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发表于 2012-11-13 08:48:12
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1判断语句
& N' K4 v/ A: ?" j1 F& g$ N if <condition> then
2 v1 ` e! l" r* }# u: c( g <statement sequence1>;# O& c& }0 r3 U2 \
elseif <condition> then% b# n/ Y! X j4 a j1 n) x; n
<statement sequence2>;
( j' i8 D# i7 g% [' @ else
" ?! m$ \8 A- Y <statement sequence3>;
% N5 D& E; i1 c' |+ A6 r) {6 Z& _ end;
' B9 l# M( ^4 F- A0 g! l: s2 G如果分支比较多，用：
# g) [% ]+ O' G6 M) D inspect <expression>
$ k1 D1 c" {3 M) r+ S& c4 ? when <constant_list> then5 n9 {& V5 y6 R$ N
<statement sequence1>;
9 N3 L6 x& @( P( Z when <constant_list> then
8 o' S2 w# @2 t. f6 _3 W) J8 a <statement sequence2>; F) z+ R7 p: v0 O& d' F
...
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<statement sequence3>;/ f" J! O5 s. c7 x- v& X# _
end;
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2循环语句
8 ?5 K' ]; c& F: b (1) from <statement sequence1>9 }5 y* F+ |* w$ D+ `- M! U; X& m
until <condition> loop
7 F% X R4 u# d <statement sequence2>;
- a0 e8 E! R4 u) y6 W. W end;* T$ V1 [( x; Z0 q0 }$ M
(2) while <condition> loop0 h6 P4 t9 O+ D
<statement sequence1>;& g8 ]7 ]& R) k* n
end;
0 M5 W6 p6 Z5 w (3) repeat 0 ~' s8 q1 P' p5 j
<statement sequence1>;
0 {* t3 s2 e" y until <condition>;
. ?) d& A- I% Y# j" M (4) for <condition> to <condition> loop
. Q3 \* E+ @8 z- _ <statement sequence1>;, R+ D; t2 w5 y8 w; O, S) a
next;' h: G1 a9 ^& s* d' T
3中断语句
8 A: z1 o9 F9 g8 D9 I waituntil <condition> prio <integer expression>;% G2 d- h/ k1 f$ f
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以上为常用的函数！8 c5 O$ q( o% o
还有很多，如有需要我把资料发到你邮箱里 ! g* T2 U6 ` Y2 ]& K- P. n" c
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