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发表于 2012-11-13 08:48:12
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1判断语句2 [+ J% o% C/ |) k
if <condition> then0 V/ x3 i z g. d7 V. O- ]* ^
<statement sequence1>;
" @( R8 J5 T: S, Q1 j elseif <condition> then/ ?' h# T4 s k- W0 \# z+ `# D
<statement sequence2>;
, k2 q ^- s& `% ?4 J j else & R" }% J. r/ {/ K% V
<statement sequence3>;
7 n' Q$ Q5 `4 h4 S4 k' [ end;
! c5 p& G, p# c3 X0 u如果分支比较多，用：: [$ K5 i. l0 A2 {5 r8 u. A' a
inspect <expression>) X1 [& r2 o9 O: ?4 o
when <constant_list> then
6 ~! F7 J: l% Z# Y( a <statement sequence1>;
5 k; D& `; V: d; O when <constant_list> then
& O6 Q& r5 X% L' \/ U% J) F <statement sequence2>;8 m7 y1 g! v, [& l* F, \0 x
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else, L" h- T- A$ ?$ c! l
<statement sequence3>;# C$ ^/ F, J4 n! F7 \! d* Y
end;9 T, ]6 l0 R' M. c: m' j
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2循环语句! D6 R8 Y" j$ @" y
(1) from <statement sequence1># E2 J4 G" m! e+ {3 d F
until <condition> loop
4 l* y, f& h; T5 e* i <statement sequence2>;
- L; E1 a2 K' ?; D! B) l& l end;: \( r' G( N, E1 T6 Q6 y# S
(2) while <condition> loop
. x) j# Y$ ~! _. B <statement sequence1>;
, T8 X2 J1 N) T& ?$ w3 y. m3 F end;2 c0 \5 n6 Y) p3 Y, k; g" }) {) r+ R
(3) repeat / r. F# s' i' u/ b
<statement sequence1>;
1 s; ^( ]5 Y/ }# c0 K until <condition>;8 B" M: |5 F! h* a# W/ A9 w
(4) for <condition> to <condition> loop6 f5 r+ f$ U4 C7 Y/ N) b' F
<statement sequence1>;- B' e8 m) P# i: t; q8 p
next;
! @! o: k6 J/ m4 [" Q3中断语句: F2 O# A3 u" C9 L d) W$ C, x6 r
waituntil <condition> prio <integer expression>;! Y" _' p+ U( a: F( h- ?9 v6 G) r5 i
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以上为常用的函数！
* u9 d, y l/ e! w5 Y* y还有很多，如有需要我把资料发到你邮箱里 0 Z c3 n% w O( D6 Q# E/ n
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