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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
, f" }5 F! s/ T( x if <condition> then
# V" [4 E6 I5 ]! z2 |- M5 V <statement sequence1>;$ b0 Z# b3 [* G, |
elseif <condition> then
1 Q/ [- x% q! g <statement sequence2>;9 o2 ?1 T& R1 X0 r7 k$ X2 A
else
! x0 L. M+ e5 w" |+ M <statement sequence3>;5 h# ~' e9 g: B& \
end;, K$ u# k( \9 F
如果分支比较多，用：& p' z5 H' c: p- O5 B: U
inspect <expression>/ j1 L6 R' d3 s* {& Q
when <constant_list> then6 R. E! x( s7 K! b! ~
<statement sequence1>;- {. {( c: s7 T0 [* H7 x: ?
when <constant_list> then! @5 y v' [& v
<statement sequence2>;0 ?2 w2 _: O: U6 e0 `; Q4 T
...
0 u& ]; W+ M7 S) C6 J1 G else
0 T* _5 a% A& M9 Y# g' D* B. {" n <statement sequence3>;
/ x% m4 N" H; ]7 a P( F- n/ Hend;
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2循环语句
5 d8 e" E+ B, z7 f% I0 q7 k1 O (1) from <statement sequence1>
- p0 g9 C4 g, | until <condition> loop3 k" }) ~$ {5 e' [- X
<statement sequence2>;
! Z9 r! r% W z end;3 ?" {8 d" B0 n0 @+ E/ c2 F
(2) while <condition> loop
l' n3 R# A$ j+ I3 w+ a+ S <statement sequence1>;
9 R$ s( g+ O1 | end;! G$ a6 M ~0 V7 C9 N
(3) repeat 0 `+ j/ ]- C/ J1 s
<statement sequence1>;
( m) ?. x, D) b- b. y, i8 Q3 O until <condition>;
3 l8 U7 s1 |* c+ B (4) for <condition> to <condition> loop
6 o2 y9 v# t3 F6 A <statement sequence1>;+ p9 Y, r: }& n$ [+ |
next;0 N! U! L* _( Y5 o" K b
3中断语句
. c9 P6 w- `$ z3 @: j; T% \7 { waituntil <condition> prio <integer expression>;
8 \2 G- `6 ^0 t+ a$ \: i$ c5 H+ ^: q' o3 n; E3 \: l8 a
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以上为常用的函数！
+ P7 X# t- M0 E; A: c9 h还有很多，如有需要我把资料发到你邮箱里 : p8 w4 i8 I% n! Z8 I
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