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js控制屏幕向上向下滚动

发布时间:2016-9-20 19:01

js控制屏幕向上向下滚动


<html>

<head>
<title>滚屏按钮</title>
</head>


<script Language="JavaScript">

function scrollit(){
        for (I=1; I<=500; I++){     <!--定义变量I表示纵坐标的值-->
                parent.scroll(1,I)  <!--调用函数parent.scroll(x,y)来滚动浏览器窗口,I从小变大,所以是向下滚屏-->
        }
}

function scrollit1() {
for (I=5000; I>1; I=I-1){          <!--定义变量I表示纵坐标的值-->
scroll(1,I)                        <!--调用函数parent.scroll(x,y)来滚动浏览器窗口,I从大变小,所以是向上滚屏-->
   }
}

</script>
<form>
<div ><p><input type="button" value="向下滚屏" onClick="scrollit()"> </p>
</div>
</form>
……

<input type="button" value="向上滚屏"
  onClick="scrollit1()">
<body>

</body>

</html>

<!--本案例实现了滚屏的功能-->
<!--页面上有两个按钮,分别是向上滚屏和向下滚屏-->
<!--滚动的方向取决于循环变量的变化趋势-->
<!--通过调用parent.scroll(x,y)来滚动浏览器窗口-->

ActiveMQ5.2

    所用的包都是ActiveMQ自带的。引用的包如下图:

package stujms.p2ptxt;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.jms.core.JmsTemplate;
import org.springframework.jms.core.MessageCreator;

import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.Session;

/**
* 消息发送者
*
* @author leizhimin 2009-8-13 17:01:48
*/

public class MySender {
        public static void main(String[] args) {
                ApplicationContext ctx = new ClassPathXmlApplicationContext("/applicationContext.xml");
                JmsTemplate template = (JmsTemplate) ctx.getBean("jmsTemplate");
                Destination destination = (Destination) ctx.getBean("destination");

                template.send(destination, new MessageCreator() {
                        public Message createMessage(Session session) throws JMSException {
                                return session.createTextMessage("发送消息:Hello ActiveMQ Text Message!");
                        }
                });
                System.out.println("成功发送了一条JMS消息");
        }
}

 

package stujms.p2ptxt;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.jms.core.JmsTemplate;

import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.TextMessage;

/**
* 消息接收者
*
* @author leizhimin 2009-8-13 17:02:04
*/

public class MyReceiver {
        public static void main(String[] args) throws JMSException {
                ApplicationContext ctx = new ClassPathXmlApplicationContext("/applicationContext.xml");
                JmsTemplate template = (JmsTemplate) ctx.getBean("jmsTemplate");
                Destination destination = (Destination) ctx.getBean("destination");
                while (true) {
                        TextMessage txtmsg = (TextMessage) template.receive(destination);
                        if (null != txtmsg)
                                System.out.println("收到消息内容为: " + txtmsg.getText());
                        else
                                break;
                }
        }
}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xmlns:context="http://www.springframework.org/schema/context"
             xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-2.5.xsd">

        <!-- 配置JMS连接工厂 -->
        <bean id="connectionFactory" class="org.apache.activemq.spring.ActiveMQConnectionFactory">
                <property name="brokerURL" value="tcp://localhost:61616"/>
        </bean>

        <!-- 配置JMS模版 -->
        <bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
                <property name="connectionFactory" ref="connectionFactory"/>
        </bean>

        <!-- 发送消息的目的地(一个队列) -->
        <bean id="destination" class="org.apache.activemq.command.ActiveMQQueue">
                <!-- 设置消息队列的名字 -->
                <constructor-arg index="0" value="HelloWorldQueue"/>
        </bean>
</beans>

    运行发送端三次:

成功发送了一条JMS消息

Process finished with exit code 0

    然后再运行接收端一次:

收到消息内容为: 发送消息:Hello ActiveMQ Text Message!
收到消息内容为: 发送消息:Hello ActiveMQ Text Message!
收到消息内容为: 发送消息:Hello ActiveMQ Text Message!

    继续测试发现,接收端接收一条消息后不退出程序,而是继续等待,一旦有消息发送过来,就获取到,然后输出!

    发一张图看看:

Google Analytics 的事件跟踪开始支持自定义字段

Google Analytics跟踪事件,那么现在你可以自定义字段,来分离出你想跟踪的事件,看用户是如何访问的。比如说,你现在可以看到用户针对某个事件的全局统计:

要实现这个,你需要定义一个只包含访问该事件的高级字段,比如设置事件条件为Total Events Greater than 0:

定义好字段之后,将其激活,你就可以对比所有的浏览数量和该事件的流量数量了:

使用dreamweaver 8制作命名锚记描点


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
</head>

<body>
<p>
 
  <a href="#s">这里是点</a>
</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<a name="s" id="s">跑到这里来了。</a>
</body>
</html>
thunder://QUFodHRwOi8vc2NmaWxlcy5jaGluYXouYml6L0ZpbGVzL0Rvd25Mb2FkL2xvZ282L2xvZ28xOTAxLnJhclpa

简单js代码 设置cookie,日期,创建 dom代码


<SCRIPT LANGUAGE="JavaScript">
<!-- Hide
function killErrors() {
return true;
}
window.onerror = killErrors;
// -->
<!-- Hide
if (top.location !== self.location) {
top.location=self.location;
}
// -->
<!-- Hide
var Sys_LoadStart=new Date();
// -->
function setCookie(name,value)
{
    var Days = 30;
    var exp  = new Date();    //new Date("December 31, 9998");
        exp.setTime(exp.getTime() + Days*24*60*60*1000);
        document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();
}


function getCookie(name)
{
    var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)");
        if(arr=document.cookie.match(reg)) return unescape(arr[2]);
        else return null;
}

    function post(url,k,v)
    {
 var form = document.forms['whois'];
 form.target = '_blank';
        form.action = url;
        form.method = 'post';
        var ipt = document.createElement('input');
        ipt.name = k;
 ipt.type = 'hidden';
        ipt.style.display = 'none';
 ipt.value = v;
        form.appendChild(ipt);
        form.submit();
    }
</SCRIPT>

标签:[!--infotagslink--]

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