winform下鼠标点击一次值++事件

Question

在winform下点击一下按钮，希望值能加1
如：点击按钮一下，lable1.Text="aa",再点击一下lable.Text="bb",如此反复，类似于下一页的功能。
private void button1_Click(object sender, EventArgs e)
{
   string[] str=new string[]{"aa","bb","cc"}
   lable1.Text=str[i];////代码如何写
}
求实例代码WinForm下一页

Answer 1

string[] str=new string[]{"aa","bb","cc"}
int index = 0;private void button1_Click(object sender, EventArgs e)
{
   lable1.Text=str[index];
   if(index <str.Length - 1)
      index ++;
   else
      index = 0;
}

Answer 2

string[] str = new string[] { "aa", "bb", "cc" };
        int count = 0;
        private void button1_Click(object sender, EventArgs e)
        {
            if(count >= str.Length)
            {
                count = count % str.Length;
            }
            this.label1.Text = str[count];
            count++;
        }