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发表于 2012-11-13 08:48:12
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1判断语句
1 Y) S; v! }: o! h/ L/ l if <condition> then. p1 _& t) B) ?; X4 O8 `
<statement sequence1>;
% B& T( z' `$ j6 J2 h1 ] elseif <condition> then
0 H- @, Q; K, ?; p/ i4 f# [ <statement sequence2>;
6 l. _5 D h2 F# k else , i. v( n; Z" {! g
<statement sequence3>;" w: w# l6 b- L& n+ K$ h
end;4 s) C$ c# C; W: }
如果分支比较多，用：, n) h# x5 i5 U. b5 q" m* m9 l8 r$ O
inspect <expression>
2 X* J0 A9 l3 l when <constant_list> then7 M+ Q: J. a8 B+ `8 E- `
<statement sequence1>;
0 a/ `: T/ m5 [; d+ J when <constant_list> then
1 m# S* z+ K" X2 d' |, l4 D <statement sequence2>;$ ]6 }% f i$ `( F4 e$ \$ k
...
, H5 V2 M6 r3 H6 [. ] else' p# M" R- L& q, r; }- R" O
<statement sequence3>;+ ^. Q1 ~$ {( l0 L6 V" R7 U3 u
end;
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; j( a9 l7 r/ y# ]3 L2循环语句
8 n. a& T: A n (1) from <statement sequence1>
+ F* G% S4 P9 D# u until <condition> loop
/ I O3 w! i' R9 H0 s+ d' p: p$ }) l <statement sequence2>;! h6 o, x$ ]6 J; b
end;
: i O$ z: w; I# Z- H8 p (2) while <condition> loop, g; r9 n0 |7 F7 K7 G G/ M$ |
<statement sequence1>;, i" |! V" H j" k1 p
end;
- D* y" I. {& s: _0 v+ o (3) repeat F4 {0 V6 W# W& r$ `* B4 K
<statement sequence1>;8 D& e& D' n- ]! c
until <condition>;4 ]/ B$ S- y1 |- M8 X
(4) for <condition> to <condition> loop4 I; C& d2 n! n( t
<statement sequence1>;
8 R7 u: d- O f: T! M next;
! \& g0 `% N7 b1 S) V" T3中断语句
: W) f; C: H; `, Z2 O3 _ waituntil <condition> prio <integer expression>;
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以上为常用的函数！7 N5 F. x5 l& U X& \
还有很多，如有需要我把资料发到你邮箱里 , B- F$ p1 j% _1 w! I
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