radio和checkbox默认选择的实现方法
这是扩展yibing的《select默认选择的实现方法》!<select name="wuyeleixing" size="1">
        <option <?php if($myrow[wuyeleixing]==1) print("selected");?> value="1">住宅</option>
        <option <?php if($myrow[wuyeleixing]==2) print("selected");?> value="2">办公室</option>
        <option <?php if($myrow[wuyeleixing]==3) print("selected");?> value="3">营业房</option>
        <option <?php if($myrow[wuyeleixing]==4) print("selected");?> value="4">厂房</option>
        <option <?php if($myrow[wuyeleixing]==5) print("selected");?> value="5">仓库</option>
        <option <?php if($myrow[wuyeleixing]==6) print("selected");?> value="6">地块</option>
        <option <?php if($myrow[wuyeleixing]==7) print("selected");?> value="7">综合楼</option>
        <option <?php if($myrow[wuyeleixing]==8) print("selected");?> value="8">农牧场</option>
      
      <option <?php if($myrow[wuyeleixing]==9) print("selected");?> value="9">商住楼</option>
        <option <?php if($myrow[wuyeleixing]==10) print("selected");?> value="10">宾馆酒楼</option>
        <option <?php if($myrow[wuyeleixing]==11) print("selected");?> value="11">校舍</option>  
      
      </select>

  <input type="radio" name="dishu" value="3"  <?php if($myrow[dishu]==3) print("checked");?>>空白
      <input type="radio" name="dishu" value="1"  <?php if($myrow[dishu]==1) print("checked");?>>出让
      <input type="radio" name="dishu" value="2" <?php if($myrow[dishu]==2) print("checked");?>>划拨
      <input type="radio" name="dishu" value="4" <?php if($myrow[dishu]==4) print("checked");?>>集体
   <input
          name="fujia_jiaju" type="checkbox" value="jiaju" <?php if($myrow[fujia_jiaju]) print("checked");?>></font></strong>家 具</td>
          <td width="108" height="1"><strong><font color="#008080" face="楷体_GB2312"><input
          name="fujia_chuju" type="checkbox" value="chuju" <?php if($myrow[fujia_chuju]) print("checked");?>></font></strong>厨 具</td>
          <td width="96" height="1"><strong><font color="#008080" face="楷体_GB2312"><input
          name="fujia_woju" type="checkbox" value="woju" <?php if($myrow[fujia_woju]) print("checked");?>></font></strong>卧 具</td>
          <td width="99" height="1"><strong><font color="#008080" face="楷体_GB2312"><input
          name="fujia_TV" type="checkbox" value="TV" <?php if($myrow[fujia_TV]) print("checked");?>></font></strong>电视机 
      
这些表单域的配合使用,适合修改一些数据库记录,并且保持原记录与添加时一样!