<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<script>
var a=new Array();
var b=new Array(1,1.1,true,null,'jack');
var c=[];
d=[1,1.1,true,null,'jack'];
console.log(d);
console.log(c.length);
console.log(d[2]);
for(var i=0; i<d.length;i++){
console.log(i+"---"+d[i]);
}
for(var i in d ){
console.log(i+"~~~"+d[i]);
}
</script>
</head>
<body>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<script>
function a (){
console.log(100);
}
function a2(a,e){
console.log(a+e)
}
function a3(p){
return p;
}
var v=a3("jack");
console.log(v+'你好');
a2(1.1,0.9);
a();
var b=function(){
console.log(200);
}
var b1=function(u,i){
console.log(u*i)
}
var b2=function(){
return 'hello js';
}
var c= b2();
console.log(c)
b1(1.2,11.8);
b();
</script>
</head>
<body>
</body>
</html>
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