html

<input type="text" id="myInput">

    <h1 id="oo">我的第一个HTML页面</h1>
    <p>我的第一个段落。</p>

JavaScript

const input = document.getElementById('myInput');
const oo = document.getElementById('oo');

        oo.style.display = "block";
document.addEventListener('contextmenu', (event) => {
  if (!input.contains(event.target)) {
    event.preventDefault(); // 阻止默认菜单显示
  
    
     if (oo.style.display === "none") {
        oo.style.display = "block";
      } else {
        oo.style.display = "none";
      }
  }
});