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发表于 2012-11-13 08:48:12
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1判断语句
0 M: d( ?! O! I: T8 X if <condition> then0 ~& q7 Z# Y" O* t- a
<statement sequence1>;
# B2 l7 [+ M: i) l- m elseif <condition> then( i: a, w6 T6 X$ Y5 N% `1 Y+ E
<statement sequence2>;
/ A: m. b4 j5 y$ [ else
% R9 t' j3 }: Y8 ~ <statement sequence3>;# \& o0 V3 \6 w+ b5 s- ?
end;( z. ]* x" [2 i
如果分支比较多，用：" |+ d+ K) H9 r- G* O" e
inspect <expression>& K3 l) P( i3 ?! Y% C
when <constant_list> then8 }1 y9 Z& V4 x: S" ~# U
<statement sequence1>;
. J8 L2 z3 Y }4 ?1 j5 y/ o' i( P$ O when <constant_list> then
7 J' o8 d2 m/ {) D; K3 [ <statement sequence2>;
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else
% x B8 C& L3 A- s <statement sequence3>;3 k" {( ?3 Q1 B
end;
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2循环语句( n& y+ Y# d# H! J
(1) from <statement sequence1>/ R! z4 ` X. p2 ]# `
until <condition> loop9 U9 ]$ ~% F6 l
<statement sequence2>;( y9 t* B& O. b9 L' h0 r2 x
end;3 d8 i8 z& B& A& _8 F% {' B
(2) while <condition> loop
4 R8 ]0 D9 g( g) e' j <statement sequence1>;! r: c3 o1 L: d; M
end;/ d4 D6 ?. e8 z [: Q. u O# b
(3) repeat - @2 F Y2 O% J; _
<statement sequence1>;
. P( k/ Z: v5 Y until <condition>;4 T) y# a7 w" L/ ]8 Q X" M: m
(4) for <condition> to <condition> loop+ o/ I8 f+ A9 o8 y; W. d8 G
<statement sequence1>;1 A* D, m, ^, p3 O
next;
, a; y W- U2 B* ~8 w3中断语句
6 v& ~9 P4 C2 Z waituntil <condition> prio <integer expression>;9 s, H' L6 Y t, b
n/ @* W0 C2 Y& ^3 G& J7 ]: N
$ f" d! O4 R. ~" r3 m, U以上为常用的函数！
9 p0 H4 g* h0 `6 h. K还有很多，如有需要我把资料发到你邮箱里 ' Z7 @2 t: x! T2 _
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