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发表于 2012-11-13 08:48:12
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1判断语句 V% x$ c3 N- Y4 x' U% L' X
if <condition> then
5 \9 x1 @9 }- r( R <statement sequence1>;
" o& {$ T. V" G7 i0 m X1 i" M+ k; c elseif <condition> then
8 f c+ N k: y) c( P <statement sequence2>;, N. u/ \ Q; f
else
6 d0 K5 |* D; |" k4 k <statement sequence3>;& y3 J! {4 s, y! R
end;* H5 C9 |( r m4 t2 y
如果分支比较多，用：; q4 M* W' K4 z5 R0 u+ f( `1 j
inspect <expression>3 x5 P3 i; z; G6 C: \0 s
when <constant_list> then
5 `1 n, f8 z8 V3 X( B/ r! y% I <statement sequence1>;
3 I- g: L! V# ?! p# S+ s2 F8 z) Z7 o3 U' C when <constant_list> then( S$ }5 c1 ?" O
<statement sequence2>;6 n1 C$ S$ p W5 N5 g8 U
...
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<statement sequence3>;
- n9 v. _# ?; Cend;
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1 [/ K: {7 i4 X5 d% G2循环语句
1 v% N5 D b( |+ A3 t% \0 I, y. h (1) from <statement sequence1>
* i2 p0 }, O+ q9 a, n( ?+ P until <condition> loop/ Z1 \5 h6 p. c* D) ]3 Q
<statement sequence2>;
. B% l. }! S0 D end;7 C/ c2 f# w6 G6 `$ g' `9 I
(2) while <condition> loop
) w. O# E9 y* w) u <statement sequence1>;, W5 l7 @% z# x' E; S. q
end;; T" k- B1 P! F& Y* B: K
(3) repeat - j/ Q, X; v' }1 i; x2 k: [2 x1 O
<statement sequence1>;
* E6 o) H p% y4 q6 ] b+ B until <condition>; s# B/ E+ W/ w$ Z$ G3 i
(4) for <condition> to <condition> loop
! r! u B8 ?$ ]2 Z( _' ~ <statement sequence1>;/ _0 r% C6 H5 O1 N l7 A
next;8 U8 g6 C8 }) S4 s" b' ^* d% D4 L
3中断语句
0 l. e2 m. N$ Q1 Q2 N* S- x r1 O waituntil <condition> prio <integer expression>;, t5 L1 U1 P5 l) G# m
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4 L/ z. ~' ?: N( }$ U, F& P* J$ `以上为常用的函数！
1 h1 n6 `) f; K3 c还有很多，如有需要我把资料发到你邮箱里 0 f1 Z. H3 i& b% ^
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