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发表于 2012-11-13 08:48:12
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1判断语句
7 j: D# G0 d' I7 x, l. _ if <condition> then' h0 i/ B( h* z; q! ?" D) n
<statement sequence1>;( `& K9 ^) c) ]. f) x7 X
elseif <condition> then9 T, l. v. H0 e, f9 }
<statement sequence2>;( c# ^. m: c* ^5 }$ ]
else
; E$ J% t' x" w! J/ \& ] <statement sequence3>;, ^' t; B- M! L) D9 Z1 L3 G" E* `
end;. G2 u; m9 }3 _7 |, @
如果分支比较多，用：
2 `0 ]: K1 L; m9 T inspect <expression>
& Y# h. Y% ~8 s# P8 v# b- ^ when <constant_list> then
# O9 n% h2 C/ B8 l8 J3 `7 k4 z- p <statement sequence1>;
/ g* j; \6 E1 H8 n! g when <constant_list> then
( L. a1 T4 l- l2 x; H <statement sequence2>;
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else7 f( r" o" F) s1 Q2 H$ h. u5 y8 ?
<statement sequence3>;7 N8 h9 V* B) X1 B5 T+ y- E8 y4 k
end;! L9 r- c8 A4 g$ h' j; c, l0 B- P2 `
( W: K/ J* T6 J2循环语句' h1 I' U+ A; R( Z* C
(1) from <statement sequence1>
8 R# [- m2 O' @4 a4 z/ N until <condition> loop7 L" w2 V4 ` M; N& D* M) r
<statement sequence2>;& n5 q8 C$ U6 [# x! R* N7 P1 V0 ~
end;
: N$ k. l* p$ r2 A( k5 N/ e (2) while <condition> loop0 y, D) i2 o* [
<statement sequence1>; Y: l7 r9 {- z( l0 b: ^. g( K
end;
7 E0 ~: E1 z! i (3) repeat 0 _: D& Q1 X, C: P
<statement sequence1>;
+ h F, d0 z& N; d' {) A7 D+ R until <condition>;
% b: n( U4 w$ p* Y (4) for <condition> to <condition> loop) Q' E, t% a# @+ X
<statement sequence1>;$ Q1 r3 n1 i- u8 U2 ]
next;
I3 _* J2 |% M. c% Q9 K3中断语句5 H7 u0 i _. u5 G" w
waituntil <condition> prio <integer expression>;
v. ^* ~# n# q/ Q; K
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- Q* D( U1 e- f# Z% f以上为常用的函数！0 H( n9 H1 Q' l" n Z( g2 w
还有很多，如有需要我把资料发到你邮箱里
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