console 命令行工具 X clear

console

let obj = {};
Object.defineProperty(obj,'name',{
  value:'xx',
  get:function(val){
    console.log(val,'get')
  },
  set:function(val){
    console.log(val);
    document.querySelector('#inp2').value = val
  }
  
})
console.log(obj.name)

document.querySelector('#inp').addEventListener('blur',function(e){
  obj.name = e.target.value
})

<div>
  <input type="text" id="inp"/>
</div>
<div>
  <input type="text" id="inp2" />
</div>