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   源码介绍

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 //中缀转后缀
        public string Convert(string str)
        {
            str ="#";
            List<char> strJSS = str.ToList();
            string Num = "", HZstr = "";
            int i = 0;
            Stack stack = new Stack();
            while(strJSS[i].ToString()!="#"){
                if (IsYSF(strJSS[i].ToString()))
                {
                    if (stack.Count == 0)
                    {
                        stack.Push(strJSS[i]);
                    }
                    else
                    {
                        if (strJSS[i].ToString() == ")")
                        {
                            var s = "";
                            while (s != "(")
                            {
                                s = stack.Pop().ToString();
                                if (Num != "")
                                {
                                    HZstr = ",";
                                    Num = "";
                                }
                               if(s!="(") HZstr = s;
                            }
                            
                        }
                        else
                        {
                            if (Precedence(stack.Peek().ToString(), strJSS[i].ToString()))
                            {
                                //if (strJSS[i].ToString() == "-" && stack.Peek().ToString() == "-") { stack.Push(" "); }
                                //else { stack.Push(strJSS[i]); }

                                stack.Push(strJSS[i]);
                            }
                            else
                            {
                                HZstr = ",";
                                Num = "";
                                HZstr = stack.Pop();
                                stack.Push(strJSS[i]);
                            }
                        }
                    }
                    
                    if (Num != "")
                    {
                        HZstr = ",";
                        Num = "";
                    }
                }
                else
                {
                    Num = strJSS[i].ToString();
                    HZstr = strJSS[i].ToString();
                }
                i ;
            }
            HZstr = ",";
            while (stack.Count > 0)
            {
                HZstr = stack.Pop();
            }
            HZstr = "#";
            return HZstr;
        }