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发表于 2012-11-13 08:48:12
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1判断语句
9 C2 \7 l+ m& [8 Q+ T: f if <condition> then
6 L4 P) j8 ?& w9 F; _ <statement sequence1>;
/ y% \, G& U& r- Z# H3 a elseif <condition> then- A, b3 o. H! D+ i# A" P T
<statement sequence2>;" _/ x, A& c+ d p& L
else
; J# z. G! ? Y$ K* t( j; H9 _: s6 o" S <statement sequence3>;
I) @& Y" n$ C5 G! n9 C# v end;
. w* r9 ^3 d5 M/ i2 a# O如果分支比较多，用：
/ v f! X& R+ i. Y) ~3 Z% Y; i' ` inspect <expression>& T5 H3 U+ f5 C. s
when <constant_list> then
; K$ o: Z, f: g <statement sequence1>;3 G# q4 w9 h- W# D2 u2 g
when <constant_list> then
! j' H8 G* ?9 ]$ } <statement sequence2>;- o4 E7 T4 F. u3 O2 @* M4 R* A
...
; Z* w# C; t! E. _ else
+ l! G, l, }5 U9 ^8 E0 C <statement sequence3>;
) @. P# z1 I3 Q7 Iend;
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2循环语句# k4 h: Z! B R" V
(1) from <statement sequence1>
5 b6 [* l9 D- s4 @/ F9 X" R until <condition> loop
' T$ l; m+ W5 g7 w <statement sequence2>;$ f5 u# I) N. D; K
end;
+ @6 |4 h' D. j2 V (2) while <condition> loop
8 }" g! Y/ a8 [& Y7 m <statement sequence1>;* S! o0 Z ^7 @4 \
end;5 @; B+ x: P# t6 ^4 M ^% i
(3) repeat
6 C4 b% z( L6 p' M3 Z <statement sequence1>;. G$ o$ G8 _, K1 s# i+ n
until <condition>;& c( T* t7 V! q& n* f; e
(4) for <condition> to <condition> loop
, w: j9 j v) Y <statement sequence1>;7 P Z2 e5 ?- p. J7 C7 y2 N
next;
$ T% A$ z! V6 C/ Z8 f8 D3中断语句
, s' c' l% }4 O waituntil <condition> prio <integer expression>;
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以上为常用的函数！6 w$ N, X0 ^$ w ^9 [+ G: m
还有很多，如有需要我把资料发到你邮箱里
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