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发表于 2012-11-13 08:48:12
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1判断语句' @) F4 R5 o7 E- H! I) l# e
if <condition> then$ r: _+ j+ z [4 I/ _& |9 ~
<statement sequence1>;
3 `- q Z9 [' p: j- Z4 H2 Q elseif <condition> then! C8 F, [3 o% ] d. I0 T
<statement sequence2>;
" ^. q P l$ d! x1 I E else
- E( P' o/ K( e$ W <statement sequence3>;
7 {% N) s0 L& `4 M+ B end;
+ v1 R) e2 d# X! O+ T. M8 s如果分支比较多，用：2 J- u2 ~7 Z6 d" p+ B$ A
inspect <expression>- k& p+ }; Z' b/ t3 V( N
when <constant_list> then
& O$ D8 M9 [) J- G <statement sequence1>;. [+ L6 Y5 n5 o6 u/ ]; ~+ V
when <constant_list> then1 S4 R0 r3 l. E; g
<statement sequence2>;2 [/ A5 P* D- s2 c, @
...
* X7 H4 E) u+ {/ K$ x* } else
* J3 F1 f' _, W, s5 P3 R <statement sequence3>;
0 P9 d1 E/ w; \+ pend;0 l5 I7 ^# J& ]5 k* ? B
; m5 j5 [1 H, z" x( h2循环语句
- W2 B6 m+ V( }( T6 L( q) y (1) from <statement sequence1>1 v- G/ S* A( _. X3 l7 V
until <condition> loop
6 ]2 E& \- }6 C; Q2 V <statement sequence2>;
$ p: a7 p: u8 Q+ g! ^; W" z end;# m+ \* ]( w" W, q* U
(2) while <condition> loop0 w- ^* u0 Z& P- w# K* ^8 B; J
<statement sequence1>;2 f3 E, Q: `" h
end;
! f+ a. i% \. v2 X' ~, X (3) repeat
N5 K" S9 u i <statement sequence1>;6 f1 l3 S" |3 o/ j1 |
until <condition>;
2 M8 h$ z7 ?6 V5 [) i) q (4) for <condition> to <condition> loop
- t N' H2 J4 s) X/ W+ b <statement sequence1>;0 x' j( e7 q8 G7 [+ f
next;
: K0 r6 ~- V$ }) } i+ c* d/ q3中断语句
6 a' l+ _$ Q' ^4 u( e7 }7 D waituntil <condition> prio <integer expression>;: G3 ^2 B+ [1 ]8 r/ Q! c. u
2 r$ A8 U) W" L* Q+ v
: ?: X9 q3 G) Q9 a( z) @# j以上为常用的函数！
! ^% | ]' T8 k! _1 {8 q# o8 ^还有很多，如有需要我把资料发到你邮箱里 7 s3 f0 E8 e( ?* P4 L# \9 E
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