textarea 内容分段，首行缩进

              $seach  =   array("\r");
              $replace  =   array("</span><span style='text-indent:2em;color:#9fa0a0;font-size:16px;display:inline-block;line-height:30px'>");
              $str = "<span style='text-indent:2em;color:#9fa0a0;font-size:16px;display:inline-block;line-height:30px'>".str_replace($seach,$replace,$company_brief)."</span>";