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发表于 2012-11-13 08:48:12
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1判断语句3 S' T% N) s( D; V
if <condition> then
9 Y1 g* @6 P( n; z2 X" a- [ <statement sequence1>;1 B7 Y$ g! l4 k
elseif <condition> then" v* e: O8 ^( I* \) k( c
<statement sequence2>;2 I" A/ R2 U* C) c: r
else
! \! }! g1 I: k4 @( Q2 l <statement sequence3>;7 x* \5 S* V! I: V+ l) H& O
end;
; i+ S, z) c c" S; [如果分支比较多,用:7 c, i. e e+ G3 v- F% A3 ?: O
inspect <expression>
0 l% A$ ?! q! E& Z+ P when <constant_list> then, y7 @7 J( Z8 O( j- r. t
<statement sequence1>;
. [. c B, m, H4 g# L3 m when <constant_list> then
& H7 l2 S) c" {3 q <statement sequence2>;
) |4 z Q) y6 ^ ...
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<statement sequence3>;
) F+ I) r9 }+ B. {9 ~9 _2 Nend;
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- O8 N* Z1 \7 M* @ S/ X4 H2循环语句
8 U& `2 s g2 e) }5 | (1) from <statement sequence1>1 j% w# U' { X$ q1 x" j9 y
until <condition> loop
9 u* m [/ j% Q) Y P2 o4 L <statement sequence2>;
( h4 p" N+ {+ p% v/ J) N end;4 h& t+ k, s) d5 D
(2) while <condition> loop
, f7 V8 h2 g' Y7 e) X: o5 M <statement sequence1>;
# I) L) Y5 i f8 Q6 W end;
4 e9 o8 o+ `# B (3) repeat
9 E5 V4 W1 G W1 {6 ]7 [. X9 E9 F <statement sequence1>;" w3 p+ S6 ^! H* X
until <condition>;$ h& `$ r# v! s
(4) for <condition> to <condition> loop
+ R: g0 r5 l; ^ x9 e& B <statement sequence1>;5 f9 G/ h- r0 V& }5 ^
next;. F9 [/ P2 R4 s6 p
3中断语句
: ~* `6 y+ L4 C1 k waituntil <condition> prio <integer expression>;
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以上为常用的函数!5 Y; P' ^) O Z& f$ l6 x# K
还有很多,如有需要我把资料发到你邮箱里 3 [; t6 q/ n [+ M
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