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文本框数组求和有关问题

Jun 13, 2016 pm 01:28 PM
gt lt quot type

文本框数组求和问题
HI 各位大大
  我这里碰到这样一个问题,我在PHP中了个 文本框数组
  for($i=1;$i   {
 echo "";
}

  我该如何做可以使得我在每个文本框中输入的内容进行合计(求和),并显示出来?

------解决方案--------------------

HTML code



<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>
<script type="text/javascript">
window.onload = function() {
    var obj = document.getElementsByName('abc[]');
    var obj_count = document.getElementById('count');
    for (var i = 0; i < obj.length; i ++) {
        obj[i].onkeyup = function() {
            var count = 0;
            for (var j = 0; j < obj.length; j ++) {
                var v = parseInt(obj[j].value) || 0;
                count += v;
            }
            obj_count.innerHTML = count;
        }
    }
}
</script>



<input type="text" name="abc[]" value="">
<br>
<input type="text" name="abc[]" value="">
<br>
<input type="text" name="abc[]" value="">
<br>
<input type="text" name="abc[]" value="">
<br>
<input type="text" name="abc[]" value="">
<br>
<input type="text" name="abc[]" value="">
<br>
<input type="text" name="abc[]" value="">
<br>
<input type="text" name="abc[]" value="">
<br>
<input type="text" name="abc[]" value="">
<br>
<div id="count"></div>


<br><font color="#e78608">------解决方案--------------------</font><br>用parseFloat()代替parseInt()
<br><font color="#e78608">------解决方案--------------------</font><br>额,可以js算好再ajax交上去,也可以做个表单直接交上去,也可以ajax直接交上去。 <div class="clear">
                 
              
              
        
            </div>
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