l001213
果然还是函数好用

int a = 0;

private void button1_Click(object sender, EventArgs e)

{

Bitmap picture1 = new Bitmap(@"d:\My Documents\My Pictures\713f7dd3jw1duqksh838ej.jpg");

Bitmap picture2 = new Bitmap(@"d:\My Documents\My Pictures\0680e_ozpR0h.jpg");

Bitmap picture3 = new Bitmap(@"d:\My Documents\My Pictures\52339a2b8a2fa47e5243c17b.jpg");

Bitmap picture4 = new Bitmap(@"d:\My Documents\My Pictures\174409eill5mldx5dllszi.jpg");

Bitmap picture5 = new Bitmap(@"d:\My Documents\My Pictures\919_1537872_fea0d9f8d17b3f7.jpg");

switch (a)

{

case 0: pictureBox1.Image = picture1; a = a + 1; break;

case 1: pictureBox1.Image = picture2; a = a + 1; break;

case 2: pictureBox1.Image = picture3; a = a + 1; break;

case 3: pictureBox1.Image = picture4; a = a + 1; break;

case 4: pictureBox1.Image = picture5; a = a + 1; break;

case 5: pictureBox1.Image = picture1; a = a + 1; if (a > 5) a = 1; break;

}

}

}

}

果然还是函数好用