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发表于 2012-11-13 08:48:12
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1判断语句% p+ ^% n: `' e8 m
if <condition> then
/ I* v( ?3 H' M! S <statement sequence1>;1 V5 k% f9 B) z* Z+ d0 ~( ?: P
elseif <condition> then! k& e. Q8 ?- S8 T! |, Y
<statement sequence2>;
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<statement sequence3>;% ]/ h: I/ r+ f9 p9 k& C
end;
' a! s" @/ m U: P( x如果分支比较多，用：
6 r% ]) O8 F) K4 F) Z; A inspect <expression>9 P* ^$ o, F- d* `0 C. ~; b8 ?. o! e
when <constant_list> then
: a ]2 K- q# | t- o8 ~* w8 a <statement sequence1>;
% c7 q- i! N N1 o7 @: F when <constant_list> then
; a/ \8 v6 [; I7 {/ E" N <statement sequence2>;3 R2 b' R; g" _' |, \3 t
...
5 ~2 _& E" B# k$ z. |0 b else
) B5 m/ _" C( s* ?7 U <statement sequence3>;
* @" t; w3 b2 q6 d/ N: a; O0 eend;
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2循环语句( H& f5 n4 t9 I! V; x$ w. m
(1) from <statement sequence1>, D/ }) {9 e/ S# I
until <condition> loop
9 L: j# a* z8 V. b& l+ ?6 z <statement sequence2>;; U5 T) h4 p& p, N* M8 [6 s0 F1 G
end;& a% c1 A: K) ~; g* ^6 `# M$ ?2 L
(2) while <condition> loop* [2 C; T+ L7 d! P
<statement sequence1>;8 {9 C* f6 i. a$ Z* H
end;
7 ?* X/ n% F. E (3) repeat 1 k2 P: ?" d1 R6 L. D7 E6 Z+ Z* B. j
<statement sequence1>;
3 o1 [7 R2 u+ N/ o% i until <condition>;
3 c0 v1 {' P+ ?6 t7 k (4) for <condition> to <condition> loop; w4 i* _8 n. A( `7 I, z
<statement sequence1>;
: `: f4 n/ x, I' J next;
2 O+ u# d; F' z- c' D# d1 u3中断语句
7 g' B/ h$ b/ x) j" n6 `+ v waituntil <condition> prio <integer expression>;2 _5 r2 K& x6 F3 K, b1 I* b
7 `! c# c q+ e* _
; y8 D' g9 J1 g2 b S以上为常用的函数！* l( [8 ?7 d, x% D0 u
还有很多，如有需要我把资料发到你邮箱里 + U2 ]0 h) b! _6 v$ ^$ G
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