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发表于 2012-11-13 08:48:12
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1判断语句
( ?; {& {9 d" H, u9 m if <condition> then# e/ d; i1 U* q8 m6 z
<statement sequence1>;
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<statement sequence2>;! T8 v0 M4 [8 z7 G
else
% ~/ t4 W" B" b9 O <statement sequence3>;
6 x0 |; P1 {5 j+ V9 K; L' z7 Y end;. g/ \% u+ Y Z
如果分支比较多，用：
% o4 g* W7 l7 c inspect <expression># ~' s3 T% B2 w
when <constant_list> then/ C8 V! S& N1 Z; x9 q; l
<statement sequence1>;) Y# z9 d) @4 r
when <constant_list> then, d; g( p! x% J. O
<statement sequence2>;8 c4 i5 g9 J& n0 ~$ S
...! ]) ?# w: ] _, ~4 J
else
9 _9 J; G% ?4 h& R: P <statement sequence3>;5 @/ o0 K1 u/ ~: L) `. _: x. F, J
end;
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/ _9 o# B6 w/ e2循环语句
% E- K+ [- W% ~* s: j (1) from <statement sequence1>
* @, \( @' l6 w0 J" c& n until <condition> loop. q* T+ h5 z* {3 c1 h: b/ ]0 d. K, R
<statement sequence2>;+ s& K+ ~ G. {$ l* U# {4 y
end;
' M( Y: k. n: [5 P4 ^8 k (2) while <condition> loop0 m% k/ u3 M: r- n% Z1 E
<statement sequence1>;
8 q6 P; g- j+ W; X; q end;
$ _9 c) `9 N; R6 E7 N" K$ G (3) repeat
- Y$ q& c% `) f1 z0 a3 v% _ <statement sequence1>;
2 P# C1 J5 \, _6 @* L until <condition>;0 ]5 C( q8 T$ t2 h1 ^3 T
(4) for <condition> to <condition> loop
! `* H- h) W8 j6 t- \, ] <statement sequence1>;
9 h( I( G. N; W0 t/ u" l0 O+ l2 i next;
: d2 v- k* G2 j+ x% w3中断语句) T2 O% u, D+ ~$ |
waituntil <condition> prio <integer expression>;- p8 I1 H' N) D0 O5 B
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$ [2 J# H5 T$ V+ K以上为常用的函数！1 C; s2 U# x! B3 [
还有很多，如有需要我把资料发到你邮箱里 * G7 H ^$ D$ P+ h0 l* i
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