在C＃中的if else if和else语句之间循环 [英] Looping in between the if else if and else statement in C#

问题描述

大家好，



我正在尝试自动化网站

我的方案是

Hi All,

I am trying to do automation a website
My scenario is

private void webBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
 if(webBrowser1.Url = newSystem.Uri"https://xyz.aspx",System.UriKind.Absolute)
  {
  //do something
  }
  else if webBrowser1.Url=newSystem.Uri"https://xyz.aspx",System.UriKind.Absolute)
  {
   //do something
  }
  else 
  {
    //do something
  }

现在我想要下面

Now I want like below

if(webBrowser1.Url = newSystem.Uri"https://xyz.aspx",System.UriKind.Absolute)
  {
  //do something
  }

 for(int i=0; i<= 3; I++)
 {
   else if webBrowser1.Url=newSystem.Uri"https://xyz.aspx",System.UriKind.Absolute)
  {
   //do something
  }
  else 
  {
    //do something
  }
 }
}

我该怎么做才能帮助



感谢All



我尝试过：



在if else if和else语句之间循环在C＃

How can I make this please help

Thanks to All

What I have tried:

Looping in between the if else if and else statement in C#

推荐答案

if(webBrowser1.Url = newSystem.Uri"https://xyz.aspx",System.UriKind.Absolute)
{
  //do something (the original do something)
   for(int i=0; i<= 3; I++)
   {
       //do something
   }
}
else
{ 
   for(int i=0; i<= 3; I++)
   {
      //do something
   }
}

您不能将 else 应用于任何类型的循环构造 - for ， foreach ， do ，或 while - 因为它们不是条件语句，尽管它包含条件表达式。在循环的情况下，只有用户可以控制循环执行的次数：0或更多。没有任何东西可以让你循环然后做一些事情，如果你根本没有循环或者你认为为...其他循环应该do。

你可以把一个if放在循环中：

You can't apply an else to any kind of loop construct - for, foreach, do, or while - because they aren't conditional statements, although that contain a conditional expression. In the case of a loop, that is only ever user to control how many times the loop will execute: 0 or more. There isn't anything which lets you "loop and then do something if you didn't loop at all" or whatever it is you think a for...else loop should do.
You can put an if inside the loop:

for (int i = 0; i < 10; i++)
   {
   if (i % 2 == 0)
      Console.WriteLine("Even");
   else if (i != 9)
      Console.WriteLine("Prime");
   else 
      Console.WriteLine("Odd");
   }

并且这样可以正常工作：

And that'll work fine:

Even
Prime
Even
Prime
Even
Prime
Even
Prime
Even
Odd

但是没有什么到 else 关于一个循环！

But there is nothing to else about a loop!

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