如何使用Selenium读取javascript变量？

我正在学习使用

SeleniumWebDriver

（最新版本）阅读

javascript

变量。有时有效，有时无效。下面是我在whoscored.com上的尝试，它一直显示错误

using (IWebDriver driver = new ChromeDriver())
{               
    driver.Navigate().GoToUrl("http://www.whoscored.com/Regions/81/Tournaments/3/Germany-Bundesliga");
    var wait = new WebDriverWait(driver, TimeSpan.FromSeconds(30));
    var tournament = wait.Until(ExpectedConditions.ElementExists(By.Id("tournament-fixture-wrapper")));             
    IJavaScriptExecutor js = driver as IJavaScriptExecutor;                
    var obj = (object)js.ExecuteScript("return window.allRegions;"); //always return error 'Additional information: Unable to cast object of type 'System.Int64' to type 'System.String'.    
}

---

我认为你应该改变

var obj = (object)js.ExecuteScript("return window.allRegions;");

到

打印：

非洲
阿尔巴尼亚
阿尔及利亚
…
赞比亚
津巴布韦

---

那么，您想要阅读的JavaScript是什么？你能提供吗？它在链接var allRegions=[{type:1，id:248，flg:'flg-caf'，name:'Africa'，tournaments:[{id:290，url:'/Regions/248/tournaments/290/非洲caf冠军联赛'，name:'caf冠军联赛'，{id:573，url:'/Regions/248/tournaments/573/Africa-'，name:''，…对不起，粘贴到这里太长了。好的。但是，你想在这里完成什么？谢谢你的帮助。sry，我昨晚睡着了：）@namvo没关系

List<object> list = js.ExecuteScript("return window.allRegions;") as List<object>;

var wait = new WebDriverWait(_driver, TimeSpan.FromSeconds(30));
var tournament = wait.Until(ExpectedConditions.ElementExists(By.Id("tournament-fixture-wrapper")));
IJavaScriptExecutor js = _driver as IJavaScriptExecutor;

//getting count of regions
long count = (long)js.ExecuteScript("return window.allRegions.length;");

for (int i = 0; i < count; i++)
{
    //grab the name of countries if that's what you wanted
    string name = js.ExecuteScript("return window.allRegions[" + i + "].name;") as string;

    Console.WriteLine(name);
}