我有一部分代码:鼠标悬停一个元素,然后点击已出现的子元素:
`IWebElement menulink = driver.FindElement(By.CssSelector(""));
Actions builder = new Actions(driver);
builder.MoveToElement(menulink).Build().Perform();
IWebElement sublink = Driver.FindElement(By.CssSelector(""));
builder.MoveToElement(sublink).Click(sublink).Build().Perform();`
Nunit显示测试已成功运行,但Chrome浏览器未执行任何操作。这是什么错误?