你可以像这样获取脚本： / p>

You can fetch scripts like this:

(function(document, tag) {
    var scriptTag = document.createElement(tag), // create a script tag
        firstScriptTag = document.getElementsByTagName(tag)[0]; // find the first script tag in the document
    scriptTag.src = 'your-script.js'; // set the source of the script to your script
    firstScriptTag.parentNode.insertBefore(scriptTag, firstScriptTag); // append the script to the DOM
}(document, 'script'));