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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
. t. H& _8 J( D. C: w" x9 x0 D% a if <condition> then/ y x- ~1 V$ L2 q$ U* X
<statement sequence1>;- z& B2 K1 d# Q' h l1 R0 j$ G: W
elseif <condition> then+ F, [2 }% x. o% e4 U( _2 M! H9 {3 A# n/ Z
<statement sequence2>;0 G/ @2 a2 R2 l- R0 o5 s e# c
else ' `' a: W$ |7 _6 b, b5 `
<statement sequence3>;# F0 P2 L2 |& H1 o
end;, Y# V0 e: E* P+ Q8 I
如果分支比较多，用：) }4 C4 q F* g0 k
inspect <expression>
( i% F. j+ `0 Z B; g when <constant_list> then
v4 l7 w4 e+ X+ N0 ~: O7 F, r* z <statement sequence1>;
& m3 ^' a8 R0 L Y- G when <constant_list> then9 e! A9 e* [0 u% X2 k
<statement sequence2>;4 t+ l4 `6 X3 S5 X$ `
...
# e" T3 z6 n1 P2 Q else
( P; h* K! {7 |7 ^- {% {% M' S <statement sequence3>;$ O$ A) E0 G6 v1 T7 W$ ]8 m
end;
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2循环语句9 e" e. V% `$ y; ~% R
(1) from <statement sequence1>
% |' [4 o L& n, r' H% R# K until <condition> loop
& e/ |+ j3 s, O, f6 O5 `9 ] <statement sequence2>;, g& n/ C5 l/ A
end;$ Q5 V) [2 e3 J' Z
(2) while <condition> loop1 @3 K, k, z0 Z; Y& j5 C0 W
<statement sequence1>;& ?' X y7 D* x* N0 ^7 q( K
end;" {) S% D; E) {/ C
(3) repeat
) Q2 x6 |6 \2 ?7 C <statement sequence1>;
5 p' b, S2 g) N# ^+ Q6 Z until <condition>;. j" x0 c; }( \2 z
(4) for <condition> to <condition> loop
& ^! ?* l$ u* k6 t <statement sequence1>;: _/ X" Y4 l, W
next; o! b: A* P- `$ e
3中断语句
5 `0 m/ }3 N2 S: [4 y1 | waituntil <condition> prio <integer expression>;
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以上为常用的函数！6 X, u. r* _% J2 ]: Y
还有很多，如有需要我把资料发到你邮箱里 0 m/ c" Y" c' U2 {2 i0 w0 ]
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