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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
. q B2 v; `, x if <condition> then
+ a5 ^2 M9 o: b0 K$ ?" M1 o+ M <statement sequence1>;
+ K9 x, r8 I2 D( V elseif <condition> then
9 f8 q6 L; Y9 ^. t7 v. H <statement sequence2>;0 r' X% ?8 h& f- e: j R
else : O2 ]3 ]7 m' V: s S
<statement sequence3>;
/ m, n: M" X c end;+ E. e& u( Y- g# x3 M6 T* e* S% n
如果分支比较多，用：
& ?- F) @! f5 `0 m) e inspect <expression>1 P3 T* T4 b6 I! o' ~
when <constant_list> then
8 ? | A! j9 \+ i <statement sequence1>;
2 W _* s) D$ }. I9 z* P4 G2 N4 L* h. M when <constant_list> then
( e; W: j- ?4 V; ~ <statement sequence2>;1 S7 H4 m8 j' S Z
...
4 ~1 W+ S3 g# \1 c# w- V else" N/ {9 Q7 L9 d7 M6 f
<statement sequence3>;
# E; D, t- w$ i' H% Tend;
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2循环语句
$ e( J5 G7 Q8 L$ x (1) from <statement sequence1>
+ s6 K7 A2 s/ M1 k$ ?$ E until <condition> loop+ {, y$ O% A$ n7 E6 g9 e0 \
<statement sequence2>;
9 a5 U, K" {) X end;
$ r7 c) e" ]' H. A$ K (2) while <condition> loop
/ C/ L1 N% M4 x <statement sequence1>;% h, w( ?% K1 L
end;$ V6 L% l+ H6 J4 T% s
(3) repeat 1 L6 e" I0 m* V0 N
<statement sequence1>;, K# h- k' Q2 g: D
until <condition>;5 n& a4 u3 D. s" i- L; d
(4) for <condition> to <condition> loop
1 R; G6 d) A s" m# s2 ]( {! F# I <statement sequence1>;
1 p8 {9 n( Z; k0 |* V6 E k next;
9 y1 Q F( y$ j5 F3中断语句
) ]7 {- R1 Z, L, |# \9 I$ _& V waituntil <condition> prio <integer expression>;
9 r* n9 U% i$ H% P3 C) |( `6 w+ q) G: g' ~! G: G/ P* m
- S( }& R4 }* w% W
以上为常用的函数！
6 L7 B S9 n0 v8 G0 u+ p还有很多，如有需要我把资料发到你邮箱里 ' x8 x( x/ z4 K8 F
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