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发表于 2012-11-13 08:48:12
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1判断语句
4 ~ T% t' o6 Q% ^( Z1 h if <condition> then
9 Y5 ~6 L% a# o8 Q0 G% C <statement sequence1>;# F+ u% K% C4 f0 C* @1 K
elseif <condition> then* i _# i) G6 U: B
<statement sequence2>;
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<statement sequence3>;5 F0 I7 H6 W! r v$ T/ [
end;+ m _7 j& N* S! h7 Y
如果分支比较多，用：
?/ }' q5 T% d# G" ]" O) F inspect <expression>
" _8 M* d: H/ q8 A9 }! Y. ] when <constant_list> then
% H; D4 w+ p2 L, W2 H: {7 V* W# `8 m <statement sequence1>;
4 H5 @6 `$ G" g4 `$ G when <constant_list> then
2 ~3 [1 d% l; e. I; R5 v' Q <statement sequence2>;
: z* q$ v1 ~8 B. n7 q+ p ...
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<statement sequence3>;( o6 j+ b3 A9 C* J/ g; S
end;" k# X' ? M0 t* X$ A# I% J
9 `: [: I/ O+ q8 ~2循环语句
( F9 {- p. w9 X' t y" j2 ~ (1) from <statement sequence1>
5 H; D: R2 c5 _+ D5 a until <condition> loop
% ^6 g+ A* ?2 a8 g <statement sequence2>;$ v/ F8 N3 c! V* U" l' Q
end;7 s C; A! M X0 u. ]
(2) while <condition> loop
* e9 n) R$ [2 H% l: n <statement sequence1>;
1 `! w' L" K' y5 U" ^ end;
8 l6 V! ?/ X: \2 a) _: s, R$ ` (3) repeat
$ w7 O* Q6 l3 U <statement sequence1>;: L$ t+ X: Q1 v, r }
until <condition>;
8 T1 E4 f( p8 s, B7 L0 ?- j% p (4) for <condition> to <condition> loop
( z+ M# ^0 j- ?! _% q: p <statement sequence1>;2 x; i* `' H" j9 `0 x6 f
next;
4 n7 k9 B: [+ B$ K6 V- S: g% ]3中断语句
( Z8 E5 E8 e P) ?! M waituntil <condition> prio <integer expression>;
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. B. m, h# Q- h. V以上为常用的函数！' x- ~9 Y) l$ |0 I
还有很多，如有需要我把资料发到你邮箱里
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