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发表于 2012-11-13 08:48:12
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1判断语句3 _: P5 r& J, T2 \5 q
if <condition> then& G# \ U6 t3 w6 \/ w
<statement sequence1>;
, o5 v/ i" P. @$ E elseif <condition> then/ f, o% J* d5 z7 N+ Z" l
<statement sequence2>;. l i' h# i& p% S/ M- C+ W
else . a) G$ u: l2 H$ T$ j7 T8 H- V
<statement sequence3>;
' c2 {/ W# O* H! l end;, _6 {" L$ K; ]# s u2 v1 B- H
如果分支比较多，用：
5 C7 w" e" x0 D. k) k inspect <expression>7 j; q0 \$ S- s, F6 _
when <constant_list> then
1 Q9 [! |' d+ N- S4 m <statement sequence1>;8 f2 F( R a& ^7 u3 K* P9 ]% K. Z2 A8 N
when <constant_list> then
8 z0 z% P3 v0 \ <statement sequence2>;1 f% v% T! d2 _! ^! Z6 O
...
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<statement sequence3>;
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) T; ?" ~4 s) @2循环语句7 S) V6 B2 ~# W" _5 l7 C
(1) from <statement sequence1>
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<statement sequence2>;; ?0 @) h6 N- z( s' Z
end;+ m& K- N a( M p" W9 k/ o
(2) while <condition> loop# b! p) ]+ m" I9 Z: E' R9 r, S2 ^# S
<statement sequence1>;$ K5 ]; H/ H% }' ^6 z# q+ ~
end;. d8 h3 c2 N& z- X1 w
(3) repeat : j5 Z; ]! B: w& K* e; A
<statement sequence1>;
; M6 U: J4 P' Y& t until <condition>;8 ]& L M; L& q% ^+ S
(4) for <condition> to <condition> loop% G2 u1 ?2 J! W
<statement sequence1>;4 u. A* U) a) s. x* Y
next;4 t9 q7 n8 |. X. J" ?, m
3中断语句
0 J) s9 g6 {$ t8 \# {& z waituntil <condition> prio <integer expression>;5 ~- A- U+ X$ x" q
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以上为常用的函数！4 c8 N1 j0 M- D% S# i, M' a
还有很多，如有需要我把资料发到你邮箱里 : z6 e7 O. N6 P. R. o: Y. q$ G7 t( W
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