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发表于 2012-11-13 08:48:12
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1判断语句
% F6 D, m/ u% W2 I7 `/ _" V if <condition> then0 `% G9 Z$ v$ L3 ?3 \6 S4 L3 f
<statement sequence1>;; h" r1 o) K! b
elseif <condition> then
! j7 _' y# M) A; p6 C <statement sequence2>;
; K: L9 P$ r( e& |) f5 F, x, H else
' T; z# `+ T9 X" J3 T8 t" H <statement sequence3>;
2 i" u# S" T* S" V9 a3 y end;
3 i4 e/ i1 C& `* S2 f8 m如果分支比较多，用：
8 i* t: J5 B, y7 C* u/ N7 j* k inspect <expression>
: d5 @% A5 K& P, A s7 Z" @7 P9 M- t when <constant_list> then* E. ]- P% |6 E) m' C0 |- E
<statement sequence1>;
4 |3 X: H& m! `) _8 \( G# L when <constant_list> then
( {+ E X2 e+ I' B8 R8 g9 l+ d5 n <statement sequence2>;
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else
0 U$ s, n/ q( v F% | <statement sequence3>;; U8 k3 H+ I, L6 s. D1 M
end;
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" A, }2 m; [4 p' V$ U6 u3 g2循环语句' [$ R/ N% T* K' D. U3 t
(1) from <statement sequence1>( N D% i2 l' ^) ^0 m. L
until <condition> loop3 [0 L F2 ~, G6 Y
<statement sequence2>;
" ~) D7 _0 k5 y- e1 \ end;
/ _$ w9 P2 z9 ?0 y' f A8 F" t2 l (2) while <condition> loop M5 N- h# z r9 r
<statement sequence1>;
2 H; B6 R" S; u* p/ b; D5 [ end;
5 [: W0 I' Q5 x3 }1 \5 u4 b (3) repeat
4 P5 O$ ]; j* l M. Z' ?& z; C <statement sequence1>;4 y; m) Q. O0 p6 N
until <condition>;
. K5 H( h" [1 T( m# b; m% o* S (4) for <condition> to <condition> loop. k! C; p3 I5 F- e6 v% P' ~' K
<statement sequence1>;
& A) M" l% l# a% X* ~9 z% t next;
# G" p4 k* w0 F! C3中断语句0 M% G/ l2 W+ U* a+ c
waituntil <condition> prio <integer expression>;
% n T% r/ S* f8 h# E# ^! }/ c# c" ~7 [9 x
8 N9 v" m. r5 I4 i9 G5 M/ P: E" ?以上为常用的函数！
# I5 f- L; p4 Z% R& K3 r, {还有很多，如有需要我把资料发到你邮箱里 A5 Z0 {6 d! H1 {, O
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