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发表于 2012-11-13 08:48:12
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1判断语句1 D4 f8 c) q4 p: I) ]% O! I
if <condition> then
- t: m6 |8 j3 J9 T# B4 r <statement sequence1>;
" M0 _. v9 F; g elseif <condition> then5 n' u4 o+ [1 }& Y# R
<statement sequence2>;
7 \ H+ |# j- w5 t else
~! _9 H: C i, [7 e( f# k# g <statement sequence3>;
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如果分支比较多，用：
/ f1 E: ]" g8 V0 L' V5 h1 Q inspect <expression>
* g4 h/ M7 C ` when <constant_list> then1 X( Y ~( Q) L+ s6 i
<statement sequence1>;) i i# x; N- _( P. O2 h3 L( k
when <constant_list> then4 O8 E4 H" j+ Z7 Q6 f/ k6 _
<statement sequence2>;
/ n- o1 X3 s E- S7 f+ T$ } ...
8 D" m4 G1 w2 F1 s5 C. | else
V# K- r0 H7 Z& ^ <statement sequence3>;
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# A+ d I- E$ r9 j3 P2循环语句
8 M l; [ w G- |: f7 U9 H* @* a# Q (1) from <statement sequence1>- s/ t) w f/ t f' T* E
until <condition> loop
5 }! f1 H+ B5 m <statement sequence2>;
& j9 d' e; L# r% M! _ end;" H' [+ y* f5 f
(2) while <condition> loop
2 O9 A9 P" G" ^/ ?5 z <statement sequence1>;
1 y- M1 T* T) `7 m! v- I end;0 W# w1 d7 f3 Z8 B% m$ S6 F2 K
(3) repeat 2 b0 {7 C7 t1 `% t$ C
<statement sequence1>;/ O7 w/ V# Z3 R! }# p/ ^
until <condition>;& W9 ^7 ]0 P1 Y. }; s, j% a
(4) for <condition> to <condition> loop
, Z$ d$ ]- N/ z- v <statement sequence1>;
$ P9 p# g2 }- F# p next;! r0 `5 O `9 @# A2 H3 K
3中断语句4 w( S- {% o$ s* ]1 P# x% y
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
" I E1 r/ J& q. a& p0 d1 }还有很多，如有需要我把资料发到你邮箱里
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