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发表于 2012-11-13 08:48:12
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1判断语句
6 l- S7 i. F( K! ^' z# L& }* p& M6 }0 J if <condition> then
* Z% W. S# V9 I3 v6 V* W3 z5 U <statement sequence1>;
( z# w b! _% C T- ~7 [" M elseif <condition> then
+ E# K* w! u4 N" i$ ~! o) [6 l <statement sequence2>;
/ \$ o! T1 g8 ~0 R8 G0 B else 5 D' P6 }) r& T! U( N% x0 i; U
<statement sequence3>;
, i0 m2 }, [: I1 I) F- m' e! Z+ d end;
% h4 b) s- {6 M p% c: R如果分支比较多，用：; Y: V8 z* ]; t( l% |; o
inspect <expression>
' }8 E8 y9 g) y- a& P when <constant_list> then; [# e g5 G7 {# o* ?. _, P5 o
<statement sequence1>;
) F$ n0 D0 Y6 s* F. o+ C2 \ when <constant_list> then
: @$ @+ _; k/ C <statement sequence2>;% z' ~* o, G" e9 p) ?- I9 u6 \. ^# Q
...
7 C, T5 E8 d9 Z' U( o else
8 {/ \- g- W" x' W) d <statement sequence3>;
4 x; Q& h2 A% \end;
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% \4 B% i4 q/ o2循环语句
0 O3 H# N7 s; l4 K0 M6 o% t. t (1) from <statement sequence1>" N; M O2 e _
until <condition> loop6 t* f9 o; Z+ U. r" E3 ?6 K8 i
<statement sequence2>;
, ?; o; N. Q6 } end;$ f( F3 W8 c' w) Q4 H
(2) while <condition> loop" r3 f% `) U& s* l8 X
<statement sequence1>;
5 U6 X2 l6 r$ [& s0 Z& A& F end;
8 f3 {, |: D) ` (3) repeat
( N* ~% s5 ]! |& W7 _! h) S, H <statement sequence1>;
/ _% v2 L; t2 Z6 e0 l& _ until <condition>;5 @& w `1 O8 n+ }+ P+ c
(4) for <condition> to <condition> loop8 B& H; n1 j' ]
<statement sequence1>;% L6 h) G r- t3 z
next;" N" N; w3 Y/ T3 U; m
3中断语句- o) x' U: {" S# ?
waituntil <condition> prio <integer expression>;1 m9 Y6 |/ X; I# ]# Q" [
8 A9 ^- X0 L1 U t
) F# d: e2 w$ E" Q: N1 X$ o以上为常用的函数！3 L/ ? A( }2 o- a
还有很多，如有需要我把资料发到你邮箱里 ! [- A9 N7 y# t: K
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