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发表于 2012-11-13 08:48:12
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1判断语句
5 E+ q. U) P% v( p% \3 A% k+ @ if <condition> then! f& D" ?1 v$ `" c7 U7 @+ B$ }
<statement sequence1>;
! U! i. m& t6 X& ~8 ^. y- O% Q elseif <condition> then
# I* z5 N4 ~/ v# ^3 D8 q! t3 u+ J4 l <statement sequence2>;
4 k5 S. W3 t6 p, ^ else
8 J/ i; I c/ \" _ <statement sequence3>;
( c% A2 H/ |2 m1 X# ^ end;2 H, T) f9 p; @2 V( X
如果分支比较多，用：
! ~& G( c/ }. H( ^' c: e/ K inspect <expression>' X/ V' l. d5 e5 x) M& P7 j
when <constant_list> then5 D8 b+ P# w+ m
<statement sequence1>;& w l: |& D5 |' W5 l; \
when <constant_list> then/ @8 P5 P1 Z# E1 H( F# P7 H' l3 B, X
<statement sequence2>;6 V$ p% v+ ^2 g& _
...
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<statement sequence3>;
1 r' E5 o5 F$ X* Qend;
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2循环语句6 I7 d) ], i2 l" U& Y
(1) from <statement sequence1> j: _3 X- T1 c2 u% P- F
until <condition> loop, G# T$ C) @1 a$ |6 {0 {
<statement sequence2>;9 Q; M# K! q' F% k# S. Z, O
end;
& m4 N6 Y& e" p0 x2 d7 P (2) while <condition> loop1 y% p8 g5 }9 D4 U: `! P
<statement sequence1>;! v, I/ d0 K2 m/ p
end; t/ B: B- B6 s" }
(3) repeat
+ k. x6 [" x& ]* w# q3 H, y+ n <statement sequence1>;
5 G$ ]* G' L2 k& I, Y# c& d( o9 f until <condition>;
# G$ U3 P" V$ q& u1 _5 o (4) for <condition> to <condition> loop
( E, b* @ ~- i5 R$ b8 H3 }4 c <statement sequence1>;
1 ~9 _, b% a5 a4 ?6 k4 H next;
; u6 V0 \. m: y3中断语句
2 d; v" c( z7 O" [' Y6 G0 b+ i waituntil <condition> prio <integer expression>;
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以上为常用的函数！
. |, F6 {: B! c还有很多，如有需要我把资料发到你邮箱里
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