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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
- k- ^; x+ c# v/ E1 [; P, w3 m2 k if <condition> then
$ P. c8 T2 z4 q7 ]! N <statement sequence1>;
* E f( q5 Q+ C$ n, f- s( ~5 L$ _ elseif <condition> then
9 X: l( p. w% _* Q! _2 [ <statement sequence2>;
& d( t# p& T9 l6 E' c else ! M O6 E: h; E5 P1 }: f
<statement sequence3>;# p. g. Q; x& G. m- [/ z2 O
end;4 T. i/ K& v) \9 o4 a# \/ f
如果分支比较多，用：
+ W" X/ v" z G$ @; [ inspect <expression>, ~$ p$ c2 E3 @' c
when <constant_list> then6 e( c9 K/ ~1 q1 N
<statement sequence1>;* ?; J y e- K J5 _* y6 o! X
when <constant_list> then
4 o7 B% J: ~1 G <statement sequence2>;
3 k: G2 ? k5 \; [0 ?5 J7 C ...
1 b# w2 p# S/ D; T" ]* E else
+ k- u3 K& z2 _* a* | <statement sequence3>;
3 ^0 p5 `. i. h7 mend;
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2循环语句
4 ?* N0 H8 R+ N# ]7 u (1) from <statement sequence1>1 Y ?1 l7 ?8 d8 u7 u
until <condition> loop
# E; V2 H/ L' k! c1 w1 w! u! e <statement sequence2>;' W1 X. C( i* m. v- I
end;' a3 A/ j# g6 s& ^" U- O
(2) while <condition> loop" z1 f. A. x. U* Z8 Z2 v
<statement sequence1>;
, c# X0 R' @* `7 i8 m! ? end;
2 W6 o7 y# N5 k1 n3 \ (3) repeat
) E' s b. U) u4 l <statement sequence1>;
, ]3 w2 M6 a! S$ x) W until <condition>;2 m5 l, B: e* ^
(4) for <condition> to <condition> loop
: Z" b, m% e1 l6 |% ] <statement sequence1>;
! {3 K6 o9 C* h: n, L# ^ next;2 @% q! i, a6 r3 [$ e
3中断语句# Y, r0 @$ v4 Z8 l& G
waituntil <condition> prio <integer expression>;
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8 j) n: s! v$ ~7 @+ c3 v0 w以上为常用的函数！
& s! ?4 R& Z1 V9 P& _9 ]还有很多，如有需要我把资料发到你邮箱里 9 T6 l0 y2 `% d6 }
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