else if(warehouse[o][warehouse[o].Length - 1]>='0' && warehouse[o][warehouse[o].Length - 1] <= '9')
                                    {
                                        
                                        markItNumber = true;
                                        mark = o;
                                        c = warehouse[o][warehouse[o].Length - 1];
                                        Console.WriteLine("Last End:" + c);
                                    }
                                   
                                   
                                }
                            }
                            len = para_len;
                                            Console.WriteLine("


******************调试结束******************");