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发表于 2012-11-13 08:48:12
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1判断语句% t5 v9 p, U4 P; q+ D
if <condition> then
0 f2 t- K- F& N$ P. b! ^' k5 R8 o5 ~2 Q <statement sequence1>;& C2 c3 g0 E. }& | [. F: B3 M7 u
elseif <condition> then
- y8 ~! N' N$ o& j* ^; O <statement sequence2>;# Q9 m+ ]' E; ?4 u# F" [& n" O3 @
else 1 X! u! N! }* t, g- h7 }, `
<statement sequence3>;1 S" h3 }8 r6 F
end;& H2 F- @" ?4 b
如果分支比较多，用：6 M, p/ }" Y- V7 w
inspect <expression>
# _* H! `& X0 W5 v( H when <constant_list> then, e6 s3 P: a( F
<statement sequence1>;) k( P# x; C) }, p( _
when <constant_list> then
, e- T* {0 c' q+ @ a <statement sequence2>;
( E- B' a }; s ...
8 u3 J( C. j$ } else
8 y- U* e, m+ E2 M# n3 X" m8 B <statement sequence3>; i/ G) J5 S8 R) m
end;2 _, p' q G: ]0 A; I' ?& O: w! m
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2循环语句8 i# i9 w5 f; k) v$ j
(1) from <statement sequence1>
2 u" Z+ o- Y( O: ` until <condition> loop5 I; N/ Y/ c$ M" i% _
<statement sequence2>;; N3 p$ ^3 ]' ]3 E+ h
end;5 ?, U4 ~: t- i3 o: `
(2) while <condition> loop
1 I/ b5 {8 q# b% U& ?7 f! f" S <statement sequence1>;* y! F4 O2 A( n- S% B! t1 b5 L
end;2 p2 S8 M( c2 U$ W7 g5 {3 ?' x
(3) repeat
* N; N) ^* V6 H! a/ C j% v <statement sequence1>;% q& u3 w: Q" e8 W! R7 ]3 Y. M0 n
until <condition>;
6 q! g: w' n* n0 W7 A; j (4) for <condition> to <condition> loop* c% l2 ^+ Y5 n+ F
<statement sequence1>; i W- B2 J( s
next;/ m0 ^5 t: s5 ]* }2 a# B6 ?7 s
3中断语句0 h8 p3 k: x) k
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
5 V& ]* t+ N: U5 W1 n) B还有很多，如有需要我把资料发到你邮箱里 $ m8 U4 @5 t* E/ t! P, W7 k
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