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发表于 2012-11-13 08:48:12
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1判断语句& v% f5 r. y }' ]
if <condition> then
% ]7 A# A, b4 @ G8 F0 T <statement sequence1>;: v4 u2 k& G7 ?) v$ ~( J6 q9 k3 \
elseif <condition> then
4 t; s( {# N, A! N <statement sequence2>;
. {0 S" r/ c2 W2 k# y- J0 h; s else & {# }! w& z9 @+ O4 J
<statement sequence3>;
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如果分支比较多，用：" M* j) g3 L( K. k, H4 k: E
inspect <expression>
6 v: d' w# T% y$ E) o when <constant_list> then
6 c4 U8 |. a6 x8 I <statement sequence1>;: i' d: \8 X) r# \, T6 _
when <constant_list> then8 t: p8 L( _( \
<statement sequence2>;* v/ C- i h0 _' w( N. N c, C! o+ D
...5 _) ?; m, {" g; ^+ o: d t
else T7 S5 f ?8 x* z8 K+ c* Q0 F4 M
<statement sequence3>;
, O7 s! {" L& @: T( P8 wend;
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) o, v- L* [& d8 _8 G* I P' |, A2循环语句6 y$ G' c1 E! c6 |$ c
(1) from <statement sequence1>
4 V/ [& u1 g* C4 |5 v until <condition> loop( n; n' E4 |7 i5 U4 `3 K' Y
<statement sequence2>;
( J5 V( n. [( U& u end;
( t3 w( ^/ i8 h: P$ h (2) while <condition> loop
8 m [/ m& _. e* u1 X- S* V, f <statement sequence1>;3 G6 ^, J$ A. L3 m- p3 T- Y* f
end;/ l/ |1 _! m0 Q8 h& b; ]/ C* ?0 r
(3) repeat
6 S* B1 r- R( Y9 J3 w. \, U6 e9 k <statement sequence1>;1 \; J; _" m0 f
until <condition>;; S$ ?5 Q" g7 X# n: `" H
(4) for <condition> to <condition> loop
* R1 B& R" [$ v! _ A8 M+ m- j <statement sequence1>;) G. k2 j% T/ C, `
next;
) k3 V, X' o2 h) ` B3中断语句
: P) @+ `7 T9 `0 e6 m- S waituntil <condition> prio <integer expression>;1 u: C: S" [/ Z2 K( V
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以上为常用的函数！
, w4 A( c8 G: s还有很多，如有需要我把资料发到你邮箱里 $ [' x; x; [" q, S, r
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