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问 刚开始学习430，写了如下中断程序：
interrupt[BASICTIMER_VECTOR] void basic_timer (void)
{
second++;
IFG2=BTIFG^0X80; //clear the interrupt flag
}

在进行编译的时候，有如下错误：

Error[Pe094]: the size of an array must be greater than zero

Error[Pe077]: this declaration has no storage class or type specifier

Error[Pe065]: expected a ";"

请问高手这是什么原因，难道是我的编译器不支持中断么？
在解决error[pe077]这个错误时，只要在interrupt前面增加static关键词就可以了，但是为什么不可以省略？

请各位高手指点。 答 1: 不同版本的中断书写格式是不一样的，请参考安装目录下的例程的书写格式。 答 2: 谢谢hzyhy得指点，我参考安装目录下的例程书写格式书写之后，上述的几个错误提示消失，但又出现了如下的错误提示：
Building configuration: t3 - Debug

display.c
icc430.exe -I C:\Program Files\IAR Systems\Embedded Workbench 3.2\430\INC\ -I C:\Program Files\IAR Systems\Embedded Workbench 3.2\430\INC\CLIB\ -o D:\
porgram of 430\430\Debug\Obj\ -z2 --no_cse --no_unroll --no_inline --no_code_motion --debug -e --double=32 D:\porgram of 430\430\display.c

IAR MSP430 C Compiler V2.21B-P1/W32 [Kickstart]
Copyright 1996-2003 IAR Systems. All rights reserved.

424 bytes of CODE memory
22 bytes of CONST memory
26 bytes of DATA memory (+ 9 bytes shared)

Errors: none
Warnings: none

Linking
xlink.exe D:\porgram of 430\430\Debug\Obj\display.r43 -o D:\porgram of 430\430\Debug\Exe\t3.d43 -rt -IC:\Program Files\IAR Systems\Embedded Workbench 3.2\430\
LIB\ -f C:\Program Files\IAR Systems\Embedded Workbench 3.2\430\config\lnk430F449.xcl -e_small_write=_formatted_write -e_medium_read=_formatted_read -f C:\
Program Files\IAR Systems\Embedded Workbench 3.2\430\config\multiplier.xcl -f C:\Program Files\IAR Systems\Embedded Workbench 3.2\430\config\
compactmath.xcl

IAR Universal Linker V4.56E/386
Copyright 1987-2003 IAR Systems. All rights reserved.
Error[e46]: Undefined external "?SwitchKey16" referred in display ( D:\porgram of 430\430\Debug\Obj\display.r43 )
Error[e46]: Undefined external "?Epilogue4" referred in display ( D:\porgram of 430\430\Debug\Obj\display.r43 )
Error[e46]: Undefined external "?Epilogue3" referred in display ( D:\porgram of 430\430\Debug\Obj\display.r43 )
Error[e46]: Undefined external "?DivMod16u" referred in display ( D:\porgram of 430\430\Debug\Obj\display.r43 )
Error[e46]: Undefined external "?DivMod16s" referred in display ( D:\porgram of 430\430\Debug\Obj\display.r43 )
Error[e46]: Undefined external "?cstart_init_copy" referred in display ( D:\porgram of 430\430\Debug\Obj\display.r43 )
Error[e46]: Undefined external "?cstart_init_zero" referred in display ( D:\porgram of 430\430\Debug\Obj\display.r43 )
Error[e46]: Undefined external "?longjmp_r4" referred in display ( D:\porgram of 430\430\Debug\Obj\display.r43 )
Error[e46]: Undefined external "?longjmp_r5" referred in display ( D:\porgram of 430\430\Debug\Obj\display.r43 )
Error[e46]: Undefined external "?setjmp_r4" referred in display ( D:\porgram of 430\430\Debug\Obj\display.r43 )
Error[e46]: Undefined external "?setjmp_r5" referred in display ( D:\porgram of 430\430\Debug\Obj\display.r43 )

58 bytes of CODE memory
6 bytes of DATA memory (+ 9 absolute )
2 bytes of CONST memory

Errors: 11
Warnings: none


Total number of errors: 11
Total number of warnings: 0

上述错误提示应该都在LINKING的时候发生的情况，不明白这是为什么，敬请高手们再指点指点