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发表于 2012-11-13 08:48:12
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1判断语句
* t7 S* c1 e4 a! u2 C; }+ r if <condition> then
% |% H2 {- p: |# V* a) j <statement sequence1>;
0 ~6 `8 K2 t) ~ e elseif <condition> then
+ _3 x* c) }. e2 E6 j4 W/ I0 {6 ? <statement sequence2>;1 U5 }5 r: [2 d1 k
else ! m' V& D1 o: w" u
<statement sequence3>;+ j8 M% Z% l1 j& a" z& |
end;
* ?0 a% a' `8 t4 N/ ~5 C如果分支比较多，用：
7 D* M" j2 ~3 u3 O9 a4 O inspect <expression>
; c5 @0 y6 a7 G when <constant_list> then, L7 z$ [/ T8 D# t; O
<statement sequence1>;
( P# c) t6 y% X1 R$ p8 p. A3 ?) g when <constant_list> then
( I; a' F5 g9 y <statement sequence2>;
$ {* R- L' Z, u2 l3 I; j8 I ...
* f2 E- N }/ i* o else5 k+ g5 u2 v/ m) e' c8 K* ~
<statement sequence3>;2 O) x7 U }+ q5 M/ P, Z5 H* L
end;
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2循环语句/ w+ s( F$ D# n5 W- b
(1) from <statement sequence1>2 A5 w2 r9 x7 X$ ?
until <condition> loop0 c2 X+ o( B3 g9 v
<statement sequence2>;/ j% G* {+ S0 ~( t# n2 i) [1 ~8 ^
end;3 \' ^" y$ z1 Y8 _" f0 e( L, H9 r
(2) while <condition> loop
+ R% H7 n' P. `9 y <statement sequence1>;3 K! b4 R& X- S9 S/ g
end;- m; `7 `, f, Z H" K' s
(3) repeat ! y: a) d4 O$ U" J. q5 W
<statement sequence1>;
* i( P( F- F& D# {% @ until <condition>;! `# |$ Y' s- R
(4) for <condition> to <condition> loop' c1 D3 A$ ~% W
<statement sequence1>;
0 Y, B; H+ @7 ]: R$ n; I7 L next;
6 ~6 `: B7 T v! o Y3中断语句
; B% p2 x W! a2 |1 L1 h waituntil <condition> prio <integer expression>;
, ]( p' b0 {3 c5 x+ u9 m+ B8 X3 V9 ~3 Y8 b" m; F/ l. }3 L* P
2 I* V$ m8 l8 e S
以上为常用的函数！
& y( |8 F' r) Q$ [9 u: K2 j还有很多，如有需要我把资料发到你邮箱里 $ V! N: D' s# l1 s
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