C#菜B问一个
弱弱的问一句，刚才看到一段C#代码
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Text;
using System.Windows.Forms;

namespace Example2_2_1
{
  public partial class Form1 : Form
  {
  public Form1()
  {
  InitializeComponent();
  }

  protected override void OnPaint(PaintEventArgs e) 
  {
  Graphics G = e.Graphics;

  Pen P1 = new Pen(Color.Blue, 10);
   

  G.DrawLine(P1, 20, 20, 330, 20);

  Pen P2 = new Pen(Color.Blue, 10);
  float[] Pts = { 3, 1, 2, 5 };
  P2.DashStyle = System.Drawing.Drawing2D.DashStyle.Dash;
  P2.DashPattern = Pts;
  P2.DashCap = System.Drawing.Drawing2D.DashCap.Triangle;
  P2.StartCap = System.Drawing.Drawing2D.LineCap.Round;
  P2.EndCap = System.Drawing.Drawing2D.LineCap.ArrowAnchor;

  G.DrawLine(P2, 20, 50, 330, 50);

  ////pentype
  //G.Clear(Color.Khaki);
  Pen P3 = new Pen(Color.Blue, 10);
  Single[] lines = { 0.0f, 0.1f, 0.9f, 1.0f };
  P3 = new Pen(Color.Blue, 20);
  P3.CompoundArray = lines;
  G.DrawLine(P3, 20, 80, 330, 80);

  ////pens class
  P3.Dispose();
  ////G.Clear(Color.Khaki);
  P3 = new Pen(Color.Blue, 10);
  P3.DashStyle = DashStyle.Dot;
  G.DrawLine(P3, 20, 110, 330, 110);

  P3.Dispose();
  P3 = new Pen(Color.Blue, 10);
  P3.DashStyle = DashStyle.DashDotDot;
  P3.StartCap = LineCap.ArrowAnchor;
  P3.EndCap = LineCap.ArrowAnchor;
  G.DrawLine(P3, 20, 140, 330, 140);

  P3.Dispose();
  P3 = new Pen(Color.Blue, 10);
  P3.DashStyle = DashStyle.Solid;
  P3.EndCap = LineCap.ArrowAnchor;
  G.DrawLine(P3, 20, 170, 330, 170);

  //Draw Curver
  P3.Dispose();
  P3 = new Pen(Color.Blue, 3);
  Point[] point = new Point[]
  {
  new Point(10,220),
  new Point(200,200),
  new Point(330,230),
  new Point(110,250),
  };
  G.DrawCurve(P3, point);



  if (P1 != null)
  P1.Dispose();
  if (P2 != null)
  P2.Dispose();
  if (P3 != null)
  P3.Dispose();
  }

  private void Form1_Load(object sender, EventArgs e)
  {

  }

  }
   
}


我不明白float[] Pts = { 3, 1, 2, 5 };是什么意思，数组？但数组不是要Pts[]的吗？为什么是float[]？真心不懂，求大神详解！！！！！！！！！！！！！！！

------解决方案--------------------
数组，就是float[],再看看书吧，二维数组float[,]
------解决方案--------------------
c#确实是这样声明数组。
------解决方案--------------------
看一下C#的语法
------解决方案--------------------
C# 初始值设定项的数目必须与数组大小完全匹配，可以使用此功能在同一行中声明并初始化 C# 数组：
int[] arr= {1, 2, 3, 4, 5};
此语法创建一个数组，其大小等于初始值设定项的数目。
------解决方案--------------------
建立一个数组，并赋值
------解决方案--------------------