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发表于 2012-11-13 08:48:12
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1判断语句" U4 v+ ]. Q- w4 ^ r. u- T
if <condition> then+ R4 f) y5 t* D( b T
<statement sequence1>;6 w/ g. D9 ?# `
elseif <condition> then
1 S, U A) z8 g8 W3 U <statement sequence2>;
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<statement sequence3>;
' W8 v* h1 g+ d! |) O end;
% j, k! ^2 L* E& ?' _+ Z% j) Q- o如果分支比较多，用：
6 l0 X3 `; T8 T. ] inspect <expression>' g( X' P" \- v, T4 t% H$ b
when <constant_list> then
0 g4 U6 u3 Y; D1 h( A8 H <statement sequence1>;+ C- u- P6 J$ s5 B8 @( x
when <constant_list> then4 V+ O& P7 F( d* z& B8 q. j
<statement sequence2>;: r8 i+ \( ?8 r4 g8 t
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else1 S- ~' Y$ f" e* ~' D+ G
<statement sequence3>;# B# a( [. \4 N: x2 ]
end;0 [" k. Z% v& o6 E: g: t1 ^( q
1 L" H$ y! Y# |$ `2 e4 q2循环语句: b6 V: I# b$ y1 G2 z8 H
(1) from <statement sequence1>
9 S; c. v, ~0 Y until <condition> loop
, f! {3 r8 O7 A5 ^! R$ G1 j5 M2 D <statement sequence2>;
- ^! c* j. x% t( {' d8 |, A4 ^2 ? end;
( v5 |/ d$ ^; y- I. d (2) while <condition> loop
; y. j" o/ ~$ `- c <statement sequence1>;3 P* g' X' I1 Q9 F# o
end;; L/ y1 Z2 j% k' o3 c% H! D
(3) repeat
& e! f+ Y6 G3 V; p <statement sequence1>;
( U! I$ J9 {' V2 R# j8 B4 n until <condition>; R. i5 K; k, K# e& }9 M+ T
(4) for <condition> to <condition> loop
% h3 i* f7 K; K9 I R <statement sequence1>;
# H/ e t+ [; z- t next;4 N/ E$ ~; `. |* f$ N7 s6 n
3中断语句
- g. T5 b4 ~7 w waituntil <condition> prio <integer expression>;
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! o# t) Y$ r1 `6 n5 _以上为常用的函数！
6 B* c$ m2 M' Q. {1 ?! U2 n/ w. Z& F还有很多，如有需要我把资料发到你邮箱里
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