JavaScript实现全选，全不选等效果。。。

  1. <!DOCTYPE html>
  2. <html>
  3.   <head>
  4.     <title>JavaScript全选练习</title>
  5.     <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  6.     <script type="text/javascript" >
  7.         function chooseAll()//全选
  8.         {
  9.             var a=document.getElementsByName("box");
  10.             for(var i=0;i<a.length;i++)
  11.             {
  12.                 a[i].checked=true;
  13.             }
  14.         }
  15.         function chooseNo()//全不选
  16.         {
  17.             var a=document.getElementsByName("box");
  18.             for(var i=0;i<a.length;i++)
  19.             {
  20.                 a[i].checked=false;
  21.             }
  22.         }
  23.         function chooseRe()//反选
  24.         {
  25.             var a=document.getElementsByName("box");
  26.             for(var i=0;i<a.length;i++)
  27.             {
  28.                 if(a[i].checked==false) a[i].checked=true;
  29.                 else a[i].checked=false;
  30.             }
  31.         }
  32.         function chooseAllNo()//全选、全不选
  33.         {
  34.             var a=document.getElementsByName("box");
  35.             var b=document.getElementById("abox");
  36.             if(b.checked==true)
  37.             {
  38.                 for(var i=0;i<a.length;i++)
  39.                 {
  40.                     a[i].checked=true;
  41.                 }
  42.             }
  43.             else
  44.             {
  45.                 for(var i=0;i<a.length;i++)
  46.                 {
  47.                     a[i].checked=false;
  48.                 }
  49.             }
  50.         }
  51.     </script>
  52.   </head>
  53.   <body>
  54.       <input type="checkbox" id="abox" onclick="chooseAllNo();">全选/全不选<br>
  55.       <input type="checkbox" name="box">张三<br>
  56.       <input type="checkbox" name="box">李四<br>
  57.       <input type="checkbox" name="box">王五<br>
  58.       <input type="checkbox" name="box">赵六<br>
  59.       <input type="button" value="全选" onclick="chooseAll();"/>
  60.       <input type="button" value="全不选"  onclick="chooseNo();"/>
  61.       <input type="button" value="反选"  onclick="chooseRe();"/>
  62.   </body>
  63. </html>

运行示意：

aaarticlea/png;base64,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" alt="" />

JavaScript案例四：全选练习的更多相关文章

  1. JavaScript Web API 全选反选案例

    全选反选 全选和反选功能,在开发中可以说是应用得非常多的,以下通过案例分解,学习如何使用JS实现全选反选功能. 该功能可分为如下三大步骤: 1.全选 1.1 获取父checkbox,注册点击事件 1. ...

  2. javascript: checked 不可全选

    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/ ...

  3. DOM操作案例之--全选与反选

    全选与反选在表单类的项目中还是很常见的,电商项目中的购物车一定少不了这个功能. 下面我只就用一个简单的案例做个演示吧. <div class="wrap"> <t ...

  4. JavaScript基础6——全选示例

    <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title> ...

  5. JavaScript实现单击全选 ,再次点击取消全选

                 以下为实现思路,已测试,供参考 var allSet = document.getElementById('allSet');//获取全选按钮元素 var a = allSe ...

  6. js(四) 全选/全不选和反选

    思路:通过选择全选的选框的状态stuts 即true/false控制其他选框. 首先 我们要通过.checked方法获取选框(全选/全不选)的值. function all(){ var stuts= ...

  7. html javascript checkbox实现全选功能

    html代码 <input type="checkbox" id="all" />all</input> <input type= ...

  8. Knockout案例： 全选

  9. JavaScript CheckBox实现全选和部分选择

    <html> <head> <script> function BatchAddToBasket() { var questionNums = ''; var ch ...

随机推荐

  1. seajs+spm之再研究

    好久没有用seajs了,之前对spm也只是一知半解,这些天再次拿起来研究.谈谈我的认识与理解. 声明:本文不适合对seajs完全不了解的同学阅读.对于想知道seajs来龙去脉以及spm相关的同学&qu ...

  2. PHP: Local 和 Global 作用域

    函数之外声明的变量拥有 Global 作用域,只能在函数以外进行访问. 函数内部声明的变量拥有 LOCAL 作用域,只能在函数内部进行访问. 下面的例子测试了带有局部和全局作用域的变量: 在上例中,有 ...

  3. 第20章 使用LNMP架构部署动态网站环境

    章节概述: 本章节将从Linux系统的软件安装方式讲起,带领读者分辨RPM软件包与源码安装的区别.并能够理解它们的优缺点. Nginx是一款相当优秀的用于部署动态网站的服务程序,Nginx具有不错的稳 ...

  4. Ubuntu 下 LAMP 的配置文件路径 转：

      配置文件路径: 1>apache 的配置文件路径 /etc/apache2/apache2.conf 2>apache 网站字符编码配置路径 /etc/apache2/conf.d/c ...

  5. 练习英语ing——[POJ1004]Financial Management

    [POJ1004]Financial Management 试题描述 Larry graduated this year and finally has a job. He's making a lo ...

  6. [BZOJ2502]清理雪道

    [BZOJ2502]清理雪道 试题描述 滑雪场坐落在FJ省西北部的若干座山上. 从空中鸟瞰,滑雪场可以看作一个有向无环图,每条弧代表一个斜坡(即雪道),弧的方向代表斜坡下降的方向. 你的团队负责每周定 ...

  7. DICOM医学图像处理：storescp.exe与storescu.exe源码剖析，学习C-STORE请求

    转载:http://blog.csdn.net/zssureqh/article/details/39213817 背景: 上一篇专栏博文中针对PACS终端(或设备终端,如CT设备)与RIS系统之间w ...

  8. HTML前端--各种小案例

    掬一捧清水,放逐在江河,融入流逝的岁月,将心洗净; 捻一缕心香,遥寄在云端,在最深的红尘里重逢,将心揉碎; 望一程山水,徘徊在月下,在相思渡口苦守寒冬,将心落寞. 案例一: 隐藏扩展域,并去掉afte ...

  9. [ruby on rails] 跟我学之(3)基于rails console的查增删改操作

    本章节展开对model的介绍:包括查增删改操作.紧接着上面一节<[ruby on rails] 跟我学之HelloWorld> 创建模型 使用命令创建模型 创建表post,默认自带两栏位 ...

  10. 用sed删除空行

    用sed删除空行 我的代码如下:class Song def initialize(name)        @name = name    end def tell        puts @nam ...