Question

如果我有这个函数给了我那么多的div，我怎么能改变它得到这样的结果：01 02 03 04 05 06 07？

提前致谢

$(document.body).ready(function() {
  $(document.body).append($(".slide"));
  var n = $(".slide").length;
  $("span").text("0" + n);
})

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>

<span></span>

<div class=slide></div>
<div class=slide></div>
<div class=slide></div>
<div class=slide></div>
<div class=slide></div>
<div class=slide></div>
<div class=slide></div>

Answer 1

Updated fiddle

＆＃13;

$(document.body).ready(function() {
    $( document.body ).append( $( "<div>" ) );
    var n = $( "div" ).length;
    
    for(var i=0; i<n; i++){
    $("span" ).append( "0" + i+'\u00A0');
    }
  })

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<span></span>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>

＆＃13;

Answer 2

＆＃13;

window.onload=function(){
var divs=document.getElementsByTagName('div');
  var span=document.getElementsByTagName('span');
var divsLength=divs.length;
  var count=1;
  
  for(var index=0;index<divsLength;index++)
    {
      var label=document.createElement('label');
      label.innerText='0'+count;
      span[0].append(label);span[0].append(" " );
      count++;
    }
}

＆＃13;

<span></span>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>

＆＃13;

希望这有帮助

Answer 3

https://jsfiddle.net/tsobott7/5/

$(document.body).ready(function() {
  $( document.body ).append( $( "<div>" ) );
  var n = $( "div" ).length;
  var str = "";
  for (var x = 1; x < n; x++) {
    str = str + "\n0" + x;
  }
  $( "span" ).text(str);
})

你可以通过使用for循环来实现。

Answer 4

使用此代码

＆＃13;

$(document.body).ready(function() {
    $( document.body ).append( $( "<div>7th</div>" ) );
    $( "div" ).each(function( index ) {
      ( index + ": " + $( this ).text() );
    });
    
  })

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<span></span>
<div>1st</div>
<div>2nd</div>
<div>3rd</div>
<div>4th</div>
<div>5th</div>
<div>6th</div>

＆＃13;

返回单个div的数量而不仅仅是它们的总数

4 个答案: