在arcgis9.3中，怎样实现以下操作？

<p><span style="WIDOWS: 2; TEXT-TRANSFORM: none; TEXT-INDENT: 0px; BORDER-COLLAPSE: separate; FONT: medium="medium"  =" class=" Apple-style-span?><span style=" COLOR: medium?=" 0px? -webkit-text-stroke-width: auto; -webkit-text-size-adjust: none; -webkit-text-decorations-in-effect: 0px; -webkit-border-vertical-spacing: -webkit-border-horizontal-spacing: WORD-SPACING: rgb(0,0,0); COLOR: normal; LETTER-SPACING: 2; ORPHANS: WHITE-SPACE: Simsun; medium?=" 14px? FONT-SIZE: rgb(34,34,34); 宋体; FONT-FAMILY: 21px; LINE-HEIGHT: left; TEXT-ALIGN:>请问各位：<span class="Apple-converted-space"> </span><br/>在<font color="#ff0000"><strong>arcgis9.3</strong></font>中，如何实现以下操作：<span class="Apple-converted-space"> </span><br/>1、组合标注：如分子是小班号，分母是面积；<br/>2、分类合并：如按村或乡行政区域进行合并成多边形。</span></span></p>
<p><span style="WIDOWS: 2; TEXT-TRANSFORM: none; TEXT-INDENT: 0px; BORDER-COLLAPSE: separate; FONT: medium="medium"  =" class=" Apple-style-span?><span style=" COLOR: medium?=" 0px? -webkit-text-stroke-width: auto; -webkit-text-size-adjust: none; -webkit-text-decorations-in-effect: 0px; -webkit-border-vertical-spacing: -webkit-border-horizontal-spacing: WORD-SPACING: rgb(0,0,0); COLOR: normal; LETTER-SPACING: 2; ORPHANS: WHITE-SPACE: Simsun; medium?=" 14px? FONT-SIZE: rgb(34,34,34); 宋体; FONT-FAMILY: 21px; LINE-HEIGHT: left; TEXT-ALIGN:></span></span> </p><br/>

1、组合标注在标注里面有，点击expression[表达式]，不过没有横线的，你可以写成下面那样，就有换行效果。<div><div>Function FindLabel ( [Name],[Shape_Area] )</div><div>  FindLabel = [Name]   ; Chr(10) ;   [Shape_Area] </div><div>End Function</div></div><div>2、合并多边形可以先用用条件选中要素，来编辑合并。merge</div>