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发表于 2012-11-13 08:48:12
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1判断语句) T! a% _) }# L) x/ I
if <condition> then% [: A2 F" r# }: H& ]6 _& V
<statement sequence1>;
' {" Q% b: { s& [- E9 Z1 } elseif <condition> then
8 O: ~0 T4 |/ v1 Y5 a+ _$ q <statement sequence2>;
+ Y. v2 c+ i& W; a1 K: D else
- B. |& V+ r0 g% r1 C( t+ u3 f <statement sequence3>;
( i# ^/ }0 i) }% @* p2 C end;
s* U% Q) \2 n8 H4 F: ` a+ L& K如果分支比较多，用：; w; q9 j, G X& L! h
inspect <expression>
) ~% ? }+ o- c; y" b" C) K. T8 R when <constant_list> then
( M* D0 B& u' V3 d% M$ L& k4 i, O/ g <statement sequence1>;4 @ j6 D/ D+ s# a! R' S0 Q% U
when <constant_list> then
' Q1 _$ J8 R+ Y" Y* T5 x/ j6 d <statement sequence2>;
/ ]) F# t- D- ~. t6 L: A6 ] ...& _. P. E% A; S: `) k: L" k8 ` h
else: B& A' B4 k# s! X
<statement sequence3>;6 N; C' Q2 E, [1 s
end;
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. d' v* F* N. r1 ~2循环语句! q8 o0 i j8 x
(1) from <statement sequence1>
; N+ C6 Y- D; s$ e$ ^" I until <condition> loop" @3 L: b% |) f
<statement sequence2>;
' y+ D9 o; D7 A7 A$ W% g) g5 v8 ] end;: j& _6 Q# v9 y6 U$ _
(2) while <condition> loop5 l! `5 _' e1 D( u" Q, a
<statement sequence1>;
0 o8 Y! ?5 p* v; G [! c end;
( U n% m) g6 X# B/ ?) a+ g (3) repeat 3 f5 C- z2 y l* r$ M0 B! U
<statement sequence1>;( ?+ v6 Z& ^. ]1 z, t& K
until <condition>;! M+ N- N+ I; |/ S2 W2 Z* ?8 ~% J
(4) for <condition> to <condition> loop3 e/ e; F8 j6 p, v0 ]; a9 N, [
<statement sequence1>;
% Q5 ^ B; E3 K1 u" j next;! q7 `, A0 L Y7 ^) V3 z! n. i
3中断语句
3 ~! A7 D; K. Y% e! |1 H- D: k waituntil <condition> prio <integer expression>;* c& v1 R% Q! U; V7 F9 _7 W
; q9 K/ {1 ]+ G; ]$ \0 e" Y6 S8 S
以上为常用的函数！
% G/ s4 l! s4 Q# O& I% L' n还有很多，如有需要我把资料发到你邮箱里 t3 o6 g4 J# K% M& p+ W6 G! @' o
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