<script type="text/javascript">
function message(){
alert("不要移开，点击后进行慕课网!"); }
function dian(){
window.open("http://www.imooc.com" );
}
</script>
</head>
<body>
<form>
<input name = "button" type = "button" value = "点击我" onclick="dian()" onmouseout = "message()">
function message(){
alert("不要移开，点击后进行慕课网!"); }
function dian(){
window.open("http://www.imooc.com" );
}
</script>
</head>
<body>
<form>
<input name = "button" type = "button" value = "点击我" onclick="dian()" onmouseout = "message()">
2015-05-10
<script type="text/JavaScript">
function add3(x,y,z)
{
sum = x + y +z;
document.write(x+"、"+y+"、"+z+"和:"+sum+"<br/>");
}
add3(5,8,3);
add3(7,1,4);
</script>
function add3(x,y,z)
{
sum = x + y +z;
document.write(x+"、"+y+"、"+z+"和:"+sum+"<br/>");
}
add3(5,8,3);
add3(7,1,4);
</script>
2015-05-10
var infos=[['小A','女',21,'大一'], ['小B','男',23,'大三'],
['小C','男',24,'大四'], ['小D','女',21,'大一'],
['小E','女',22,'大四'], ['小F','男',21,'大一'],
['小G','女',22,'大二'], ['小H','女',20,'大三'],
['小I','女',20,'大一'], ['小J','男',20,'大三']];
['小C','男',24,'大四'], ['小D','女',21,'大一'],
['小E','女',22,'大四'], ['小F','男',21,'大一'],
['小G','女',22,'大二'], ['小H','女',20,'大三'],
['小I','女',20,'大一'], ['小J','男',20,'大三']];
Math对象的
属性：http://img1.sycdn.imooc.com//532fe7cf0001e7b505170269.jpg
方法：http://img1.sycdn.imooc.com//532fe841000174db05160622.jpg
属性：http://img1.sycdn.imooc.com//532fe7cf0001e7b505170269.jpg
方法：http://img1.sycdn.imooc.com//532fe841000174db05160622.jpg
2015-05-10
如果没有触发，用onbeforeunload
例：
window.onbeforeunload = onunload_message;
function onunload_message(){
return"您确定离开该网页吗？";
}
例：
window.onbeforeunload = onunload_message;
function onunload_message(){
return"您确定离开该网页吗？";
}
2015-05-10
<script type="text/javascript">
//创建数组
var arr = ['*','##',"***","&&","****","##*"];
arr[7] = "**";
//显示数组长度
document.write(arr.length+"</br>");
//将数组内容输出，完成达到的效果。
for(var i=0;i<arr.length-2;i=i+2)
{
document.write(arr[i]+"</br>");
}
</script>
//创建数组
var arr = ['*','##',"***","&&","****","##*"];
arr[7] = "**";
//显示数组长度
document.write(arr.length+"</br>");
//将数组内容输出，完成达到的效果。
for(var i=0;i<arr.length-2;i=i+2)
{
document.write(arr[i]+"</br>");
}
</script>
var ticket =true; //ticket初值为true有票
if(ticket)
{
document.write("有票，可以看电影。");
}
else{
document.write("没票，电影看不成。");
}
if(ticket)
{
document.write("有票，可以看电影。");
}
else{
document.write("没票，电影看不成。");
}
2015-05-09
