搜索關鍵字高亮顯示方法

        方法一、完成查找關鍵字字體高亮顯示 string serkeys(string , string)#region 方法一、完成查找關鍵字字體高亮顯示 string serkeys(string , string)
        /**//// <summary>
        /// 完成查找關鍵字字體高亮顯示
        /// </summary>
        /// <param name="str">字符串</param>
        /// <param name="sqlkey">字符串關鍵詞</param>
        /// <returns>返回字符串</returns>
        public static string serkeys(string str,string sqlkey)

        ...{
            
            //sqlstr 待查找的關鍵字
            //str 已經查找到帶有關鍵字的字符串
            
        
            int len=sqlkey.Length;
            int len1=str.Length;

            string onesqlstr,rproname="";
            rproname=str;
            //去掉關鍵字頭和尾的空格，及將關鍵詞
            sqlkey=sqlkey.Trim();
            if (sqlkey.IndexOf(" ")>0)
            ...{
                string [] kewArray=sqlkey.Split('' '');
                

                rproname=str;
                if (kewArray.Length>0)
                ...{
                    for(int i=0;i<=kewArray.Length-1;i++)
                    ...{
                        onesqlstr =kewArray[i];
                        if(onesqlstr!="" && onesqlstr!=null)
                        ...00000">{
                            if( str.IndexOf(onesqlstr)>=0)
                           &n    rproname = rproname.Replace(onesqlstr,"<span style=''color:#ff0033''>"+onesqlstr+"</span>");
                        }
                    }
                }
                            
            }
            else
            ...{
                onesqlstr=sqlkey;
                if( str.IndexOf(onesqlstr)>=0)
                    rproname = rproname.Replace(onesqlstr,"<span style=''color:#ff0033''>"+onesqlstran>+"</span>");
            }
            return rproname;
       }
        #endregion

方法二、完成查找關鍵字字體高亮顯示，精確到每個字符#region 方法二、完成查找關鍵字字體高亮顯示，精確到每個字符
        /**//// <summary>
        /// 完成查找關鍵字字體高亮顯示，精確到每個字符
        /// </summary>
        /// <param name="str">字符串</param>
        /// <param name="sqlkey">字符串關鍵詞</param>
        /// <returns>返回字符串</returns>
        public static string ;serkeys_char(string str,string sqlkey)
        ...{
            
            //sqlstr 待查找的關鍵字
            //str 已經查找到帶有關鍵字的字符串
            int len=sqlkey.Length;
            int len1=str.Length;
            string onesqlstr,pproname,rproname="";
            string [] memo= new string[len1];
            
            for(int j=0;j<=len1-1;j++)
            ...{
                onesqlstr=sqlkey;
                pproname=str.Substring(j,1);
                if (onesqlstr.ToLower().IndexOf(pproname.ToLower())>=0)
                ...{
[j]="<span style=''color:#ff0033''>"+pproname+"</span>";
                }
                else
                ...{
                    memo[j]=pproname;
 

               }        
            }
            for(int i=0;i<=memo.Length-1;i++)
            ...{
                rproname+=memo[i];
            }
            ="COLOR: #0000ff">return rproname;
            
        }
        #endregion