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发表于 2012-11-13 08:48:12
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1判断语句; W7 y( w* l0 \- q, {
if <condition> then
* D' F. _5 g. z$ a i <statement sequence1>;' k+ k) F! Z! ^5 ]9 ?9 h/ @
elseif <condition> then2 c" i! I$ ?9 s; U
<statement sequence2>;
6 a9 m7 f1 V8 K2 ~7 _ else
' _9 Y3 W0 U) Y; i8 i: E8 T <statement sequence3>;
' g! R) @1 d& U1 C9 I4 _ end;
1 I2 `1 A2 l" X3 ~! O- _如果分支比较多，用：5 `4 l/ | q& B' ?0 O8 D# ^( g. n
inspect <expression>5 ]) i j3 Y1 H3 R% O O" H9 _
when <constant_list> then
' A6 c" C( B+ M8 ]' t <statement sequence1>;
0 h% Q- c) e: z6 B7 d when <constant_list> then
% Y5 t- J3 x" L <statement sequence2>;
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else' }6 B4 {- B, V
<statement sequence3>;
5 R) u/ Y- _ B" j8 _end;( d1 z, p: z8 j* H* j3 B' q/ {( ^) \
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2循环语句
5 T: g7 v1 i* o0 e (1) from <statement sequence1>
% F0 Q' D2 {3 G% E+ J$ M" s until <condition> loop% H2 ~9 p% w- s/ ~; K
<statement sequence2>;
9 U4 E3 i; P- N. ^( e& |" ~, r1 b+ {$ Y end;
" m7 r9 i6 p' P- e& l2 z. N1 r (2) while <condition> loop
* [" M; M% r3 H! r, d <statement sequence1>;
' K0 y' U8 p. F! U. O ~- G end;- ~' M' H7 s v& ~3 k
(3) repeat $ e) s7 G3 W9 r7 G1 z
<statement sequence1>;7 B( X2 i# J9 y& s
until <condition>;* j) R* ~# W, U/ q
(4) for <condition> to <condition> loop# n' X2 c4 e E8 b$ h1 U
<statement sequence1>;4 n: Y6 n! `3 q7 Z# @4 q
next;
t7 C3 x. f+ p- ]3中断语句
7 e m, v( `5 b) @ waituntil <condition> prio <integer expression>;
" u+ L, w) u+ U8 H' Y& c& w% }& |' Z' F" e2 S. N7 W4 q3 \
( ]; G9 O l# K* k3 Z以上为常用的函数！& O" @: ] j0 s1 L( {* n
还有很多，如有需要我把资料发到你邮箱里
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