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发表于 2012-11-13 08:48:12
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1判断语句
0 D% q" n( c# h5 \6 E6 i if <condition> then
1 e& @, |# x' i8 H <statement sequence1>;
$ m: J# G) l6 k1 }- Y+ c+ T elseif <condition> then
4 b4 G! D6 P O( V <statement sequence2>;9 a# \ \4 R+ A6 C) o' p" q
else
) s- M+ M' D8 l4 B <statement sequence3>;: d# q2 ]9 f9 [( f
end;# d- g; {8 v: K0 A
如果分支比较多，用：
! f* L" L" l4 T inspect <expression>6 x# {* ~9 J% @, s
when <constant_list> then
( G! k# f; Q5 g" |; a( b6 m <statement sequence1>;( l8 I; j" t' P$ e; W$ O
when <constant_list> then7 q$ k; f; J9 ]
<statement sequence2>; q$ a$ X" Q7 c2 C4 j9 z0 c
...: x. ]( H0 C3 j4 n
else
$ Y3 j- W) r, P x0 @; a <statement sequence3>;3 \# v; [8 p8 \& N5 S2 W' I
end;
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2循环语句* R9 q5 Q- V- M* y7 Z, n0 C
(1) from <statement sequence1>
/ |# q# b' w9 X1 h0 ~ until <condition> loop
& e* \, y- C* C8 }% g T <statement sequence2>;- O8 K; y- k" h9 e7 x0 x
end;. J2 a0 E7 P7 g* }4 Z2 q* Q8 D& Z+ T8 i
(2) while <condition> loop9 ?, w6 [: O4 Z4 i4 A' a
<statement sequence1>;
6 \( O+ @6 Z7 N# t( w! Q7 ` end;2 K3 u# e7 F$ [! `
(3) repeat 3 q9 B- T Z ^6 _
<statement sequence1>;. I" {) q0 ^* T! u. `
until <condition>;; A* n: p( f$ m; E
(4) for <condition> to <condition> loop, S# H$ J9 ?# {3 z1 M: `3 ]
<statement sequence1>;
! [( X" V$ y/ {0 i. x1 c7 a3 y6 ]6 d T next;9 e5 p [; \0 J8 f, F
3中断语句
$ z/ u- J2 Y2 r4 \! L waituntil <condition> prio <integer expression>;
( w" |! @/ C1 e# o- F$ H
$ c/ h6 X' T' s
; I, V z+ ^" g' h& E9 w0 p& x以上为常用的函数！0 i8 ^3 h; R4 b9 `
还有很多，如有需要我把资料发到你邮箱里
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