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发表于 2012-11-13 08:48:12
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1判断语句* f/ e2 v0 j8 I* w* {6 O4 d
if <condition> then/ {4 ^# d2 Q1 Z
<statement sequence1>;# i( m1 ~- @: i( t; ?0 A& h
elseif <condition> then
0 [. J& k8 }) i& c2 M% i( n <statement sequence2>;+ z7 T" n3 d7 e3 A* O K# ?8 `/ n
else
- n& b- b4 `! X/ w6 P <statement sequence3>;4 X" s" N" n# R' q7 r, Z& F
end;
$ j$ X0 q+ Y) V! E% j5 J如果分支比较多，用：
# x% D+ b, P& |, U. d inspect <expression>" h: q7 `# d4 o
when <constant_list> then
( }* O) g! U8 l <statement sequence1>;8 b+ Q' p C6 K1 O
when <constant_list> then9 @ V1 A+ w/ ^; }" W0 v: K
<statement sequence2>;
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else
$ Z" J7 [7 `* L. d( t0 A <statement sequence3>;9 Z$ ?* L& }# p$ H% ?
end;% O6 Q) ^: M" t5 E
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2循环语句
' e9 n) O: s5 @3 v* C1 z (1) from <statement sequence1>
1 R4 Z |0 t+ k2 _0 ?5 u. M until <condition> loop: R$ h, q" s" _1 Q
<statement sequence2>;, } U9 v$ B9 p ]! d# A9 }/ X2 v2 n
end;
0 [/ S; Y' D; \% S3 z (2) while <condition> loop
0 Z# h8 b+ n x# u( L$ t$ W ~' Y <statement sequence1>;. E9 \$ e0 _0 Z( `
end;
2 e$ X4 G" T" z/ q& ^" X- ~- H (3) repeat
5 F) l8 m L j" K) r <statement sequence1>;) S/ X: ]* B) {
until <condition>;
/ k7 T9 r$ D$ G& [4 j+ t (4) for <condition> to <condition> loop
! I( Z! g) E0 z M <statement sequence1>;
3 ?& B) C/ c# c$ B next;2 V/ \+ D1 ]! t
3中断语句
* U# Q, H1 b9 P waituntil <condition> prio <integer expression>;7 H) @" h. {+ k+ H" h
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6 v% B" R! T3 ?6 @# a( L2 a$ E以上为常用的函数！
3 q) \7 J3 V0 {" c6 f) G; |还有很多，如有需要我把资料发到你邮箱里
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