Java 仅供参考：我发现switchTo.frame需要禁用隐式等待：driver.manage.timeouts.implicitlyWait0，TimeUnit.SECONDS； driver.switchTo().frame(driver.findEleme

仅供参考：我发现switchTo.frame需要禁用隐式等待：driver.manage.timeouts.implicitlyWait0，TimeUnit.SECONDS；

driver.switchTo().frame(driver.findElement(By.id("frameId")));
//do your stuff
driver.switchTo().defaultContent();

driver.switchTo().parentFrame();

driver.switchTo().defaultContent();

WebElement iFrame= driver.findElement(By.tagName("iframe"));

driver.switchTo().frame(iFrame);

driver.switchTo().parentFrame();    // to move back to parent frame
driver.switchTo().defaultContent(); // to move back to most parent or main frame

WebDriver driver=new FirefoxDriver();
driver.get("http://www.java-examples.com/java-string-examples");
Thread.sleep(3000);
//Switch to nested frame
driver.switchTo().frame("aswift_2").switchTo().frame("google_ads_frame3");

WebElement element =driver.findElement(By.xpath(".//*[@id='block-block19']//iframe"));
driver.switchTo().frame(element);
driver.findElement(By.xpath(".//[@id='carousel']/li/div/div[3]/a")).click();