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发表于 2012-11-13 08:48:12
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1判断语句
* t8 `3 t0 q' \4 t% S( @ if <condition> then
+ v# ^3 v! Y. w1 `/ q <statement sequence1>;* \, F8 M& z d/ j
elseif <condition> then
0 J' a% i7 g# H) k+ l. [ <statement sequence2>; z: w z* x4 ^. t; V1 c
else ) V0 I$ N4 a( z. o- F% F5 A
<statement sequence3>;3 L6 o1 m: T/ {9 D$ \, M& p& Y
end;5 Z# ~. z; j, I2 s d
如果分支比较多，用：5 t2 R2 s' _4 a" P' W
inspect <expression>5 S& O9 V& l j- k8 I
when <constant_list> then6 V- P7 G& o* W* ?! [, ~& ]5 _% K
<statement sequence1>;
; h2 L" C7 K0 E$ c1 @ when <constant_list> then
. d: T! K" t& G' |! \. a7 f <statement sequence2>;
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else
' q6 f* ?. c: g. A- } <statement sequence3>;6 U n. _$ u( H' l- c# e$ O* O
end;& K6 t; v) l. [& a, k% @3 V9 V
- {" C6 R: \/ m2 G |2循环语句+ K0 T4 x; e1 K g$ F7 j& ]3 X3 @
(1) from <statement sequence1>7 L/ I) P1 D: C4 P# W
until <condition> loop" v* [3 O v% W5 T# n' y) q
<statement sequence2>;
& k0 n5 \* Y% \) l, N0 d end;; d) L. ]- y5 R. h
(2) while <condition> loop* r. t- {3 k% M2 v" O
<statement sequence1>;
t* A$ _5 K _0 K0 A" i end;: O: W/ n/ N$ I! S
(3) repeat
2 _) V5 i) v r! E5 Q2 Z" ] <statement sequence1>;$ r0 Y5 C9 P# }' R/ j( B
until <condition>;$ g. }6 E) [5 V
(4) for <condition> to <condition> loop
" `0 J& U+ X' b& q/ N" } <statement sequence1>;$ p% H/ ]" U9 l. @$ x' t# l
next;/ ?' {: |. E( j5 {# I
3中断语句, f; y1 g3 D, y C) t c
waituntil <condition> prio <integer expression>;
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以上为常用的函数！5 r* v, r {- Z/ d# F9 v
还有很多，如有需要我把资料发到你邮箱里
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