console.log('This runs at document start, before any document content is parsed.'); // 保存原始的console.log函数的引用 const originalConsoleLog = console.log; // 重写console.log console.log = function (message) { // 调用原始的console.log函数 originalConsoleLog("trying to open " + message + " window."); }; window.open = function (url) { console.log("trying to open " + url + " window."); }