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发表于 2012-11-13 08:48:12
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1判断语句' U. \8 a. R8 Z$ x
if <condition> then* v2 t) P+ C* U) |
<statement sequence1>;/ v ?; A) _2 Y4 u) Q, }
elseif <condition> then7 l9 K+ z! t9 o/ T5 X
<statement sequence2>;) r* w1 s, ?' X, T
else
* A8 D8 r1 o4 l- [3 h( N <statement sequence3>;' w* r# A4 I- {% y H
end;6 n& X/ W! O& u% F# D; e9 B
如果分支比较多，用：
3 R! U5 x1 j9 [& k. ^ inspect <expression>& p' M% S: t" U' _
when <constant_list> then
& J0 Y" Q: I0 T- i# f- V/ `4 r <statement sequence1>;
5 @5 ^0 \; z; u$ S when <constant_list> then0 S' K" ?6 @0 B
<statement sequence2>;
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else
% K* y# i8 c( M- x <statement sequence3>;
9 |9 _, _* w0 G) C) z% F# u; [end;
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8 h5 V$ o0 N1 e- D/ x8 X2循环语句
- X5 N3 p6 X! h h! L: a! Z (1) from <statement sequence1>) R2 ]9 B/ q9 Z; q8 }* t8 l/ T9 D$ @# V
until <condition> loop
8 [1 Y9 h/ V: K+ r6 |' g <statement sequence2>;
7 d) X) `0 @" s, d( ` end;
/ L3 D$ _- I, E. w9 W* v+ p (2) while <condition> loop
# b; X/ r' X# d, Y% C <statement sequence1>;
; U0 {! `) t+ K5 [/ N$ K0 L* _3 s6 n end;$ p( N: i2 R; Z7 Y: s3 D' n
(3) repeat
4 Y5 S6 u. p! E. O <statement sequence1>;
6 J% i* I5 x- Y9 B until <condition>;
4 r2 X( j1 K: k; J) s/ W (4) for <condition> to <condition> loop
+ ]0 s% Y) i6 q' u2 N <statement sequence1>;
, E& A8 ~- N+ I$ Z( x3 _) p( \4 V next;# w4 b D) o: \ q0 P
3中断语句7 A9 b4 y2 M% z5 |/ j9 n) v1 N
waituntil <condition> prio <integer expression>;
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f7 {* D( m7 H* b: ?0 @* X1 R# Q0 g- R/ J0 v
以上为常用的函数！
* m, O2 |/ b# T' N" `: L; V: j3 Q4 Q还有很多，如有需要我把资料发到你邮箱里
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