c# 后台拼接分页Html

  public static string ReplaceStr(string originalStr, string oldStr, string newStr)
        {
            if (string.IsNullOrEmpty(oldStr))
            {
                return "";
            }
            return originalStr.Replace(oldStr, newStr);
        }

  public static string OutPageList(int pageSize, int pageIndex, int totalCount, string linkUrl, int centSize)
        {
            //计算页数
             || pageSize < )
            {
                return "";
            }
            int pageCount = totalCount / pageSize;
            )
            {
                return "";
            }
            )
            {
                pageCount += ;
            }
            )
            {
                return "";
            }
            StringBuilder pageStr = new StringBuilder();
            string pageId = "__id__";
            ).ToString()) + "\">«上一页</a>";
            ).ToString()) + "\">下一页»</a>";
            ") + "\">1</a>";
            string lastStr = "<a href=\"" + ReplaceStr(linkUrl, pageId, pageCount.ToString()) + "\">" + pageCount.ToString() + "</a>";

            )
            {
                firstBtn = "<span class=\"disabled\">«上一页</span>";
            }
            if (pageIndex >= pageCount)
            {
                lastBtn = "<span class=\"disabled\">下一页»</span>";
            }
            )
            {
                firstStr = "<span class=\"current\">1</span>";
            }
            if (pageIndex == pageCount)
            {
                lastStr = "<span class=\"current\">" + pageCount.ToString() + "</span>";
            }
            ); //中间开始的页码
            if (pageIndex < centSize)
                firstNum = ;
            ) + ); //中间结束的页码
            if (lastNum >= pageCount)
                lastNum = pageCount - ;
            pageStr.Append("<span>共" + totalCount + "记录</span>");
            pageStr.Append(firstBtn + firstStr);
            if (pageIndex >= centSize)
            {
                pageStr.Append("<span>...</span>\n");
            }
            for (int i = firstNum; i <= lastNum; i++)
            {
                if (i == pageIndex)
                {
                    pageStr.Append("<span class=\"current\">" + i + "</span>");
                }
                else
                {
                    pageStr.Append("<a href=\"" + ReplaceStr(linkUrl, pageId, i.ToString()) + "\">" + i + "</a>");
                }
            }
            )))
            {
                pageStr.Append("<span>...</span>");
            }
            pageStr.Append(lastStr + lastBtn);
            return pageStr.ToString();
        }