在谷歌浏览器插件中，注入JS代码到页面里

const script = document.createElement("script");
script.textContent = `代码`
document.documentElement.appendChild(script);
script.remove(); 

    const inlineScript = `
        (function() {
          代码
        })();
      `;

      const scriptTag = document.createElement('script');
      scriptTag.textContent = inlineScript;
      document.head.appendChild(scriptTag);
      scriptTag.remove();