1、chrome浏览器console控台引入外部js文件如
<script src="https://cdn.jsdelivr.net/npm/sockjs-client@1/dist/sockjs.min.js"></script>
在console中输入:
var script = document.createElement('script'); script.src = "https://cdn.jsdelivr.net/npm/sockjs-client@1/dist/sockjs.min.js"; document.getElementsByTagName('head')[0].appendChild(script);
则在控制台中引入sockjs.min.js文件成功