js 获取多个同名表单的值（同时处理多个同名表单的数据）

来源：互联网发布：东方财富软件编辑：程序博客网时间：2024/06/06 02:10

<html><head><script language="javascript">function check(){var bm_num=0;var names =document.getElementsByName("plan_bm_num[]");for(i=0;i<names.length;i++){bm_num+=names[i].value; document.getElementById('plan_total_renshu').value=bm_num;}}</script></head><body><form name="form1" method="post" action="" >  <p>    <input type="text" name="plan_bm_num[]" id="plan_bm_num[]" value="1">    ,<input type="text" name="plan_bm_num[]"  id="plan_bm_num[]"  value="2">,<input type="text" name="plan_bm_num[]"  id="plan_bm_num[]" value="3">,<input type="text" name="plan_bm_num[]"  id="plan_bm_num[]" value="4"></p>  <p>    <label for="plan_total_renshu"></label>    <input type="text" name="plan_total_renshu" id="plan_total_renshu">  </p>  <p>    <input type="button" name="button" id="button" value="按钮" onClick="check();">  </p></form></body></html>