<!DOCTYPE?html>
<html>
<head>
<meta?http-equiv="Content-Type"?content="text/html;?charset=utf-8"?/>
<title>練習題</title>
</head>
<body>
<img?src="#"?id="pic">
<button?id="next"?onclick="next()">next</button>
<p?id="description">description</p>
<script>
function?showPic(){
var?Pic?=?document.getElementById("pic");
var?num?=?null;
var?text?=?document.getElementById("description");
var?next?=?document.getElementById("next");
var?list?=?new?Object();
var?list?=?[
{"src":"img/weather/2日8時-3日8時降水量.jpg","href":"http://www.nmc.cn/publish/precipitation/1-7day-precipitation.html","title":"3月2日8時-3日8時全國降水量預報"},
{"src":"img/weather/2日8時-3日8時最低氣溫.jpg","href":"http://www.nmc.cn/publish/temperature/low.html","title":"3月2日8時-3日8時全國最低氣溫預報"},
{"src":"img/weather/3日8時-4日8時最高氣溫.jpg","href":"http://www.nmc.cn/publish/temperature/hight.html","title":"3月3日8時-3月4日8時全國最高氣溫預報"},
{"src":"img/weather/2日8時-3日8時短時強降水.png","href":"http://www.nmc.cn/publish/bulletin/index.html","title":"3月2日8時-3月3日8時全國短時強降水預報"},
{"src":"img/weather/3日8時-4日8時降水量.jpg","href":"http://www.nmc.cn/publish/precipitation/1-7day-precipitation.html","title":"3月3日8時-3月4日8時全國降水量預報"},
{"src":"img/weather/4日8時-5日8時降水量.jpg","href":"http://www.nmc.cn/publish/precipitation/1-7day-precipitation.html","title":"3月4日8時-3月5日8時全國降水量預報"}
]
function?turnPic(){
if(num?==?list.length-1){
num?=?0;
Pic.setAttribute("src",list[0].src);
????????Pic.setAttribute("title",list[0].title);
????????text.innerHTML?=?list[0].title;
}?
else{
num+=1;
}
Pic.setAttribute("src",list[num].src);
Pic.setAttribute("title",list[num].title);
text.innerHTML?=?list[num].title;
Pic.timer?=?setTimeout(arguments.callee,5000);
index?=?{};
index.num?=?num;
}
turnPic();
}
function?next(){
var?Pic?=?document.getElementById("pic");
var?src?=?Pic.getAttribute("src");
var?text?=?document.getElementById("description");
var?list?=?[
{"src":"img/weather/2日8時-3日8時降水量.jpg","href":"http://www.nmc.cn/publish/precipitation/1-7day-precipitation.html","title":"3月2日8時-3日8時全國降水量預報"},
{"src":"img/weather/2日8時-3日8時最低氣溫.jpg","href":"http://www.nmc.cn/publish/temperature/low.html","title":"3月2日8時-3日8時全國最低氣溫預報"},
{"src":"img/weather/3日8時-4日8時最高氣溫.jpg","href":"http://www.nmc.cn/publish/temperature/hight.html","title":"3月3日8時-3月4日8時全國最高氣溫預報"},
{"src":"img/weather/2日8時-3日8時短時強降水.png","href":"http://www.nmc.cn/publish/bulletin/index.html","title":"3月2日8時-3月3日8時全國短時強降水預報"},
{"src":"img/weather/3日8時-4日8時降水量.jpg","href":"http://www.nmc.cn/publish/precipitation/1-7day-precipitation.html","title":"3月3日8時-3月4日8時全國降水量預報"},
{"src":"img/weather/4日8時-5日8時降水量.jpg","href":"http://www.nmc.cn/publish/precipitation/1-7day-precipitation.html","title":"3月4日8時-3月5日8時全國降水量預報"}
]
var?num?=index.num;
Pic.setAttribute("src",list[num+1].src);
Pic.setAttribute("title",list[num+1].title);
text.innerHTML?=?list[num+1].title;
if(num?==?5){
??Pic.setAttribute("src",list[0].src);
??Pic.setAttribute("title",list[0].title);
??text.innerHTML?=?list[0].title;
??}
}
</script>
</body>
</html>
為什么綁定事件沒有反應呢，檢查好久了。真心求幫助
慕數據4485210
2016-03-03 20:30:36
