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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
, [4 h+ h9 D1 k, [* o1 H if <condition> then% V0 c/ q6 p. s5 I: j6 [
<statement sequence1>;/ l4 y) x: X2 }6 ]0 Y' s
elseif <condition> then8 o+ |: K" S+ ~' x" B
<statement sequence2>;
3 W2 I& x6 G& Y2 D else
! Q! I# W3 q+ W1 |9 f. \3 E4 T <statement sequence3>;) Y) o( V) B: e) m0 ]
end;
5 O* ~+ H; v+ e8 e; V% Y& j5 C- M: w如果分支比较多，用：
2 t- V+ H9 |$ d( T& r inspect <expression>
( `+ f5 m; R4 h0 X [4 w: _ when <constant_list> then
6 }: A) V6 x7 ^ <statement sequence1>;' }8 Q& m# l1 ?. b* x$ C
when <constant_list> then
; n9 [9 {# C! l' c <statement sequence2>;$ C$ t- K0 |1 y4 N
...
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<statement sequence3>; e8 r l7 h" z2 H" v3 R1 f, }
end;4 c3 B, U0 C6 Z+ T
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2循环语句
; J; L0 f6 X, k: N! J/ ]9 Q8 B+ t (1) from <statement sequence1>( q9 k/ G4 Z$ m0 {, I5 F
until <condition> loop
\" V4 ~* O b' ^$ ? <statement sequence2>;
$ B8 C# ~* c+ ]# t2 D& ] N end;
7 D, d* v( q+ {* f( z% [ (2) while <condition> loop* M, I$ o6 F9 V% `" ^6 F
<statement sequence1>;
" G/ U0 E, d& F7 W5 I1 f* l end;+ t' \. c8 f. h) r+ y
(3) repeat $ F% x" S; q: b
<statement sequence1>;8 [; I1 H3 X1 ^% @. v
until <condition>;
( N. C9 _. U# T9 H( |. E (4) for <condition> to <condition> loop
2 R8 N: T8 B* _. T; a+ x& z) D <statement sequence1>;
1 p; n% l" D$ [" A, v9 D# m3 t0 r Y$ ?; J next;7 n1 c: L, Z1 j8 }
3中断语句
+ B5 @# |4 n% x7 B) C! ] waituntil <condition> prio <integer expression>;+ R! x# h7 G& c( g H/ f/ e
5 f9 g5 j5 w/ J9 c. v6 j7 f) l6 x
% J. C: M& L5 q% ^9 X F) k- R以上为常用的函数！! |' E- F4 l2 |9 M" f4 q3 g9 |
还有很多，如有需要我把资料发到你邮箱里
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