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发表于 2012-11-13 08:48:12
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1判断语句2 B! r. D8 h' S i N3 T+ `( P
if <condition> then
_/ x. h H; b% Z <statement sequence1>;
0 @* L6 i2 p1 o2 \$ g elseif <condition> then+ Z6 B& P. C" J% Z& |
<statement sequence2>;
! [. N2 ]9 ?! o. `0 k else
/ M* b4 }! p- J# E" ^4 P" [8 A <statement sequence3>;( {" k# s3 a6 o& [; o/ V5 J/ j, e
end;
7 i$ `9 n0 x/ I+ l+ F7 Z如果分支比较多，用：# g* ^7 l3 a* Q3 P- C- v
inspect <expression>
# A4 m S: M5 G) u7 M) V when <constant_list> then
6 N; h2 w" ?4 g7 S <statement sequence1>;
+ r! e* K D; q: m, G- D4 [" y when <constant_list> then
1 T" S* g! U: F) l <statement sequence2>;
8 t& {. G4 |2 ^5 ?3 n ...
- t: d3 I( a5 N, H9 m3 Y else. Q& g; `+ J& o( z0 V% e
<statement sequence3>;# D, D+ n0 L, {* `% e
end;) ]$ N9 S8 ?% `' \' A2 m6 Q
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2循环语句7 E |6 q+ [: m. f7 T
(1) from <statement sequence1>6 E+ Z9 t) a7 z7 ?6 G/ m
until <condition> loop
: {4 U6 I- i# h$ u <statement sequence2>;) U. E7 r1 p# I! ^# W( O
end;* K$ y( d. A" v6 w# t8 R. K
(2) while <condition> loop7 l' U1 r: I7 C3 I! P) z# s
<statement sequence1>;
; [$ A5 B# E2 x/ ^9 E# m; O1 Z end;
) C; R: T+ K. r/ D) H5 u (3) repeat
, g) g8 X: g- S4 }( B$ b7 x <statement sequence1>;& j$ L' b: X( W# ~3 x# m$ l9 C
until <condition>;5 a5 o: @" X2 B4 N4 r) L' `$ ]
(4) for <condition> to <condition> loop
) t1 V m$ O2 |- @5 q$ S4 @7 h <statement sequence1>;
9 A; V( [1 P, c+ c. Q next;
0 d6 Z! e4 h( R1 @3中断语句; o6 e% o/ Z) o& L
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
q: E& D/ o) F还有很多，如有需要我把资料发到你邮箱里
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