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发表于 2012-11-13 08:48:12
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1判断语句. C9 J# S! p9 m% X! L
if <condition> then
: u( y; f7 I$ P: }/ M/ t1 S) v {0 n <statement sequence1>;
- S$ \% k# V( _# C elseif <condition> then) F2 U) ?, k) u+ H- O
<statement sequence2>;
: L. t" t- ]' ~+ ^; G% t else
' K* ?$ g8 U' i/ k- _ <statement sequence3>;
9 ?: m1 A8 `. i end;
6 F) ~- g3 |: O+ z& |如果分支比较多，用： I$ f# F4 u3 N$ b I
inspect <expression>& u( B. {! D9 m7 _) I0 w' n, |$ R- ?
when <constant_list> then
c0 N- ^1 c8 q* p$ _ E0 ` <statement sequence1>;' N0 j. @: q' b l4 |/ t
when <constant_list> then2 q$ Q! m/ y0 z2 h; m: X
<statement sequence2>;2 L6 ?! W& W$ x! j* J" Y, k4 b
...
2 S0 c3 C3 h$ W3 u1 q( i# \ else
b v4 i9 R, z0 y% C3 R% H6 K/ ` <statement sequence3>;' j; ?3 O2 c. M) t8 Y- e0 R" R
end;" E! J- s; l; \8 ~# w
, ], y0 X" D% Y7 e" C+ F2循环语句
' i9 O% V& _6 Y (1) from <statement sequence1>9 K' t! j2 J) P, l% P4 g0 K! [
until <condition> loop
% r# l6 g/ B9 Y, C# r <statement sequence2>;' Q$ C+ @3 O; |7 G5 o* C
end;
: L# z( f7 Y6 l" Y# e7 s (2) while <condition> loop* w* r: ^7 h2 ~
<statement sequence1>;
3 \& G P9 a; S, \5 T end;
* x# v Q4 t9 X3 I: A. Q) P (3) repeat ; r; w' o' P2 x: C9 N; r7 F1 t8 |
<statement sequence1>;$ D/ R9 `# Q9 I0 H8 G
until <condition>;
4 o' } t5 c9 S% B7 S+ A (4) for <condition> to <condition> loop
+ f: @- o+ |0 z |1 k <statement sequence1>;
9 \/ J6 U$ e& u next;
8 x5 |4 \) z$ h3中断语句9 G% g1 y7 ^3 Q% g- s
waituntil <condition> prio <integer expression>;7 h7 |9 \1 A" k0 j
! k4 X7 v, a- a( Y' A
9 g4 e! A' o0 \以上为常用的函数！
/ ^; u8 a1 E5 m; e还有很多，如有需要我把资料发到你邮箱里
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