单击按钮后如何在for循环中打印序列号 [英] How do I print serial numbers in for loop after button click

问题描述

嗨。

我有一个按钮，在Messagebox中显示i的值。我希望第一次显示值为1，然后退出循环，

然后再次点击按钮它应显示为2

并退出循环

然后再次点击按钮它应该显示为3

并退出循环

然后再次点击按钮它应显示为4

并退出循环

 私人  void  Button_Click（ object  sender，RoutedEventArgs e）
 {
c =  1 ; 
  for （i =  1 ; i < ;  =  26 ; i ++）
 {
  //  < span class =code-comment> b = i;  
c = i; 
 MessageBox.Show（  i的值是 + i）; 
} 
 

如何更改此代码才能获得...

解决方案

< blockquote>你不需要循环，只需将变量移到方法之外：

  private  < span class =code-keyword> int  counter =  1 ; 
  private   void  Button_Click（ object  sender，RoutedEventArgs e）
 {
 MessageBox.Show（  counter的值是  + counter ++）; 
} 
 

hi .
i have a button which displays the value of "i" in Messagebox. i want to display the value as 1 for 1sttime, and exit the loop,
then for button click again it should display as 2
and exit the loop
then for button click again it should display as 3
and exit the loop
then for button click again it should display as 4
and exit the loop

private void Button_Click(object sender, RoutedEventArgs e)
       {
           c = 1;
           for (i = 1; i <= 26; i++)
           {
               //  b = i;
               c = i;
               MessageBox.Show(" value of i is " + i);
           }

how should i change this code to get that..

解决方案

You don't want a loop, just move the variable outside the method:

private int counter = 1;
private void Button_Click(object sender, RoutedEventArgs e)
{
    MessageBox.Show("The value of counter is " + counter++);
}

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