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发表于 2012-11-13 08:48:12
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1判断语句/ j1 h( w3 V6 `5 L* T
if <condition> then j* C: S5 y6 ]9 s! p2 \
<statement sequence1>;) A2 O- X( D; z [& `# {! v
elseif <condition> then
0 j- T0 F$ e8 U- w1 S <statement sequence2>;
+ A& \2 _& N) M+ {8 m; Y else
[) ^% d$ t5 s <statement sequence3>;
5 J. J" r, i2 q1 I! T: z& ] end;2 E1 n7 @0 |2 ?0 w$ `! h2 y6 B! O
如果分支比较多，用：
0 U- | S- z9 [( M0 a+ L$ T inspect <expression>* q6 A4 N8 z6 t7 x7 |3 @! X) g
when <constant_list> then! }; Y9 p/ a' Z& l, J
<statement sequence1>;
) h# D' k( j- I/ ~& d when <constant_list> then! z# R1 \: ~- R1 {4 }3 p0 j3 K4 A
<statement sequence2>;) {9 D1 |5 r1 T+ x
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else. k- n/ \& L4 `, q. ?
<statement sequence3>;
4 S8 F% N B8 d: v2 Eend;8 j* C% q! F3 n6 E9 w7 z5 @) U+ p
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2循环语句7 o" N# J* ~$ ?, ~7 p
(1) from <statement sequence1>
6 s$ m' J0 p2 k until <condition> loop ?* Q2 v8 X8 b, U4 F+ L$ L
<statement sequence2>;
4 g& [! C2 D7 E7 s( \ end;
7 G) \( g! b# W- H4 Q) u6 v! s (2) while <condition> loop3 V( V$ s4 f. L# l1 L9 d
<statement sequence1>;
& f# k: o* z; B& F! U end;: J! `7 @9 F G$ ^% }/ ]7 {
(3) repeat ' y1 @% m; _, j) E" a' ^& Z5 O
<statement sequence1>;3 i0 }1 j/ K! `3 {# u. _2 k" r
until <condition>;
^, N0 I3 Z0 K, H* d (4) for <condition> to <condition> loop
8 N/ v- x. n: h% q <statement sequence1>;
' c5 O8 {% t8 Y next;9 U r+ \" p" [& N8 e
3中断语句
& P6 R0 T' f' _9 q+ f7 y$ P( i, o waituntil <condition> prio <integer expression>;, q# W- R" y' m1 i: b, F* m: C
- O* ?' N) v# {
, g( z: \/ D9 t以上为常用的函数！
, M3 P) g4 k( h {9 |' j还有很多，如有需要我把资料发到你邮箱里 8 S1 s) p" b+ }4 Y' N" r
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