案列
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<script>
function getMax(){
var max=arguments[0];
for(var i=1;i<arguments.length;i++){
if(arguments[i]>max){
max=arguments[i];
}
}
return max;
}
console.log(getMax(1,2,3,4,5))
console.log(getMax(1,2,3,4,5,6))
console.log(getMax(1,2,3,4,5,6,7))
</script>
</head>
<body>
</body>
</html>