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发表于 2012-11-13 08:48:12
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1判断语句
* e+ G' }7 ^% p! L$ G if <condition> then. k, i8 G2 K) k
<statement sequence1>;
5 u$ A: S+ A a9 o- M0 o8 g7 U1 g8 s elseif <condition> then
# T" h4 I7 R' \% L2 T <statement sequence2>;! L# H( W7 A9 p
else
7 F, G# B, q4 x3 b <statement sequence3>;
8 Q$ |; p0 G7 Q6 a$ s( d1 ?7 V, k4 w end;
, s% o: |& n& o7 V5 F1 W如果分支比较多，用：8 x2 r `! @) ?3 O' H+ s6 f
inspect <expression>
5 d5 z' d, B7 V; T$ R when <constant_list> then
' k/ L; J2 R0 v0 ? <statement sequence1>;
7 t$ S, k& N' u7 ]0 C' G' f when <constant_list> then# R- q+ T/ s# g" H8 s
<statement sequence2>;
+ ^3 N+ ^+ N( B1 A ...
+ x- p. h. n, @ else
/ f0 F v& c) E9 E1 o0 h <statement sequence3>;. _$ Z. y8 G. F4 l5 C% e- e
end;
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9 q0 L1 y) {2 B2 Z- t; \. }/ D6 p2循环语句
& A) n$ R+ `( M* e6 \. m- Q! c3 F (1) from <statement sequence1>
; {$ J9 x5 I1 E, F ?% ? until <condition> loop0 D$ T' w r3 e8 k6 \
<statement sequence2>;
$ E: G8 _4 ~; _3 ^; R8 ?! T' _ end;
e V9 Z) X. U* e( r! C4 }% p+ E) s (2) while <condition> loop
* H7 Q! ^& w2 ?1 x4 E9 l# n, T+ R <statement sequence1>;
8 C. Q7 v! Q+ K: H% G2 v W end;2 _8 i! o- ~" j; W7 ~& s0 C; ^
(3) repeat
$ N5 g8 ^ T7 }" v3 J! c Z! g <statement sequence1>;
0 i/ Z! @) P; s until <condition>;' j* g$ E1 o7 g+ d0 X% I
(4) for <condition> to <condition> loop! i& ~# B P- W/ R r
<statement sequence1>;% ~# H0 T% }, p2 \+ L; X
next;5 l5 J" L3 ` ^6 f: k3 A9 D: S% Z
3中断语句7 W# V' X! a. l
waituntil <condition> prio <integer expression>;. O$ _+ D1 j" [- U
^ q+ D6 @% {- ?$ g' W0 i4 I' Y6 ^
' X9 w. D& Q4 {以上为常用的函数！
2 i1 k& z5 T4 A9 ]7 S# s4 y$ x0 o还有很多，如有需要我把资料发到你邮箱里 5 A' b% f: k9 x* ^
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