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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
9 e# m9 q6 z# r. r! S% B- _0 Z! l if <condition> then
6 S' |7 U$ j3 s% H6 T <statement sequence1>;, E% s% D0 x2 a5 A
elseif <condition> then
- C0 o0 V j( k5 J7 j% w/ a9 \ <statement sequence2>;
( d, S( T1 M O4 Z( P6 ^% t" I& a else
: f/ H1 z* B ?2 K6 h) L1 O <statement sequence3>;
8 X! C, Z7 E% Q. T- ^* H% l8 X9 f end;* R2 v8 }0 m; P! e1 c. S3 q. m
如果分支比较多，用：
; v0 L7 B5 w4 D( ?1 K inspect <expression>
+ x1 Y& Q0 q1 O2 t0 N7 m when <constant_list> then
6 f: [ b: [0 L+ A <statement sequence1>;
. c* ~, X* o9 w( z7 t3 F5 A when <constant_list> then0 h- f2 _; j, ^; x1 ?1 q$ j* Z
<statement sequence2>;
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else: s# C, s* ~7 f/ z. [" C
<statement sequence3>;' ~/ }1 z& w$ S/ i$ c0 ]% F
end;
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2循环语句/ Y8 j$ O$ ]) `$ Q: j' R& e
(1) from <statement sequence1>% Z* E' G. p2 X; U5 n: p' V
until <condition> loop' F7 H" u& o1 k3 N/ }- n3 e& e# s
<statement sequence2>;
_: F7 r5 h% W+ U( [+ R: a end;7 h& P6 }. s0 R0 C% b
(2) while <condition> loop( O; |* q: L3 Y, x7 B/ @- t' p
<statement sequence1>;+ }. N- W( F# k+ |! E! w4 Q5 |6 g+ m
end;8 }9 P9 y& p/ w7 [
(3) repeat ; P) k( C2 B! A9 Q! q
<statement sequence1>;1 \! B: X) u M' {; c. G+ j! ^
until <condition>;
' ]* M* l4 o& S9 e (4) for <condition> to <condition> loop
; G% G7 V. e3 {6 z% d <statement sequence1>;
" M; s& v, i& o2 ^6 f# } next;6 A. e3 z1 V9 A9 S0 c' Y0 K
3中断语句
) y4 T) D/ p. G& g waituntil <condition> prio <integer expression>;* X# h! L7 _7 i1 {( A- L9 V
( \1 \; d# h, D9 U
2 v9 _. b/ j$ i3 Y7 O" ^. S
以上为常用的函数！
% P* z# z; s1 N* E# M- @/ S还有很多，如有需要我把资料发到你邮箱里 # k- L/ t1 Q8 J5 ]
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