CodePen Embed - abRgoRv

<div id="node"></div>
<button onclick="onClick">点击我换名字</button>


var node = document.getElementById("node");
function onClick() {
  obj.name = 'Rose'
  node.innerHTML = obj.name;
}
window.onload = function(){
 var obj = {}

Object.defineProperty(obj, 'name', {
  value: 'Jack',
  writable: false,
  enumerable: true,
  configurable: true
})
node.innerHTML = obj.name;
};

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