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发表于 2012-11-13 08:48:12
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1判断语句2 Z5 a$ m" x5 v9 T' ]
if <condition> then0 [% D4 o2 F6 \8 w8 f3 c
<statement sequence1>;, y( |1 I, P% ~) A. d- D* S. ^
elseif <condition> then n9 t0 `* j: v/ d9 ?
<statement sequence2>;! b3 _/ Q2 v. r% j/ L
else
6 l% J$ n# @) E. M <statement sequence3>;. u& z' B9 n% p! q+ S o. ]- Y+ `
end;* b' \ V! e0 V3 m" W! R2 N5 I
如果分支比较多，用：
5 d3 i J; B+ g! W inspect <expression>
' V' U: |1 c. ]) F when <constant_list> then3 {' ?" w3 e; ^) z- U1 o
<statement sequence1>;
% ~# M' S1 Q) r0 E: I" n! r; G when <constant_list> then
6 t! H9 Q' w. ~/ l( R/ r <statement sequence2>; a4 T d0 J* G! t
...
. P5 j1 v- l4 x7 M6 C/ w6 h else
4 D6 X1 E# w: M2 @5 D/ X" f2 ^ <statement sequence3>;
2 Q/ E S8 O0 k- k$ _9 gend;" U$ C2 L$ S/ J3 y: T0 ?" G0 e
+ i" T; u) t5 q1 u5 \% s( |- b2循环语句
; ?& R' }2 Y3 R P9 N (1) from <statement sequence1>; {' r* X% i# D
until <condition> loop1 _8 H e! E% y3 K: ]' [
<statement sequence2>;+ T9 T' H! p) E2 q. O
end;
5 {7 K& i- }0 i% ^) V+ K (2) while <condition> loop
* w6 [$ L7 B: | <statement sequence1>;
' X" G4 d2 _9 O. }5 \: p end;
0 ]6 \& o; v& u (3) repeat # V* ?- \) z% B# J/ x3 A
<statement sequence1>;
6 H* d2 f: k- d* z until <condition>;
& o' S) C) { m/ H- {6 b9 W8 z (4) for <condition> to <condition> loop/ E3 v9 I- R; ?; C9 C
<statement sequence1>;
* n; i V$ x( P9 M8 N p; e% y) [1 Z# g next;
) }, r8 M: A" X4 c: n, ~, t3中断语句. A1 N7 V- N4 ~" i
waituntil <condition> prio <integer expression>;
* N7 j" r8 x5 T/ c. ]/ \) ^) n* j/ X" z6 s7 F/ M
u U9 }! A* z8 y& p$ i以上为常用的函数！2 v- o! O1 u. V2 |: S$ ]0 m
还有很多，如有需要我把资料发到你邮箱里
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