面试的时候被问到，如何遍历System.drawing.Color下面的所有颜色以及名称以查看，当时答得不好，现将方案记录如下:

复制代码 代码如下:

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public partial class Form1 : Form

{

FlowLayoutPanel newPanel = new FlowLayoutPanel();

public Form1()

{

InitializeComponent();

newPanel.AutoScroll = true;

//newPanel.FlowDirection = FlowDirection.BottomUp;

//newPanel.WrapContents = false;

newPanel.Dock = DockStyle.Fill;

newPanel.BackColor = Color.White;

button1.Anchor = (AnchorStyles.Bottom | AnchorStyles.Right);

}

private void button1_Click(object sender, EventArgs e)

{

newPanel.Controls.Clear();

int i = 1;

foreach (var item in typeof(Color).GetMembers())

{

if (item.MemberType == System.Reflection.MemberTypes.Property && System.Drawing.Color.FromName(item.Name).IsKnownColor == true)//只取属性且为属性中的已知Color，剔除byte属性以及一些布尔属性等（A B G R IsKnownColor Name等）

{

Label myLable = new Label();

myLable.AutoSize = true;

myLable.BackColor = System.Drawing.Color.FromName(item.Name);

myLable.Text = System.Drawing.Color.FromName(item.Name).Name;

newPanel.Controls.Add(myLable);

//newPanel.GetFlowBreak(myLable);

i++;

}

}

this.Controls.Add(newPanel);

button1.Text = i.ToString();

}

}