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发表于 2012-11-13 08:48:12
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1判断语句 @3 Z. z* x5 P6 J4 b0 i
if <condition> then5 \( U k3 t5 t9 j2 P+ P1 b0 n4 i
<statement sequence1>;) a; H+ e- h; z
elseif <condition> then
8 o( O3 x4 D) J5 R0 k6 h$ @ <statement sequence2>;
2 l' z. {5 Q) G& D0 ? else 8 n5 `9 h5 @3 U9 a
<statement sequence3>;
8 H% A8 E1 K- y7 _ end;9 u, j. N6 g6 y% ~
如果分支比较多，用：; \6 X8 a! [$ o, \+ u1 {: [/ L/ Y
inspect <expression>& _$ c8 J5 D8 c
when <constant_list> then, D ~3 \/ b4 [! _( ^" b
<statement sequence1>;- d/ f& N& O7 z, C
when <constant_list> then$ ]" e# V1 N8 A3 A
<statement sequence2>;# {7 ^5 Z2 f4 |: i
...
% o9 u8 D1 ?) S3 W5 n" Q else
0 [3 I# r9 p! G* }' u <statement sequence3>;
% v! R9 Q* _3 e, v; k' U; Tend;6 D6 ]& Y! e9 d+ z V% m' |
# c0 e' m' p5 |5 M0 m) f- v; a7 v2循环语句+ e4 U+ g1 q/ o5 [. j) s4 S
(1) from <statement sequence1>3 J& m8 X& t; v, _/ w; G' h/ ]
until <condition> loop3 ~0 L$ l" V5 W5 G4 ^( p
<statement sequence2>;
! }( W/ W- P9 R% W2 `3 W$ `; M end;
' l3 |' Y5 J+ [4 {4 b (2) while <condition> loop( r! O! i$ s: i) g# O0 }) u8 e
<statement sequence1>;3 }* Q$ |4 M" Y8 B+ s- b) J/ V& T
end;; U0 G; L2 H0 d. y f9 h
(3) repeat
6 C7 J% z: ~' p* y <statement sequence1>;
% p$ q$ V& W0 @0 J- V until <condition>;
" J. `) b% @5 b (4) for <condition> to <condition> loop* J5 {: r+ K8 K& T1 n- _$ W
<statement sequence1>;, U" G4 x& W+ s3 ]3 S) `
next;
2 q" i% G7 t* ]% m" t% I3中断语句
* n7 \4 r# A7 _! I9 q i& P waituntil <condition> prio <integer expression>;4 U2 K/ Z: ~- u4 z, \! c, ?5 O6 D! W
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$ e$ V; a. w0 V7 Y' h以上为常用的函数！
: g+ i3 A. S; ]; n1 I+ Z( w# u2 p b还有很多，如有需要我把资料发到你邮箱里
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