把event所有属性都赋能给event2

let event = {
	name: 123,
	fun: function() {
		console.log('fun方法');
	}
}
let ev = function(obj) {
	for (let i in event) {
		obj[i] = event[i]
	}
}

let event2 = {}
ev(event2)
console.log(event2);

在这里插入图片描述