第一隻 Rebol 程式

[ Code ]

i: 0
loop 10 [ starstr: ""
for count 0 i 1 [ starstr: join starstr "*" ]
print starstr
i: i+1 ]

[ Result ]

*
**
***
****
*****
******
*******
********
*********
**********

System.getProperty 中 os.name 、os.version、and os.arch傳回值

os.name	os.version	os.arch	說明
Linux	2.0.31	x86	IBM Java 1.3
Linux	(*)	i386	Sun Java 1.3.1, 1.4 or Blackdown Java; (*) os.version depends on Linux Kernel version
Linux	(*)	x86_64	Blackdown Java; note x86_64 might change to amd64; (*) os.version depends on Linux Kernel version
Linux	(*)	sparc	Blackdown Java; (*) os.version depends on Linux Kernel version
Linux	(*)	ppc	Blackdown Java; (*) os.version depends on Linux Kernel version
Linux	(*)	armv41	Blackdown Java; (*) os.version depends on Linux Kernel version
Linux	(*)	i686	GNU Java Compiler (GCJ); (*) os.version depends on Linux Kernel version
Linux	(*)	ppc64	IBM Java 1.3; (*) os.version depends on Linux Kernel version
Mac OS	7.5.1	PowerPC
Mac OS	8.1	PowerPC
Mac OS	9.0, 9.2.2	PowerPC	MacOS 9.0: java.version=1.1.8, mrj.version=2.2.5; MacOS 9.2.2: java.version=1.1.8 mrj.version=2.2.5
Mac OS X	10.1.3	ppc
Mac OS X	10.2.6	ppc	Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1_01-39) Java HotSpot(TM) Client VM (build 1.4.1_01-14, mixed mode)
Mac OS X	10.2.8	ppc	using 1.3 JVM: java.vm.version=1.3.1_03-74, mrj.version=3.3.2; using 1.4 JVM: java.vm.version=1.4.1_01-24, mrj.version=69.1
Mac OS X	10.3.1, 10.3.2, 10.3.3, 10.3.4	ppc	JDK 1.4.x
Mac OS X	10.3.8	ppc	Mac OS X 10.3.8 Server; using 1.3 JVM: java.vm.version=1.3.1_03-76, mrj.version=3.3.3; using 1.4 JVM: java.vm.version=1.4.2-38; mrj.version=141.3
Windows 95	4.0	x86
Windows 98	4.10	x86	Note, that if you run Sun JDK 1.2.1 or 1.2.2 Windows 98 identifies itself as Windows 95.
Windows Me	4.90	x86
Windows NT	4.0	x86
Windows 2000	5.0	x86
Windows XP	5.1	x86	Note, that if you run older Java runtimes Windows XP identifies itself as Windows 2000.
Windows 2003	5.2	x86	java.vm.version=1.4.2_06-b03; Note, that Windows Server 2003 identifies itself only as Windows 2003.
Windows CE	3.0 build 11171	arm	Compaq iPAQ 3950 (PocketPC 2002)
OS/2	20.40	x86
Solaris	2.x	sparc
SunOS	5.7	sparc	Sun Ultra 5 running Solaris 2.7
SunOS	5.8	sparc	Sun Ultra 2 running Solaris 8
SunOS	5.9	sparc	Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0_01-b03) Java HotSpot(TM) Client VM (build 1.4.0_01-b03, mixed mode)
MPE/iX	C.55.00	PA-RISC
HP-UX	B.10.20	PA-RISC	JDK 1.1.x
HP-UX	B.11.00	PA-RISC	JDK 1.1.x
HP-UX	B.11.11	PA-RISC	JDK 1.1.x
HP-UX	B.11.11	PA_RISC	JDK 1.2.x/1.3.x; note Java 2 returns PA_RISC and Java 1 returns PA-RISC
HP-UX	B.11.00	PA_RISC	JDK 1.2.x/1.3.x
HP-UX	B.11.23	IA64N	JDK 1.4.x
HP-UX	B.11.11	PA_RISC2.0	JDK 1.3.x or JDK 1.4.x, when run on a PA-RISC 2.0 system
HP-UX	B.11.11	PA_RISC	JDK 1.2.x, even when run on a PA-RISC 2.0 system
HP-UX	B.11.11	PA-RISC	JDK 1.1.x, even when run on a PA-RISC 2.0 system
AIX	5.2	ppc64	sun.arch.data.model=64
AIX	4.3	Power
AIX	4.1	POWER_RS
OS/390	390	02.10.00	J2RE 1.3.1 IBM OS/390 Persistent Reusable VM
FreeBSD	2.2.2-RELEASE	x86
Irix	6.3	mips
Digital Unix	4.0	alpha
NetWare 4.11	4.11	x86
OSF1	V5.1	alpha	Java 1.3.1 on Compaq (now HP) Tru64 Unix V5.1
OpenVMS	V7.2-1	alpha	Java 1.3.1_1 on OpenVMS 7.2

System.getProperty用法

System.getProperty()参数大全

java.version Java Runtime Environment version
java.vendor Java Runtime Environment vendor
java.vendor.url Java vendor URL
java.home Java installation directory
java.vm.specification.version Java Virtual Machine specification version
java.vm.specification.vendor Java Virtual Machine specification vendor
java.vm.specification.name Java Virtual Machine specification name
java.vm.version Java Virtual Machine implementation version
java.vm.vendor Java Virtual Machine implementation vendor
java.vm.name Java Virtual Machine implementation name
java.specification.version Java Runtime Environment specification version
java.specification.vendor Java Runtime Environment specification vendor
java.specification.name Java Runtime Environment specification name
java.class.version Java class format version number
java.class.path Java class path
java.library.path List of paths to search when loading libraries
java.io.tmpdir Default temp file path
java.compiler Name of JIT compiler to use
java.ext.dirs Path of extension directory or directories
os.name Operating system name
os.arch Operating system architecture
os.version Operating system version
file.separator File separator ("/" on UNIX)
path.separator Path separator (":" on UNIX)
line.separator Line separator ("\n" on UNIX)
user.name User's account name
user.home User's home directory
user.dir User's current working directory