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发表于 2012-11-13 08:48:12
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1判断语句 a; R' e( A4 o7 a2 ]* { r
if <condition> then v4 s7 S8 @+ ]
<statement sequence1>;
2 _6 ~: }6 T( } elseif <condition> then
% \# t0 E% q7 C; z; ~% A; Y9 a% E <statement sequence2>;
: e) c% y- g1 O8 m" P else
3 a1 t: X" {% n7 ^ t) u z1 J <statement sequence3>;1 F1 U, c5 u; a
end;
2 }1 v9 l% y; C2 s3 w( a如果分支比较多，用：
; E7 s& C. f; {" y5 f inspect <expression>
$ I6 m8 R- y# ^, E when <constant_list> then
% f$ \7 }1 F" |/ F c, t <statement sequence1>;8 {" V0 T; i! H& s3 n7 V# b- A
when <constant_list> then
- E2 z1 K4 r4 U$ I( ~. | <statement sequence2>;
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else
% H2 f' J. ]' P6 J$ H8 t( L <statement sequence3>;1 f& X7 n- ^5 e( V
end;
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2循环语句. W5 w6 c7 l" p# k
(1) from <statement sequence1>8 [. H# i4 u% A0 Q5 j4 O
until <condition> loop9 v' Q+ c/ Q( q8 ]3 t8 G& Z' U7 B- S
<statement sequence2>;
8 A& K5 i9 _1 x! @: l$ k( S3 c- } end;
! U) f# a" U3 l+ | o z1 L! z2 @5 f (2) while <condition> loop
$ W* ^4 `6 Z' g, J [' n+ W <statement sequence1>;4 x" k* S8 a$ ~' d7 g2 S5 r5 J
end;* |, t- ~3 h2 ^: }4 D* y
(3) repeat
% `/ X% W( r- V. P. P <statement sequence1>;
; q0 `9 d' R) g* N" k; u* R5 @ until <condition>;
9 N7 J% @# m0 w, n) c' D: M h8 A; t (4) for <condition> to <condition> loop: K$ X# `5 ]3 w; M0 M& e. d
<statement sequence1>;
& y# x6 |9 l% @ next;! e9 r$ } G) ~: M5 k; Y* d% P* J
3中断语句
: H$ S+ f% m! i5 q* _ waituntil <condition> prio <integer expression>;
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以上为常用的函数！
5 ^$ }$ i/ {7 k* U( w7 a1 B9 K还有很多，如有需要我把资料发到你邮箱里
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