C# for 语句

来源：百度知道 编辑：UC知道 时间：2024/05/16 08:17:24
protected void Button2_Click(object sender, EventArgs e)
{
for (int i = 1; i < 26; i++)
{
Label2.Text += i.ToString() + ",";

}
}
//怎么让他可以循环的时候只显示偶数!!!最好以代码的形式告诉我`我是初学者!!谢谢!

protected void Button2_Click(object sender, EventArgs e)
{
for (int i = 1; i < 26; i+=2)
{
Label2.Text += i+ ","; //不用toString() 因为后面是string
}
}

或者容易理解点的
protected void Button2_Click(object sender, EventArgs e)
{
for (int i = 1; i < 26; i++)
{
if(i%2==0) //如果除2余数是0
{
Label2.Text += i+ ",";
}

}
}

protected void Button2_Click(object sender, EventArgs e)
{
for (int i = 1; i < 26; i++)
{
if(i%2==0)
{
Label2.Text += i.ToString() + ",";
}

}
}
只要在判断一下是不是偶数就可以了

for(int i=2;i<26;i+=2)
{
Label2.Text += i.ToString() + ",";
}

for(int i=2;i<26;i+2)
{
...
}