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大家晚上好，在一个带有巨大大脑放屁的泡菜中，可以在一些事情上需要一点帮助。所以我编写了这个 C# 控制台应用程序，它使用 Selenium 打开网页、登录、执行一些操作，然后提交表单并注销站点。现在我在一个 for 循环中做了 100 次。现在它很少会打嗝并引发异常，原因是页面加载速度不够快或其他原因。我认为使用 try/catch 可能很好，但是一旦 catch 捕获异常，但我希望它重做它所在的循环号并继续。例如，假设我在第 66 次迭代（共 100 次）并且它引发异常，导致页面加载速度不够快或该链接的页面上出现错误，我需要它来捕获它，记录它，然后重新启动又是66号。 

using System;
using System.Collections.Generic;
using System.Text;
using OpenQA.Selenium;
using OpenQA.Selenium.Firefox;
using OpenQA.Selenium.Support.UI;
using System.Threading;
using System.IO;

namespace SeleniumTest
{
class Program
{
    static void Main(string[] args)
    {
            for (Int64 i = 1; i < 100; i++)
            {
                DateTime time;
                time = DateTime.Now;
                StreamWriter tw = new StreamWriter(@"C:\folder\file.txt", true);
                IWebDriver driver = new FirefoxDriver();
                tw.WriteLine("Staring test," + time);
                driver.Navigate().GoToUrl("http://site.com");
                driver.FindElement(By.Name("username")).Clear();
                driver.FindElement(By.Name("username")).SendKeys("username");
                driver.FindElement(By.Name("password")).Clear();
                driver.FindElement(By.Name("password")).SendKeys("password");
                driver.FindElement(By.CssSelector("input.ui-standard-button")).Click();
                driver.FindElement(By.LinkText("page")).Click();
                driver.FindElement(By.LinkText("page")).Click();
                Thread.Sleep(5000);
                //Do awesome stuff
                DateTime time1;
                time1 = DateTime.Now;
                driver.FindElement(By.CssSelector("div.Parameters")).Click();
                driver.FindElement(By.Name("submit")).Click();
                driver.FindElement(By.LinkText("Logoff")).Click();
                driver.Quit();
                tw.WriteLine("Stopping Test Successfully," + time1);
                tw.Flush();
                tw.Close();
                Thread.Sleep(10000);
            }
        }
    }
}


using System;
using System.Collections.Generic;
using System.Text;
using OpenQA.Selenium;
using OpenQA.Selenium.Firefox;
using OpenQA.Selenium.Support.UI;
using System.Threading;
using System.IO;

namespace SeleniumTest
{
class Program
{
    static void Main(string[] args)
    {
         try
           {
            for (Int64 i = 1; i < 100; i++)
            {
                DateTime time;
                time = DateTime.Now;
                StreamWriter tw = new StreamWriter(@"C:\folder\file.txt", true);
                IWebDriver driver = new FirefoxDriver();
                tw.WriteLine("Staring test," + time);
                driver.Navigate().GoToUrl("http://site.com");
                driver.FindElement(By.Name("username")).Clear();
                driver.FindElement(By.Name("username")).SendKeys("username");
                driver.FindElement(By.Name("password")).Clear();
                driver.FindElement(By.Name("password")).SendKeys("password");
                driver.FindElement(By.CssSelector("input.ui-standard-button")).Click();
                driver.FindElement(By.LinkText("page")).Click();
                driver.FindElement(By.LinkText("page")).Click();
                Thread.Sleep(5000);
                //Do awesome stuff
                DateTime time1;
                time1 = DateTime.Now;
                driver.FindElement(By.CssSelector("div.Parameters")).Click();
                driver.FindElement(By.Name("submit")).Click();
                driver.FindElement(By.LinkText("Logoff")).Click();
                driver.Quit();
                tw.WriteLine("Stopping Test Successfully," + time1);
                tw.Flush();
                tw.Close();
                Thread.Sleep(10000);
            }
        }
         catch(Exception e)
        {
            StreamWriter tw = new StreamWriter(@"C:\folder\file.txt", true);
            tw.WriteLine("Problem happened.  Restarting test.  Exception is :" + e);
            //Line of code to restart test at number 66 which I don't know
        }
    }
  }
}

我不知道在哪里//在第 66 号重新开始测试的代码行是我的知识结束的地方，希望是其他人所在的地方。您可以提供的任何指导都将非常感激。

4

3 回答 3

1

遇到异常时减少计数器应该这样做。

for (Int64 i = 1; i < 100; i++) {
    try {
        //main code here
    } catch (Exception ex) {
        //logging here
        i--;
    }
}
于 2013-02-22T01:17:41.377 回答
1

我会尝试找出它失败的原因，但如果这不是一个选项，我会将它转换为带有 try catch 的 while 循环

    int i = 100;
    while(i > 0)
    {
      try
     {
     //Do your logic here 
       i--
     }
      catch
     {
         //Log failure
      }//Don't decrement in case of failure
    }
于 2013-02-22T01:19:10.550 回答
0 
for (Int64 i = 1; i < 100; ++i)
{
  for (;;)
  {
     try
     {
       //code here
       break;
     }
     catch (Exception exc)
     {
       //log error
     }
  }
}
于 2013-02-22T01:31:35.313 回答