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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
7 n& d% [0 D3 X' ]- G if <condition> then( r' F( Y3 j' o# L$ s( x
<statement sequence1>;
( @8 c- g1 |0 b( |. E3 h elseif <condition> then
) X0 x/ H; B) w/ Q, o! j2 I. X <statement sequence2>;
2 A9 b: }8 e' C$ x0 k else
3 q, A+ D/ W' b6 p( i% J5 y, ~ <statement sequence3>;
+ @2 B9 ~) z1 J* G9 d; |, h end;0 W% z) n6 a( X; \
如果分支比较多，用：
3 s. e& Z9 g6 u& d. D4 | inspect <expression>& S# `* M1 b& m& X
when <constant_list> then
2 |& W- t, Q! Y! o4 V <statement sequence1>;" {& q- g7 V1 ]4 ^
when <constant_list> then5 f3 B& U( s! C7 N
<statement sequence2>;
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else
; ^% W- a3 f6 u( }8 E6 Z2 @/ O <statement sequence3>;
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2循环语句; v/ _; ^" ]- ^
(1) from <statement sequence1>- J5 X2 J2 n0 y
until <condition> loop0 U. v! g5 C2 ]2 Z
<statement sequence2>; i$ W/ G4 {* ]* h
end;7 R9 V4 ^! Z7 ]1 ?4 a
(2) while <condition> loop4 K9 P' h0 }/ x1 _! L
<statement sequence1>;! H' p+ s8 d8 z; l8 K- y6 ~$ x
end;
7 i5 c9 n+ _% ~ s" R- U: {; \ (3) repeat % g& g g, Y1 w! B o- l- a
<statement sequence1>;/ K& q9 w3 R+ l/ \: G
until <condition>;) F! F- e/ E7 V' i) m/ p$ P
(4) for <condition> to <condition> loop4 g+ X8 }0 c, d5 J# W* E9 v5 p
<statement sequence1>;
, P' C+ Q+ C! h3 I next;
) x: K( r. m* k3中断语句
; n2 W7 Y3 O% H" b% } waituntil <condition> prio <integer expression>;
/ `# S( j" j4 o0 s, j8 ~/ l- z9 _) M& C5 |% c$ I& F$ \% \
- i* a6 i7 i/ |% }以上为常用的函数！
, H! k8 V/ t b8 l! ?3 t还有很多，如有需要我把资料发到你邮箱里 9 I) ?7 X5 E6 O4 F6 y" V
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