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发表于 2012-11-13 08:48:12
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1判断语句
# x9 f% K2 r; J& H if <condition> then
+ x+ E6 E6 e% w G& } <statement sequence1>;
0 {, V0 }+ d: _% l# B* Z8 S elseif <condition> then
W8 n: n- `( M# G <statement sequence2>;
1 q C& h' @# E: l3 ^) b( V else , [: e2 A9 p' I% q8 N
<statement sequence3>;
9 R* K' [- s4 b1 Q6 n) J end;! \, z1 a2 e' |9 v( f+ N" l
如果分支比较多，用：
: N* x4 A7 B/ d- y T' ?3 Y& x inspect <expression>9 y5 d: R4 I9 X* v% Z# E% G9 d
when <constant_list> then
- D! d% ~5 I2 V2 W8 V <statement sequence1>;
/ }+ X1 l3 C( M! D& b2 m when <constant_list> then4 A* H! ]7 r6 {1 R
<statement sequence2>;
, o- T. B9 ^/ U/ h* \* h ...
5 U. I' B! `0 f% u8 \ else5 Y7 l. G0 g$ _; B4 k* Y
<statement sequence3>;
" C B' C# Z' Y' h" w# Dend;% m/ Z) i+ m" ?
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2循环语句, \3 K, X# z5 O1 y9 A
(1) from <statement sequence1>
M, p2 _( S" m. I- N% k9 x until <condition> loop
! h/ p: t. L1 {) y: y4 j( O <statement sequence2>;1 n b" ^7 I7 Q9 s6 v
end;% c1 V3 v! X; b% b Y
(2) while <condition> loop
2 C, `" i# |2 d0 f' n! `1 c& t& N <statement sequence1>;/ n% d: T# D* |, a9 @2 \
end;
, _, d" X- K8 \( Y- [+ i& S (3) repeat ) D- W" d! {; S( P0 I3 n
<statement sequence1>;1 k: [9 T8 W% V0 ~ |* O
until <condition>;
; [, |# m. D1 \, T5 b (4) for <condition> to <condition> loop
9 O& F/ t0 M9 J- t+ D K2 }5 m- \ <statement sequence1>;4 F* x/ S& ^ \* W3 N \
next;" x) u$ A) p5 X3 k: c) l- C
3中断语句 D* F7 R! z- H, b, a' D
waituntil <condition> prio <integer expression>;
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0 @8 ^( G- ~1 ]+ J# M
& ^6 z, k& D( L, c7 p4 ?4 n以上为常用的函数！7 i; u. b9 a- l' y- G" L2 S7 g
还有很多，如有需要我把资料发到你邮箱里 1 v$ k, p. i: Y" c( z! _3 ~7 I
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