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发表于 2012-11-13 08:48:12
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1判断语句/ R1 p# f7 A: w9 {% u6 A$ Q
if <condition> then
9 t. N7 ~% k5 z5 V G9 _5 R <statement sequence1>;# c, t( ~2 ] l- ^$ n
elseif <condition> then4 X: ~; g* {8 }! X/ ]: K/ r
<statement sequence2>;
! I' O+ Q) W# a5 l- H2 l* s else
0 F0 m3 l* O5 i$ F' J5 r <statement sequence3>;$ K. r) _9 ^1 @8 ~% [
end;4 j8 i7 a" ~/ E4 N' f7 b% ^
如果分支比较多，用：
V# A- _# T- c, z inspect <expression>
( N: a* m T. d- l' k- j+ d: H when <constant_list> then# R2 q: ]; @( D
<statement sequence1>;
; H- c8 ]' o3 w$ j$ s! a9 I when <constant_list> then( ~: Z0 r, x) i. {* g( n
<statement sequence2>;
S: B W @, r ...
$ E) E2 `* Z; a2 [% k else
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end;+ b3 n! p$ P9 E& x- m) t# ^0 B6 v
& t8 m0 F. s2 O& l/ {% p9 z2循环语句
' k' i* m& y2 I1 A' ?- T' U; ~ (1) from <statement sequence1>
8 @; t( j. T( C7 K. ]$ a6 J until <condition> loop
( Z8 \6 [" G. @1 ?& I <statement sequence2>;
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(2) while <condition> loop
$ {* T7 D+ W5 K/ `% A! N9 E <statement sequence1>;6 ?4 A( u1 E2 {; d0 K/ E! N4 v
end;
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<statement sequence1>;
9 W. k) n& g: o+ B until <condition>;
( F3 B# v4 d9 d) U' Z (4) for <condition> to <condition> loop5 G7 @2 ?- p, T
<statement sequence1>;
/ t) W, l6 o7 {1 H% V) @' x next;4 r8 v6 f9 ? _ i8 }; _
3中断语句$ A" v1 a8 m% C: c7 G
waituntil <condition> prio <integer expression>;; m1 J( F" c9 ?# R" x
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以上为常用的函数！
6 ^( {1 r, Y9 k8 h9 b还有很多，如有需要我把资料发到你邮箱里
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