单击按钮后如何在for循环中打印序列号

本文介绍了单击按钮后如何在for循环中打印序列号的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 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 ++） { // 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

你不需要循环，只需将变量移到方法之外：

private 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++); }