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发表于 2012-11-13 08:48:12
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1判断语句# N3 R: ~- U: G6 d
if <condition> then
! x, k0 Z5 J4 N! b% Z+ l. h <statement sequence1>;
& t* a, |, H. l/ ?) u elseif <condition> then
( h& g# z/ |/ K- t <statement sequence2>;- f! I7 `: S8 I" Z( S# I
else
, V3 b7 J% @% C# H8 s* h5 v' i8 k0 p <statement sequence3>;: K C+ h( h/ K8 j8 o( I
end;
% e8 q; H2 `3 w" e$ B: U- I如果分支比较多，用：% g J; l6 w0 ]
inspect <expression>! Q9 ?. S' g0 K. ^' K2 m Z
when <constant_list> then
* _: `6 _2 W, c& x) A7 D- h5 f <statement sequence1>;% |4 G }4 E4 @. J" J' s
when <constant_list> then
. ], `( d, l+ t/ m <statement sequence2>;: v9 G& d: m' y
...
& U! T' g3 A. N. D5 N& @ else
- d W3 {2 U/ ^2 Y <statement sequence3>;, D* H/ M/ ?. U" @6 V0 y: V
end;
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& ]' t& [! H1 L4 [ U `9 _2循环语句 N$ D; k, K6 I/ C( B
(1) from <statement sequence1>
6 C. c" _2 A# Q: X/ G# {8 ? until <condition> loop
2 J+ z2 P, p: @1 ?& H' l <statement sequence2>;
6 @9 }8 c h# m+ s S. x* Y end;
# C4 g" e8 ^+ y3 p! {9 X1 G# x. g8 q- b (2) while <condition> loop
7 B: G2 `- D# i8 Y <statement sequence1>;0 T2 ^0 l( {+ s9 T6 i' d! k3 ^9 y
end;
# J8 R* W7 O' v) _7 w$ P; \1 I (3) repeat 4 o1 z: o( k) w% S7 k4 i8 c1 m$ P
<statement sequence1>;
% ], ]! A$ I' G1 R9 [; D2 K until <condition>;
, Q; O+ K2 }' X u5 _ (4) for <condition> to <condition> loop
8 t' v/ J" D9 d! { <statement sequence1>;
# D9 T: T$ ]) l# C" s6 x0 J' A next;- R, V, O! k) c
3中断语句
7 o# c2 n5 N' s s4 R- _0 Z waituntil <condition> prio <integer expression>;5 P& c' x4 Y6 t9 \
# }7 ~6 C% M/ ?; {& J
9 p$ z- V. S1 U, ?以上为常用的函数！
% I2 E6 E* m% V) y5 Q9 m p. w还有很多，如有需要我把资料发到你邮箱里
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