JS realizes the effect of simple keyboard typing_javascript skills-JS Tutorial-php.cn

JS realizes the effect of simple keyboard typing_javascript skills

WBOY

Release： 2016-05-16 16:02:40

Original

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Process analysis as code:

<html>
<head>
<title>打字效果</title>
<meta http-equiv="Content-Type" Content="text/html;charset=gb2312" />
<style type="text/css">
body{
  font-size:14px;
  font-color:#purple;
  font-weight:bolder;
}
</style>
</head>
<body>
最新内容: <a id = "Hotnews" href="" target="_blank"> </a>  
<script language="javascript">
  var NewsTime = 2000;    //每条信息完整出现后停留时间
  var TextTime = 100;    //每条信息中的字出现的间隔时间
  
  var newsi = 0;
  var txti = 0;
  var txttimer;   //调用setInterval的返回值，用于取消对函数的周期性执行
  var newstimer;
  
  var newstitle = new Array();    //以数组形式保存每个信息的标题
  var newshref = new Array();   //以数组形式保存信息标题的链接
  
  newstitle[0] = "欢迎来到我的博客";   //显示在网页上的文字内容和对应的链接
  newshref[0] = "http://www.jb51.net/guihailiuli/";
  
  newstitle[1] = "http://www.jb51.net/guihailiuli/";
  newshref[1] = "http://www.jb51.net/guihailiuli/";
  
  newstitle[2] = "博客园欢迎你哦";
  newshref[2] = "http://www.jb51.net";
  
  newstitle[3] = "ByeBye~~";
  newshref[3] = "http://www.jb51.net";
  
  function shownew(){
    hwnewstr=newstitle[newsi];    //通过newsi传递，依次显示数组中的内容
    newslink=newshref[newsi];     //依次显示文字对应的链接
     
    if(txti>=hwnewstr.length){
      clearInterval(txttimer);  //一旦超过要显示的文字长度，清除对shownew()的周期性调用
      clearInterval(newstimer); 
      newsi++;   //显示数组中的下一个
      
      if(newsi>=newstitle.length){
        newsi = 0;  //当newsi大于信息标题的数量时，把newsi清零，重新从第一个显示
      }
      newstimer = setInterval("shownew()",NewsTime);   //间隔2000ms后重新调用shownew()
      txti = 0;  
      return;
    }
    clearInterval(txttimer);  
    document.getElementById("Hotnews").href = newslink;  
    document.getElementById("Hotnews").innerHTML = hwnewstr.substring(0,txti+1);   //截取字符，从第一个字符到txti+1个字符
    
    txti++;  //文字一个个出现
    txttimer = setInterval("shownew()",TextTime);   
  }
  shownew();

</script>
</body>
</html>

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The above is the entire content of this article. I hope it can be helpful to everyone in learning javascript.