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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
. V" ^" y5 y# p* m+ ^/ T" G if <condition> then. F6 B. K' z* `7 _
<statement sequence1>;% J4 Y9 p! j+ ]- {4 V. d0 S p; @
elseif <condition> then# [) V& O- u5 b! v( t
<statement sequence2>;, I5 @/ ~# f$ P" k- L, i- ~% i
else
5 k f+ P8 h, c% E <statement sequence3>;
1 b$ E: a' w2 R+ X( u1 S1 g% Y. b end;. l1 ]. C8 b3 N5 c) O
如果分支比较多，用：
' a0 ~3 \: Y$ q# w# w inspect <expression>
# C$ P! l& Z& c! k q4 y when <constant_list> then( L% F: [2 G0 g/ l) U" \
<statement sequence1>;
; s. Y. e: ?/ k5 E# x. L when <constant_list> then
2 J; ~5 D* C, D! {+ R# D3 C <statement sequence2>;+ X+ [# n1 t j* [* Q3 _
...
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<statement sequence3>;
1 G; B& p6 Z9 c" x) ~' ~end;
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2循环语句
2 `1 Q* h% p, i6 p# E0 m& ^ (1) from <statement sequence1>2 i7 T4 o7 h1 n" b" i8 e& G5 t
until <condition> loop1 e/ q* N6 h; Y% S) p
<statement sequence2>;+ r6 S4 L" {+ {6 U o2 q
end;
7 [; y5 f4 s2 g! V w# r9 b- M (2) while <condition> loop
7 N; ?. \1 ]* a9 r- q2 } <statement sequence1>;
5 B% m! b. ?* `2 W+ E& q end;
' ~* R% @) E F6 D! o5 F (3) repeat ! n. O1 R! d9 I1 w0 L
<statement sequence1>;
" e5 U' ]5 _: y) W8 I% u until <condition>; k l' J m$ F) r, ]+ V) h3 T
(4) for <condition> to <condition> loop
0 D3 H$ S: R" V5 ]* l9 l0 y% O <statement sequence1>;
5 V( ]/ F% q; r5 y- Y next;9 g% [" ^, ~( ~
3中断语句
, N* @3 G9 S* p: Z: T4 V3 Q waituntil <condition> prio <integer expression>;
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/ K0 v! y" F& V, n3 n以上为常用的函数！) m% W+ Q7 q- A! q0 G* _
还有很多，如有需要我把资料发到你邮箱里 1 f# e& ^9 l( q- d3 s" A
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