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发表于 2012-11-13 08:48:12
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1判断语句
9 }: l m/ B* A' O' M. g3 ? if <condition> then0 u, v2 e/ N0 }# o3 j+ h8 M
<statement sequence1>;8 A6 ?/ L0 z3 j% ~ H
elseif <condition> then
1 ^6 S* \- s( t" k$ B$ L1 E <statement sequence2>;1 m7 ~ R; s$ y O
else ) b3 H/ k6 i l2 y# J9 O+ ]0 O
<statement sequence3>;: f8 Y* |2 J9 B
end;! p3 `& a3 E2 p* w9 _
如果分支比较多，用：( d- I C( I, [( _/ B7 s$ G: \
inspect <expression>
# U) f7 j! Z' F ]( @5 K when <constant_list> then6 ]) n% H4 n1 Z5 w- a$ o) w. I. ^
<statement sequence1>;
; P+ y6 J" F; { when <constant_list> then( g$ ]# h# _" T# o2 S# R$ O
<statement sequence2>;4 I3 [. m3 Q: F. u7 {( j
...4 B' k' H# D; X
else
0 x+ m3 @9 t+ r( z; {) C <statement sequence3>;. A7 i- [0 U! ]4 F# ?1 _9 K8 Z
end;
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Y8 ~' ], R F2循环语句! B: w+ G7 z* j6 s% p% ~0 _( E0 k
(1) from <statement sequence1>
; m; z$ a9 z$ T+ l* I until <condition> loop
. x. F9 q9 K* u0 R6 ?/ b <statement sequence2>;
$ p2 h$ j0 ] }0 F2 T6 D [$ O end;$ E8 y9 R6 j* o Y9 u1 J# K
(2) while <condition> loop+ f) e+ D! q- r. v% \4 L
<statement sequence1>;
, U7 j2 O2 G4 E/ g2 _ end;
% w8 }2 L2 ]8 T% b( f& t* j0 r (3) repeat . h" L* C! V$ A' U6 S4 T, t- @
<statement sequence1>;
* L; A% D# @* x6 ^( n2 d until <condition>;' O- C* F, x3 J8 H, v
(4) for <condition> to <condition> loop
" D* f$ C! @9 i J$ Q" z <statement sequence1>;- j$ [2 W, O' e3 Q
next;
% ]: J; f( j3 [. P; I5 C0 C. S3中断语句
4 J, J/ V' {- O# ~+ Y0 k- D waituntil <condition> prio <integer expression>;
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以上为常用的函数！1 X) t2 E; W% k: I
还有很多，如有需要我把资料发到你邮箱里
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