硒C＃找不到元素

driver.FindElement(By.XPath(@".//*[@id='nnnn_record|OneToMany|SubGridAssociated|Mscrm.SubGrid.ndis_record.AddNewStandard']/span")).Click();

试图\\|逃脱，但仍然找不到

driver.FindElement(By.XPath(@".//*[@id='nnnn_record\\|OneToMany\\|SubGridAssociated\\|Mscrm.SubGrid.ndis_record.AddNewStandard']/span")).Click();

'\|' is not allowed in Visual Studio