Question

C# 点击图片放大 ，再点就变回原大小 也就是实现点击查看大图。图片是放在pictureBox里的

Answer 1

private void pictureBox1_MouseClick(object sender, MouseEventArgs e)
{
if (this.pictureBox1.Width == 150)
{
this.pictureBox1.SetBounds(this.pictureBox1.Location.X - 75, this.pictureBox1.Location.Y - 75, 300, 300);
}
else
{
this.pictureBox1.SetBounds(this.pictureBox1.Location.X + 75, this.pictureBox1.Location.Y +75, 150, 150);
}
}

150，300 是大小 你自己设置。 在pictureBox的 MouseClick事件添加代码。

追问

行了 thx

Answer 2

boolean a=true;
private void button2_Click(object sender, EventArgs e)
{
if (a==true)
{
pictureBox1.Width = Convert.ToInt32(pictureBox1.Width * 2);
pictureBox1.Height = Convert.ToInt32(pictureBox1.Height * 2);
a=false;
}
else{
pictureBox1.Width = Convert.ToInt32(pictureBox1.Width *0.5);
pictureBox1.Height = Convert.ToInt32(pictureBox1.Height * 0.5);
a = false
}

Answer 3

private void button2_Click(object sender, EventArgs e)
{
if (pictureBox1.Width >=50)
{
pictureBox1.Width = Convert.ToInt32(pictureBox1.Width * 0.8);
pictureBox1.Height = Convert.ToInt32(pictureBox1.Height * 0.8);
}
else
{
MessageBox.Show(this, "图像已是最小，不能再缩小了！", "提示对话框", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}

}

private void button3_Click(object sender, EventArgs e)
{
if (pictureBox1.Width < 310)
{
pictureBox1.Width = Convert.ToInt32(pictureBox1.Width * 1.2);
pictureBox1.Height = Convert.ToInt32(pictureBox1.Height * 1.2);
}
else
{
MessageBox.Show(this, "图像已是最大，不能再放大了！", "提示对话框", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}

}

追问

你的意思是两个按钮，一个变大一个变小。我是想点击一下图片放大 ，再点就变回原大小，要怎么写?

追答

boolean a=true;
private void button2_Click(object sender, EventArgs e)
{
if (a=true)
{
pictureBox1.Width = Convert.ToInt32(pictureBox1.Width * 2);
pictureBox1.Height = Convert.ToInt32(pictureBox1.Height * 2);
a=false;
}
else{
pictureBox1.Width = Convert.ToInt32(pictureBox1.Width *0.5);
pictureBox1.Height = Convert.ToInt32(pictureBox1.Height * 0.5);

}

追问

囧 我表示只会变大

追答

不清楚了= =

追问

噢~谢谢了