Linux服務器如何調用并執行window.performance.timing接口？代碼如下：url = urllink driver = webdriver.PhantomJS() driver.get(url)navigationStart =driver.execute_script("returnwindow.performance.timing.navigationStart") loadEventEnd =driver.execute_script("return window.performance.timing.loadEventEnd")backendPerformance = loadEventEnd - navigationStart printbackendPerformance / 1000部署在Linux服務器后運行，結果如下請問如何調用實現？