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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
, E; E9 h D/ |0 h7 b g5 ? if <condition> then
" M( T* a0 d, W* [ <statement sequence1>;
4 P, T9 s2 b1 `4 ` elseif <condition> then: u9 P) t/ v$ z! Q2 D
<statement sequence2>;5 R* |5 A) @% m) l* ]7 O* t; \
else 9 g; {5 G- O! u3 }" a9 N+ f
<statement sequence3>;" S' R/ I( l* v5 ~) @% G" t
end;2 W! D4 s5 @( f+ n0 x1 J4 j
如果分支比较多，用：
# y' V2 ^* m- i; _0 H- y9 P% | inspect <expression>
% F* k0 L- a- [5 V6 x/ V0 T% i- F when <constant_list> then
- o0 S9 V5 S, U' M. \ <statement sequence1>;
( O' }0 e5 E$ y/ e! ~+ q2 }5 R$ ` when <constant_list> then
+ p! e0 T2 |4 ~6 F* B9 | <statement sequence2>;
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else/ ~, `9 h2 C' \
<statement sequence3>;% e) D6 l. q4 H( U5 K
end;
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2循环语句
4 c2 ~5 V9 ?" g- m+ W4 X, v (1) from <statement sequence1>
% U! i) ]" D4 V, L until <condition> loop* w; @! u; T( A& @' B
<statement sequence2>;& b4 U6 b5 f, F- E* X
end;' d9 Q0 `8 J K( `, i
(2) while <condition> loop
& p( N3 C* M, |. E% S% v* l4 [ <statement sequence1>;: g5 B2 Q5 ^# Q' |$ Z
end;, J. \( e1 O: x$ ~& x
(3) repeat
5 V9 p' [" g$ ?4 [+ F5 s4 K <statement sequence1>;; n J: u( c! @2 V
until <condition>; S) M; h5 S. n
(4) for <condition> to <condition> loop
6 q' C D1 i: g9 S1 D& [ <statement sequence1>;
2 z, n0 g& x6 z7 f. \" v2 T next;
3 d9 O* e1 l% F7 g ]3中断语句" O' `( w6 V1 g8 T1 [
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
[5 U* B3 n2 ~8 }还有很多，如有需要我把资料发到你邮箱里 & ]$ D1 W+ M& N: l. A& Z' Y2 Y/ K' _
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