如何使用 Selenium C# 遍历 IWebElement 列表

Question

我尝试迭代 IWebElement 列表并打印每个 h2，但问题是它只打印第一个 h2

这是我的代码

using OpenQA.Selenium;
using OpenQA.Selenium.Chrome;
using System;
using System.Collections.Generic;

namespace ConsoleApp
{
    class Program
    {
        static void Main(string[] args)
        {
            Selenium();
        }

        private static void Selenium()
        {
            ChromeOptions options = new ChromeOptions();
            options.AddArguments("start-maximized","disable-infobars", "--no-sandbox", "--disable-dev-shm-usage",
                "--disable-gpu", "--disable-extensions", "--allow-running-insecure-content", "--ignore-certificate-errors",
                $"--user-data-dir={AppDomain.CurrentDomain.BaseDirectory}/User Data");

            using (IWebDriver driver = new ChromeDriver(options)) {

                driver.Navigate().GoToUrl("https://www.amazon.com/-/es/s?i=mobile&bbn=7072561011&rh=n%3A7072561011%2Cp_36%3A-30000%2Cp_72%3A2491149011&dc&fs=true&language=es&qid=1614961572&rnid=2491147011&ref=sr_pg_");
                IList<IWebElement> elements = driver.FindElements(By.ClassName("sg-col-inner"));

                for (int i = 1; i < elements.Count; i++)
                {
                    Console.WriteLine(elements[i].FindElement(By.XPath("//span[@class=\"a-size-base-plus a-color-base a-text-normal\"]")).Text);

                }
                Console.ReadLine();
            };
            
        }
    }
}

这是结果

Apple iPhone 8 GSM desbloqueado, 64GB - espacio gris (restaurado)
Apple iPhone 8 GSM desbloqueado, 64GB - espacio gris (restaurado)
Apple iPhone 8 GSM desbloqueado, 64GB - espacio gris (restaurado)
Apple iPhone 8 GSM desbloqueado, 64GB - espacio gris (restaurado)
Apple iPhone 8 GSM desbloqueado, 64GB - espacio gris (restaurado)
Apple iPhone 8 GSM desbloqueado, 64GB - espacio gris (restaurado)
Apple iPhone 8 GSM desbloqueado, 64GB - espacio gris (restaurado)
Apple iPhone 8 GSM desbloqueado, 64GB - espacio gris (restaurado)
Apple iPhone 8 GSM desbloqueado, 64GB - espacio gris (restaurado)
Apple iPhone 8 GSM desbloqueado, 64GB - espacio gris (restaurado)
Apple iPhone 8 GSM desbloqueado, 64GB - espacio gris (restaurado)
Apple iPhone 8 GSM desbloqueado, 64GB - espacio gris (restaurado)
Apple iPhone 8 GSM desbloqueado, 64GB - espacio gris (restaurado)
Apple iPhone 8 GSM desbloqueado, 64GB - espacio gris (restaurado)

我不知道发生了什么，因为我打印了所有元素文本并且打印正常，但是当我尝试获取所有 h2 时它只打印第一个 h2

Answer 1

要从 <h2> 标签打印产品名称，您可以使用以下：

CssSelector:

driver.Navigate().GoToUrl("https://www.amazon.com/-/es/s?i=mobile&bbn=7072561011&rh=n%3A7072561011%2Cp_36%3A-30000%2Cp_72%3A2491149011&dc&fs=true&language=es&qid=1614961572&rnid=2491147011&ref=sr_pg_");
IList<IWebElement> elements = driver.FindElements(By.CssSelector("h2>a>span"));
foreach (IWebElement element in elements)
{
    Console.WriteLine(element.Text);
}

XPath:

driver.Navigate().GoToUrl("https://www.amazon.com/-/es/s?i=mobile&bbn=7072561011&rh=n%3A7072561011%2Cp_36%3A-30000%2Cp_72%3A2491149011&dc&fs=true&language=es&qid=1614961572&rnid=2491147011&ref=sr_pg_");
IList<IWebElement> elements = driver.FindElements(By.XPath("//h2/a/span"));
foreach (IWebElement element in elements)
{
    Console.WriteLine(element.Text);
}

如何使用 Selenium C# 遍历 IWebElement 列表

How to iterate through IWebElement list using Selenium C#

c#

selenium-webdriver

xpath

css-selectors

webdriver