AUTOCAD快捷命令
a----弧c----圆do---圆环el---椭圆l----直线we---楔形体rectangle----矩形ml---多义线pol--正多边形po---点pl---多段线spline----样条曲线-i---插入块w----创建块h----填充region----面域so---绘制实心多边形icl---调整所选图像边框sn---设置目标捕捉功能ps—模型空间切换至图纸空间 ar--- 阵列co--- 复制s---拉伸lengthen----拉长ex---廷伸sc---比例缩放tr---剪切m----移动ro---旋转mi---镜像break----打断chamfer---导直角f---导圆角x----炸开e----删除o----偏移im---将图像文件插入到当前图形文件中idt---附贴一个图像至当前图形xa---粘贴外部文件至图形 di---测量div—等分实体len---改变实体长度lts---设置lt---- 创建或设置线型p----视图平移pe---编辑多段线和三维多边形网格pre---打印预览u----取消上一次操作ctrl+y---恢复u取消的rev---二维旋转成三维sl---切开三维实体ext---二维拉伸成三维z----视图缩放ucs---建立用户坐标系su---布尔求差uni---布尔求并rr---渲染sha---着色hi--- 消隐pu---清除无用对象

可以到有关网站去下载

学习CAD最好的就是看帮助命令，那里比任何一本书都全。命令的快捷键在CAD系统文件中acad.mnu中就有，

// $Header: $
// $NoKeywords: $
//
// AutoCAD 2002 Menu
// Feb. 5, 2001
//
// Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1994, 1996, 1997,
// 1998, 1999, 2000, 2001 by Autodesk, Inc.
//
// Permission to use, copy, modify, and distribute this software
// for any purpose and without fee is hereby granted, provided that
// the above copyright notice appears in all copies and that both
// the copyright notice and the limited warranty and restricted rights
// notice below appear in all supporting documentation.
//
// AUTODESK, INC. PROVIDES THIS PROGRAM "AS IS" AND WITH ALL FAULTS.
// AUTODESK, INC. SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF
// MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. AUTODESK, INC.
// DOES NOT WARRANT THAT THE OPERATION OF THE PROGRAM WILL BE
// UNINTERRUPTED OR ERROR FREE.
//
// Use, duplication, or disclosure by the U.S. Government is subject to
// restrictions set forth in FAR 52.227-19 (Commercial Computer
// Software - Restricted Rights) and DFAR 252.227-7013(c)(1)(ii)
// (Rights in Technical Data and Computer Software), as applicable.
//
//
// NOTE: AutoCAD looks for an ".mnl" (Menu Lisp) file whose name is
// the same as that of the menu file, and loads it if
// found. If you modify this menu and change its name, you
// should copy acad.mnl to .mnl, since the menu
// relies on AutoLISP routines found there.
//

//
// Default AutoCAD NAMESPACE declaration:
//
***MENUGROUP=ACAD

//
// Begin AutoCAD Digitizer Button Menus
//
***BUTTONS1
// Simple + button
// if a grip is hot bring up the Grips Cursor Menu (POP 500), else send a carriage return
// If the SHORTCUTMENU sysvar is not 0 the first item (for button 1) is NOT USED.
$M=$(if,$(eq,$(substr,$(getvar,cmdnames),1,5),GRIP_),$P0=ACAD.GRIPS $P0=*);
$P0=SNAP $p0=*
^C^C
^B
^O
^G
^D
^E
^T

***BUTTONS2
// Shift + button
$P0=SNAP $p0=*

***BUTTONS3
// Control + button

***BUTTONS4
// Control + shift + button

//
// Begin System Pointing Device Menus
//
***AUX1
// Simple button
// if a grip is hot bring up the Grips Cursor Menu (POP 500), else send a carriage return
// If the SHORTCUTMENU sysvar is not 0 the first item (for button 1, the "right button")
// is NOT USED.
$M=$(if,$(eq,$(substr,$(getvar,cmdnames),1,5),GRIP_),$P0=ACAD.GRIPS $P0=*);
$P0=SNAP $p0=*
^C^C
^B
^O
^G
^D
^E
^T


***AUX2
// Shift + button
$P0=SNAP $p0=*
$P0=SNAP $p0=*

***AUX3
// Control + button
$P0=SNAP $p0=*

***AUX4
// Control + shift + button
$P0=SNAP $p0=*

//
// Begin AutoCAD Pull-down Menus
//
***POP0
**SNAP
// Shift-right-click if using the default AUX2 and/or BUTTONS2
// menus.
[对象捕捉光标菜单(&O)]
ID_Tracking [临时追踪点(&K)]_tt
ID_From [自(&F)]_from
ID_MnPointFi [->点过滤器(&T)]
ID_PointFilx [.X].X
ID_PointFily [.Y].Y
ID_PointFilz [.Z].Z
[--]
ID_PointFixy [.XY].XY
ID_PointFixz [.XZ].XZ
ID_PointFiyz [图形实用程序(&U)]
ID_Audit [核查(&A)]^C^C_audit
ID_Recover [修复(&R)...]^C^C_recover
[--]
ID_BupdateA [更新块图标(&U)]^C^C_blockicon
[--]
ID_Purge [缩放(&Z)]
ID_ZoomRealt [实时(&R)]_zoom ;
[--]
ID_ZoomPrevi [上一个(&P)]_zoom _p
ID_ZoomWindo [窗口(&W)]_zoom _w
ID_ZoomDynam [动态(&D)]_zoom _d
ID_ZoomScale [比例(&S)]_zoom _s
ID_ZoomCente [中心点(&C)]_zoom _c
[--]
ID_ZoomIn

不好意思，记错了。是acad.pgp文件。

; $Header: $

; $NoKeywords: $

; AutoCAD Program Parameters File For AutoCAD 2000
; External Command and Command Alias Definitions

; Copyright (C) 1997-2000 by Autodesk, Inc.

; Each time you open a new or existing drawing, AutoCAD searches
; the support path and reads the first acad.pgp file that it finds.

; -- External Commands --
; While AutoCAD is running, you can invoke other programs or utilities
; such Windows system commands, utilities, and applications.
; You define external commands by specifying a command name to be used
; from the AutoCAD command prompt and an executable command string
; that is passed to the operating system.

; -- Command Aliases --
; You can abbreviate frequently used AutoCAD commands by defining
; aliases for them in the command alias section of acad.pgp.
; You can create a command alias for any AutoCAD command,
; device driver command, or external command.

; Recommendation: back up this file before editing it.

; External command format:
; ,[],,

,

; The bits of the bit flag have the following meanings:
; Bit 1: if set, dont wait for the application to finish
; Bit 2: if set, run the application minimized
; Bit 4: if set, run the application "hidden"
; Bit 8: if set, put the argument string in quotes
;
; Fill the "bit flag" field with the sum of the desired bits.
; Bits 2 and 4 are mutually exclusive; if both are specified, only
; the 2 bit is used. The most useful values are likely to be 0
; (start the application and wait for it to finish), 1 (start the
; application and dont wait), 3 (minimize and dont wait), and 5
; (hide and dont wait). Values of 2 and 4 should normally be avoided,
; as they make AutoCAD unavailable until the application has completed.
;
; Bit 8 allows commands like DEL to work properly with filenames that
; have spaces such as "long filename.dwg". Note that this will interfere
; with passing space delimited lists of file names to these same commands.
; If you prefer multiplefile support to using long file names, turn off
; the "8" bit in those commands.

; Examples of external commands for command windows

CATALOG, DIR /W, 8,指定文件: ,
DEL, DEL, 8,要删除的文件: ,
DIR, DIR, 8,指定文件: ,
EDIT, START EDIT, 9,要编辑的文件: ,
SH, , 1,*操作系统命令: ,
SHELL, , 1,*操作系统命令: ,
START, START, 1,*要启动的应用程序: ,
TYPE, TYPE, 8,要列出的文件: ,

; Examples of external commands for Windows
; See also the (STARTAPP) AutoLISP function for an alternative method.

EXPLORER, START EXPLORER, 1,,
NOTEPAD, START NOTEPAD, 1,*要列出的文件: ,
PBRUSH, START PBRUSH, 1,,


; Command alias format:
; ,*

; The following are guidelines for creating new command aliases.
; 1. An alias should reduce a command by at least two characters.
; Commands with a control key equivalent, status bar button,
; or function key do not require a command alias.
; Examples: Control N, O, P, and S for New, Open, Print, Save.
; 2. Try the first character of the command, then try the first two,
; then the first three.
; 3. Once an alias is defined, add suffixes for related aliases:
; Examples: R for Redraw, RA for Redrawall, L for Line, LT for
; Linetype.
; 4. Use a hyphen to differentiate between command line and dialog
; box commands.
; Example: B for Block, -B for -Block.
;
; Exceptions to the rules include AA for Area, T for Mtext, X for Explode.

; -- Sample aliases for AutoCAD commands --
; These examples include most frequ

自己可以改变快捷键的设置。很容易，还有很多自己可以改的和另加的命令。也可以加批处理命令。cad是开放平台。

看帮助文件.

楼上那位讲的不错