用Greasemonkey替换页面的jQuery版本

// ==UserScript==
// @name         Replace jQuery Version
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  Replace jQuery version on the page
// @author       Your Name
// @match        http://example.com/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    // Check if jQuery is already loaded
    if (typeof jQuery === 'undefined') {
        // Load the new jQuery version
        var newjQuery = document.createElement('script');
        newjQuery.src = 'https://code.jquery.com/jquery-3.6.0.min.js';
        newjQuery.integrity = 'sha384-KyZXEAg3QhqLMpG8r+Knujsl5/6en8XCp+HHAAK5GSLf2xlYtvJ8U2Q4U+9cuEnJoa3';
        newjQuery.crossOrigin = 'anonymous';
        document.head.appendChild(newjQuery);

        // Wait for the new jQuery version to load
        newjQuery.onload = function() {
            // Replace the old jQuery version with the new one
            unsafeWindow.$ = $;
            unsafeWindow.jQuery = jQuery;
        };
    } else {
        // jQuery is already loaded, replace it with the new version
        var newjQuery = document.createElement('script');
        newjQuery.src = 'https://code.jquery.com/jquery-3.6.0.min.js';
        newjQuery.integrity = 'sha384-KyZXEAg3QhqLMpG8r+Knujsl5/6en8XCp+HHAAK5GSLf2xlYtvJ8U2Q4U+9cuEnJoa3';
        newjQuery.crossOrigin = 'anonymous';
        document.head.appendChild(newjQuery);

        // Wait for the new jQuery version to load
        newjQuery.onload = function() {
            // Replace the old jQuery version with the new one
            unsafeWindow.$ = $;
            unsafeWindow.jQuery = jQuery;
        };
    }
})();