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发表于 2012-11-13 08:48:12
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1判断语句8 z" u5 |' G) G# b9 P
if <condition> then
8 p6 _0 r* f" n3 ` u0 M8 X6 `. H4 e <statement sequence1>;
- R' b9 c& k: y9 `9 T q elseif <condition> then; C0 [ r; o( y% c$ M' T% h K
<statement sequence2>;
3 j/ B1 z; Z9 M: q/ e7 p# t! ] else : L P' f' k8 L2 R e! Q' V5 i7 A8 X
<statement sequence3>;
# [+ N1 T( q3 w7 E2 c# [0 ]) O end;
! P2 Y1 _2 z& V5 ]如果分支比较多，用：
7 A+ u! |/ c4 x* f inspect <expression>: C X& j2 o9 `' _6 f$ u
when <constant_list> then
2 T: z. m: O. C" W$ ~ <statement sequence1>;
; Z% o$ k5 T+ j6 ^( g; a- s when <constant_list> then1 V. J2 R7 i+ s' i/ Y; O
<statement sequence2>;0 m% {7 @5 A+ [1 [
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else
% u' P( {0 c, D& H2 g* q* U8 X8 o <statement sequence3>;
' B$ e) d) m' c, ?* z4 Z* |end;& j' Q- f7 W% K7 D4 _/ ~* K; `) }
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2循环语句5 g: w5 G% R: o7 w5 s0 U
(1) from <statement sequence1>/ h* g& j$ E0 H w: i
until <condition> loop
1 M; t$ Y0 @% w! I <statement sequence2>;( s* K |9 Y/ a/ |7 `
end;
4 b2 S `- D, v+ B$ l+ n7 l$ n (2) while <condition> loop' ?! I4 G! i3 K. y
<statement sequence1>;' D$ u9 J' @ l8 r
end;& R1 h+ |( j0 r/ w
(3) repeat
' f6 ^. v( l: R- t F( G) v! i <statement sequence1>;9 F4 L$ ]6 |1 h
until <condition>;
- j- `6 _% [. u( h; O% |7 d. _; Z1 c4 a (4) for <condition> to <condition> loop {# d6 q2 F5 Q9 J7 z& K% ^9 y) F1 N* x5 c
<statement sequence1>;
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3中断语句4 u2 Z! Y r. y" \! m
waituntil <condition> prio <integer expression>;4 A M$ i' f; ], c5 u( q) w* v
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2 R" ^+ S1 W% @; t) Q以上为常用的函数！
5 o* _$ p: J" E3 |( C9 q. R还有很多，如有需要我把资料发到你邮箱里
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