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发表于 2012-11-13 08:48:12
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1判断语句& m: u6 S5 R. i1 u- \
if <condition> then
4 P5 ]- P0 J/ {4 V4 h <statement sequence1>;* Y5 J' K# h b7 J' x9 b0 [
elseif <condition> then
' g0 {7 _1 S7 z) P <statement sequence2>;" L% G# A+ t, i6 }. D5 }
else ( b |7 U) L0 q0 L0 o+ V
<statement sequence3>;! |; H ?. t; q
end;
* v+ g9 D+ a! m9 G: W9 v如果分支比较多，用：4 d7 y, }) ]8 \
inspect <expression>
! r" ?2 d, j% ^6 p- A when <constant_list> then
3 w- W6 ?' ~4 b5 J* z+ ~' _ <statement sequence1>;
- ?* y7 x5 o% S. |" Q! |# \ when <constant_list> then
# r7 \; n- J# e <statement sequence2>;
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else( f! \! H) B* ^1 K; t4 R
<statement sequence3>;+ P* \* M1 B3 p$ M+ F7 r6 d) N
end;9 d& d: M, R. ?* D1 [
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2循环语句
8 Z9 Q/ @# [# H" B, J8 [, i (1) from <statement sequence1>
1 e! Z' s& z9 o j: a5 Q until <condition> loop
) _5 [2 i n* p <statement sequence2>;/ q% L' D/ S, [) F) p& z
end;
& \ ^9 L# G M' c/ G (2) while <condition> loop3 \* S0 h% }( y
<statement sequence1>;
9 B+ g) Q0 h9 _! ` end;
' o6 i' H5 t# b; i B! O (3) repeat
+ f: O, B1 l) A1 k' B. ^$ B <statement sequence1>;
* D( u- {8 K5 ]/ A% |3 X( w until <condition>;3 P" t1 V* M$ @
(4) for <condition> to <condition> loop, E, y2 K2 F9 n B7 |2 e
<statement sequence1>;1 }; X# B5 o! t! ?0 U
next;
! k$ i n9 k/ M) M3中断语句
6 T) @- ]& r8 u. Q& \/ |! t waituntil <condition> prio <integer expression>;: c: `2 w/ t1 N1 q$ D! P
0 W, D1 g h% C) M( [- W2 O( Q1 S
3 X. c. d% j2 } \* H2 w2 [以上为常用的函数！) m; m0 x( i5 \) T; |$ f
还有很多，如有需要我把资料发到你邮箱里 $ M9 Q8 T q' e' n
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7 c. P/ d- n1 x7 M) |$ X2 M2 l$ ]1 }
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