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发表于 2012-11-13 08:48:12
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1判断语句/ z( I; {! D0 [! j
if <condition> then9 T+ J4 v# I, {8 k, l' a5 a
<statement sequence1>;1 H2 i1 B( @- z2 w/ u" e
elseif <condition> then
: Q8 S, ]& A, J3 i5 i- |' ]9 m <statement sequence2>;
& q& c) d9 e3 \& ` else
# j9 G, _: y; x6 ?7 r. s <statement sequence3>;' [) G! N8 J1 @$ c& Q
end;
! x0 o+ A0 e# H; h& i5 d如果分支比较多，用：
* j# @0 _( L! W, N inspect <expression>
- V% X" N9 l# ~' v* H; C when <constant_list> then
- l) O, Q$ T* b3 f$ o: U <statement sequence1>;- {1 ^6 I' ^" V+ m- W
when <constant_list> then$ }$ w0 x- ~ f, |; V
<statement sequence2>;+ q7 d" s0 x" a+ |$ r
...
0 Z) S0 Z2 h$ u else: U# u" b Y. `$ h, {- P
<statement sequence3>;5 q) G8 h+ n9 v" G, |; N
end;
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2循环语句
" l8 \( l4 t2 K3 y7 j (1) from <statement sequence1>/ V I1 v4 m( a" r: J, N" O
until <condition> loop/ r; r2 a, z T( m# G8 H
<statement sequence2>;) |0 G$ X' x. T1 l9 P1 W) s
end;
. [) L% x. S7 P( q (2) while <condition> loop0 t7 L9 @5 t; U( Q8 z" t1 }
<statement sequence1>;
9 ?6 c# T6 Q' ?4 i end;
5 ^0 i1 u) w5 T9 H2 { (3) repeat A. T8 ^/ z% q z$ |% p
<statement sequence1>;1 |' r5 S3 J: J1 O* ^, \& R! _
until <condition>;, z% C) a! |9 U5 Z* R t
(4) for <condition> to <condition> loop$ O! C' C4 q( ?; `
<statement sequence1>;
Z) s4 h+ F9 l( V/ p- \0 n next;
) a* g# B: d! t) s1 n* ~! m1 n3中断语句
4 Q' {9 S" ~# o0 V' y! w$ {5 y waituntil <condition> prio <integer expression>;* G' v) ^6 O( G7 E/ T' {2 ]
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8 x- A7 F) x# N. V( K以上为常用的函数！
8 `4 T5 N# h' T2 m8 c还有很多，如有需要我把资料发到你邮箱里
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