C#¿ª·¢ÊµÀý
c#¸Ä±äϵͳÊó±ê
---------------------------------------------------------------------------------------------------
using System.Runtime.InteropServices;
[DllImport("User32.DLL")]
public static extern bool SetSystemCursor(IntPtr hcur, uint id);
public const uint OCR_NORMAL = 32512;
public const uint OCR_IBEAM = 32513;
[DllImport("User32.DLL")]
public static extern bool SystemParametersInfo(uint uiAction, uint uiParam,
IntPtr pvParam, uint fWinIni);
public const uint SPI_SETCURSORS = 87;
public const uint SPIF_SENDWININICHANGE = 2;
private void button1_Click(object sender, EventArgs e)
{
//ÉèÖÃ
SetSystemCursor(Cursors.WaitCursor.CopyHandle(), OCR_NORMAL);
SetSystemCursor(Cursors.WaitCursor.CopyHandle(), OCR_IBEAM);
//..¿ÉÒÔ¸ù¾ÝÇé¿ö¼Ó
}
private void button2_Click(object sender, EventArgs e)
{
//»Ö¸´
SystemParametersInfo(SPI_SETCURSORS, 0, IntPtr.Zero, SPIF_SENDWININICHANGE);
}
±¾ÎÄÀ´×ÔCSDN²©¿Í£¬×ªÔØÇë±êÃ÷³ö´¦£ºhttp://blog.csdn.net/zswang/archive/2007/03/20/1535309.aspx
------------------------------------------------------------------------------------------------------------
C#Êó±êÍ϶¯¿Ø¼þ¸Ä±äλÖò¢»æÖÆÐé¿ò
-------------------------------------------------------------------------------------------------------------
private Point downPoint;
private Rectangle downRectangle;
private Rectangle lastRectangle;
private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button != MouseButtons.Left) return;
downPoint = e.Location;
downRectangle =
new Rectangle(0, 0, ((Control)sender).Width, pictureBox1.Height);
downRectangle.Offset(((Control)sender).PointToScreen(new Point(0, 0)));
ControlPaint.DrawReversibleFrame(
Ïà¹ØÎĵµ£º
1.¾²Ì¬³ÉÔ±ºÍ·Ç¾²Ì¬³ÉÔ±µÄÇø±ð£¿
2.const ºÍ static readonly Çø±ð£¿
3.extern ÊÇʲôÒâ˼£¿
4.abstract ÊÇʲôÒâ˼£¿
5.internal ÐÞÊηûÆðʲô×÷Óã¿
6.sealed ÐÞÊηûÊǸÉʲôµÄ£¿
7.override ºÍ overload µÄÇø±ð£¿
8.ʲôÊÇË÷ÒýָʾÆ÷£¿
9.new ÐÞÊηûÊÇÆðʲô×÷Óã¿
10.this ¹Ø¼ü×ֵĺ¬Ò壿
11.¿ÉÒÔʹÓóéÏóº¯Ê ......
´ó¼ÒÔÚʵ¼Ê¹¤×÷ѧϰC#µÄʱºò£¬¿ÉÄÜ»áÎÊ£ºÎªÊ²Ã´ÎÒÃÇҪΪһЩÒѾ´æÔڵŦÄÜ£¨±ÈÈçWindowsÖеÄһЩ¹¦ÄÜ£¬C++ÖÐÒѾ±àдºÃµÄһЩ·½·¨£©ÒªÖØÐ±àд´úÂ룬C#ÓÐûÓз½·¨¿ÉÒÔÖ±½Ó¶¼ÓÃÕâЩԱ¾ÒѾ´æÔڵŦÄÜÄØ£¿´ð°¸Êǿ϶¨µÄ£¬´ó¼Ò¿ÉÒÔͨ¹ýC#ÖеÄDllImportÖ±½Óµ÷ÓÃÕâЩ¹¦ÄÜ¡£
DllImportËùÔÚµÄÃû×Ö¿Õ¼ä using System.Runtime.Inte ......
ÊÖ»úÒôÀÖ²¥·¢Æ÷ÀïÓÐ×ÜÎļþ×Üʱ¼äµÄͳ¼Æ£¬ÔÚ¿á¹·²¥·ÅÆ÷ÀïÕÒÁËÒ»ÏÂûÕÒµ½¡£ÄÇÎÒÏëÖªµÀÕâЩ¸èÇúµÄ×Üʱ¼ä£¬¸ÃÔõô°ì£¿
ÆäʵºÜ¼òµ¥£¬ÉÔÉÔ¶¯¶¯ÊÖ£¬¾ÍÄÜÕÒµ½´ð°¸£¡
Çë²Î¿¼Èçϲ½Ö裺
µÚÒ»²½£¬±£´æ²¥·ÅÁÐ±í£¬°ÑÀïÃæµÄ¸èÇú±£´æµ½Ò»¸öÄãϲ»¶µÄÃû×Ö¡£
µÚ¶þ²½£¬ÔÚ²¥·ÅÁбíÉÏÃæµãÓÒ¼ü£¬µ½´¦²¥·ÅÁÐ±íµ½ÄãÕҵĵ½µÄµØ·½¡£
¾²âÊÔ£¬×îР......
1 NameSapce
1 1¸önamespaceÀïÃæ¿ÉÒÔÓжà¸öÀà
2 namespaceºÍcsÎļþÊǶà¶Ô¶àµÄ¹ØÏµ¡£
3 µ÷ÓÃÁíÒ»¸önamespaceµÄÉùÃ÷£¬¿ÉÒÔʹÓÃusing <namespace> £¬È»ºóÖ±½Óµ÷ÓÃÀàÃû£¬»òÕßʹÓÃnamespace.ÀàÃûÀ´µ÷ÓÃ
4 namespaceÖ§³Ö±ðÃû(alias) using namespace = namespace.classname,Èçusing m ......