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发表于 2012-11-13 08:48:12
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1判断语句
! {, W7 }3 ~! Z- }; g7 F if <condition> then
. H( T4 c! z+ D0 i% x <statement sequence1>;
# G: s" g3 s/ h# T" b elseif <condition> then
: ~& d# p' e7 S6 W4 k <statement sequence2>;- d7 k: o. c+ K: k
else
8 [) T1 z/ l& _% L' f3 p! I <statement sequence3>;
' v3 W: m4 U4 v x end;
7 L7 q6 _6 X$ ]+ @% ^" R) |( \" v4 h! O如果分支比较多，用：4 i( N! G; d1 R4 _2 P5 _
inspect <expression>6 E' g9 f" G' _0 ]2 M- S/ Y- U
when <constant_list> then g P) g2 @2 m) r
<statement sequence1>;
0 b t" ~6 N$ p- }* ?% I$ E0 z& U when <constant_list> then
: \& b5 D9 O6 a# s2 q <statement sequence2>;
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else' u& D) g; g) s d- l
<statement sequence3>;
7 E. `! D$ }. E" R; x9 xend;
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! _ }) O: C, U5 c2循环语句
2 S' L# }& V& \; O" A9 A (1) from <statement sequence1>9 W8 O) z6 U X0 T
until <condition> loop: R/ H( ~" U! A1 H' H
<statement sequence2>;
0 `7 q% i6 }4 \$ i- p- q end;$ g1 U# H' K$ A ]) a- J6 e7 _4 @
(2) while <condition> loop( G( v5 z% X- ~4 a
<statement sequence1>;
: j4 }. x7 N) J; w1 g$ `: ? end;% R! j% N" f# z8 V; ?9 N
(3) repeat 3 a0 }- y r9 n4 e9 @4 r' W7 ^
<statement sequence1>;
' H( k+ U x D9 U# U8 O until <condition>;
( U" m. E# F& g" X3 D (4) for <condition> to <condition> loop
7 g& x; _, K, G" ~( _/ O$ w <statement sequence1>;: j# C/ B; w, g
next;& \& w5 n$ `1 e U2 t1 ~
3中断语句
$ Z# G7 R2 r, o% C/ s, J+ P waituntil <condition> prio <integer expression>;! E9 ]8 k! h6 j/ x2 |1 J) p5 ` m
+ d8 a: u* U1 x0 X3 k2 n& a* k! [8 @+ B1 f
以上为常用的函数！
, o% X* K5 S7 f: m" U$ n( c! Z还有很多，如有需要我把资料发到你邮箱里 / F9 V8 }& q d0 w' f; u
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