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发表于 2012-11-13 08:48:12
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1判断语句4 R) X9 \. S1 t- i+ o
if <condition> then1 F- [2 j/ e2 p2 z! v- D
<statement sequence1>;
6 Y4 T/ A6 T# u: D0 Y5 @ elseif <condition> then
8 m1 K) E; N, C% X$ G, [) t <statement sequence2>;
# P: ~1 I5 k, _$ q1 B; D& S+ S else * O- t8 p( \' }: v7 N7 o
<statement sequence3>;
( t# n! T' s) ]. [) y9 v end;8 e ^4 N9 f8 Y4 k
如果分支比较多，用：
% O) L) y9 ^! `( x inspect <expression>
# s7 z0 r5 D* x+ S* N when <constant_list> then
; V( x5 I! L% Q# l3 v+ b4 o' H- m <statement sequence1>;
% o4 X& Z) V3 L4 O) s7 e% X when <constant_list> then4 V3 U/ I& ?! m+ X* f3 `
<statement sequence2>;4 u9 g" A7 F, c$ s$ t7 T( m
...
' _3 Q: m; ~1 N9 ?3 l3 v else
& N% s/ w7 o1 H4 {5 R% l <statement sequence3>;
8 D. D& B' ?( G9 y+ B; r" ^end;( X! o( t! h' A: u
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2循环语句
' V( S! I7 L4 j (1) from <statement sequence1>
# N* M; u6 S2 k6 M until <condition> loop
! [' q( w9 K/ } <statement sequence2>;
. [9 B( q1 ~; F end;! E8 m. a4 R4 ^2 M
(2) while <condition> loop
7 z; u3 t- j! t# d9 ?6 a <statement sequence1>;
2 W9 Y! k# t& e+ E; Q end;
: k! B' I- w. X( M- k( m6 q (3) repeat
/ B4 }. J. p: h, `/ n. I <statement sequence1>;
( T1 z$ m) l% h' Q until <condition>;
, P! l G% k6 T, ^ A5 |# N; \3 t* x (4) for <condition> to <condition> loop
$ j, u/ J1 r$ O" J <statement sequence1>;1 Q/ f/ n3 y4 t# q' m1 n! }) n
next;, n& s4 N* s/ _" c
3中断语句3 J, M. S$ B3 y5 J' B
waituntil <condition> prio <integer expression>;# D- y$ M; I( E8 d
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以上为常用的函数！- Z$ m! b8 n- @3 H
还有很多，如有需要我把资料发到你邮箱里
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