input手写实现一个双向绑定

        let test = {}
        Object.defineProperty(test,'value',{
            get(){
                return test._value;
            },
            set(newValue){
                test._value = newValue;
                document.getElementById('example').value = newValue;
            }
        });
        document.getElementById('example').addEventListener('input',function(event){
            test.value = event.target.value
            console.log(test.value)
        })