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发表于 2012-11-13 08:48:12
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1判断语句/ P9 p7 E* ?4 F F% H/ i
if <condition> then# i& j, o# ]# N
<statement sequence1>;
# `9 F9 c# [0 I- Z! X elseif <condition> then
0 |+ F6 s; E' f# G7 M <statement sequence2>;
9 t! V- d9 D4 z( ^8 }6 B% A/ Q else
3 v U* g7 {5 `/ c! B+ r) s; R4 K; L <statement sequence3>;
5 ?( _7 B2 v A: z# F, @& H end;9 F6 r' `7 d, G9 G1 h, y$ B7 m: M
如果分支比较多，用：) ` C# K; W) g9 Z- X
inspect <expression>) P3 I7 l. ?1 e4 m: S. d4 J% |
when <constant_list> then' k0 p! ^! `4 b& V
<statement sequence1>;+ B( l8 J" m g& K8 q. B9 a
when <constant_list> then
+ X2 a! T3 E' n; c6 V <statement sequence2>;9 _; W$ g Y. C6 b f5 E
...- J9 n2 i" r! V# M
else
- U; i$ C" z5 g# n <statement sequence3>;' F; u. _) w4 ]. u% V
end;8 d/ }7 a* y2 t* @# O3 G' ^
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2循环语句
5 n( |, b, }# D* t% W6 ] (1) from <statement sequence1>
# x1 i8 }2 Z7 Y2 o* }' X8 [$ L8 q) I until <condition> loop
, `. }$ v0 M% M7 _/ w1 L <statement sequence2>;* Y1 h: J7 w3 O4 F0 P5 y: z
end;
+ v _5 K) ?( o& }# H% e2 y: x (2) while <condition> loop+ ~! a1 Z/ h2 r. b; r, m3 d' C) ]
<statement sequence1>;
1 P, O2 o" P( l% ? end;
9 E: h# v5 v. o) O& O& R (3) repeat 0 ~/ D3 j# I% B( i, L r, n3 c, B
<statement sequence1>;
! X" K' d3 e, j. p1 V8 ^9 k until <condition>;6 t$ b/ G' m% B
(4) for <condition> to <condition> loop' n% i0 Y' a) ~( \0 M
<statement sequence1>;
' Q: t1 q1 q0 Y# f; Z# }# M6 D4 _$ ` next;
2 Z. ]+ @+ L# N/ T9 N3中断语句
! M) G7 u9 M0 J+ Q2 } waituntil <condition> prio <integer expression>;
/ w: M3 v" f0 y6 Y2 L* y/ ]. W# n1 ^# A! O9 i: W; ~, Q
. {. h& X! F7 f; q. E以上为常用的函数！& H! E! u l+ K9 k: m8 u
还有很多，如有需要我把资料发到你邮箱里 + S) ~+ e3 a- F9 W5 |7 b# E. t3 ^* g% i
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