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发表于 2012-11-13 08:48:12
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1判断语句# T) k1 q0 Z2 S q4 P
if <condition> then
- @* @% s5 l4 {# K6 |4 i <statement sequence1>;: l7 e) C% Q Q) C+ S( m
elseif <condition> then
$ y: z/ T4 d) O: e7 H e <statement sequence2>; K* V" G$ p3 _) L6 j, L+ P$ m
else
- u7 D& s7 j) |* I0 k8 `/ k <statement sequence3>;
4 E: ^0 V! {! @1 h8 J2 v2 w end;
5 x6 v. N& a& \如果分支比较多，用：
! i: ~6 A% I$ _3 q inspect <expression>
) |' m% i5 H/ n- ] when <constant_list> then$ j Y1 } O" R! |
<statement sequence1>;1 D; x# D' g' ]& O5 }; r5 a6 T
when <constant_list> then# D/ k- h7 \6 F2 {5 Z! ]. j" b
<statement sequence2>;
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<statement sequence3>;, n# H- Z* H) h
end;
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2循环语句
0 |% }" \) S5 A0 Q. u0 E9 n (1) from <statement sequence1>4 j) o/ ?5 U0 t$ o! F% w$ J( l% v
until <condition> loop
" z: [: p, t* y+ ] <statement sequence2>;
Z8 A, s( U" ?" F7 S end;
" p: l8 {2 r9 S6 } (2) while <condition> loop* _1 U( Z; g; l* A
<statement sequence1>;) A: _8 k0 M& O
end;
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<statement sequence1>;
+ r. z( h7 H6 n0 [1 \% p3 j, ~8 ` until <condition>;4 T* m2 h+ [* |8 H) L5 C
(4) for <condition> to <condition> loop0 t% X, K8 G1 z: r$ Y8 t/ I
<statement sequence1>;1 {4 X3 h+ F- A$ Z" e
next;8 o% @9 m" B' x8 d1 w
3中断语句" M1 a7 p B4 _2 i5 D
waituntil <condition> prio <integer expression>;+ {/ E: F' V+ Y" G
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3 a- f: b# Q P以上为常用的函数！
6 s9 V+ r5 q+ Y还有很多，如有需要我把资料发到你邮箱里
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