//普通函数
/*function fn(){
console.log('test function');
}*/
//对象方法
/*var o = {
sayHi:function()
{
console.log('speak in english');
}
}
o.sayHi();*/
//构造函数
/*function Star(){
console.log('star');
}
new Star();*/
//绑定事件函数
/*window.onload = function(){
var btn = document.getElementById('btn');
btn.onclick = function(){
console.log(123);
}
}*/
/*btn.click = function(){
console.log('test click');
}*/
/*var btn = document.querySelector('.btn');
btn.addEventListener('click',function(){
console.log('this is correct');
})*/
//定时器函数
/*setInterval(function(){
//alert(111);
},3000);*/
//立即执行函数
(function(){
console.log('123321');
})()