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发表于 2012-11-13 08:48:12
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1判断语句2 T e; e0 F% e4 n
if <condition> then
! \1 M. K! P& O3 M$ S <statement sequence1>;
- B7 D1 H* t9 |# x% l elseif <condition> then
, t& i% l5 D8 o) K8 Y: Z <statement sequence2>;9 e6 r d) Z2 Y8 H+ `* |* D% \4 J
else
0 E2 y, ]/ B8 E$ ]8 o3 G) s& h <statement sequence3>;
1 \( x+ O4 j& E% b end;
9 y/ M h6 Q* V5 e8 d! O2 e如果分支比较多，用：
6 m5 a c9 r. k; V inspect <expression>. v/ V" ?1 ]+ W+ a% O/ Q
when <constant_list> then
$ r9 [& J D! g! E/ a& `; L& |! Z5 e <statement sequence1>;5 Z8 G3 f7 b E, ^3 c3 x- W: _3 Q: l" q
when <constant_list> then* f; i! h% Y. _5 ^ `0 H* p3 C& @
<statement sequence2>;0 d9 ~% }6 k/ {, h5 h3 i
...
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<statement sequence3>;
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2循环语句5 w6 O$ p' N& l, U( F
(1) from <statement sequence1>
9 ]6 m, U) a8 j- | until <condition> loop
! H# K: p# k- v" p, Z4 _- u9 Y <statement sequence2>;
( ]1 s- [1 }" ~# W+ r0 A) O end;
2 G% K$ T( Z" Z! g8 c6 x (2) while <condition> loop
6 q) D+ c) m; j% A, H8 R7 d <statement sequence1>;
, U" Q4 _+ k. z$ k; ^9 v) F end;+ P, n2 l1 `; D
(3) repeat 2 s0 u% H( Q7 Q. p* j
<statement sequence1>;
3 v! f% p, N3 m% V6 F until <condition>;
; a3 l* F7 {' a: R7 O$ z (4) for <condition> to <condition> loop
; a* [9 p# \) x <statement sequence1>;
( H9 ?; D6 U0 R. b4 ?8 r: E0 ?0 u1 C next;
+ M9 ]2 P/ X0 L4 r( F3 ^3中断语句# D: `4 w# k/ I b+ k. x( P
waituntil <condition> prio <integer expression>;
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以上为常用的函数！6 i# u! `, ?; g2 j4 s2 j* t
还有很多，如有需要我把资料发到你邮箱里 : V: x% }8 b' m3 d
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