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发表于 2012-11-13 08:48:12
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1判断语句6 x9 _2 x0 ~; b0 }
if <condition> then
% x( c; Z" e! n$ @ <statement sequence1>;8 |7 O9 r7 G3 |1 F P r0 @
elseif <condition> then/ x8 z- f2 X4 {8 o. k5 k& Y
<statement sequence2>;
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<statement sequence3>;
7 T4 S# g0 n* l m( V9 } |7 x, | end;3 B) a1 T/ I, n$ t/ M6 C
如果分支比较多,用:8 y% F& @9 D& E m) D9 a( e
inspect <expression>
; W' N# x' n+ I7 d; i* K& X! P when <constant_list> then
' a0 j# j# s: K. {; |6 u <statement sequence1>;
: A# ?' |1 x! y8 }- D$ A! G' m. f when <constant_list> then
& f/ R& R; Z0 k) P) D! H3 ] <statement sequence2>;
) m1 x7 x* i; x. ~2 K; a ...
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<statement sequence3>;6 H9 W6 r4 R4 I( T: V- x z0 y3 O
end;$ l) ~1 N9 Z ?, S
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2循环语句) H3 q# T* m R: `8 L$ u% \* R8 \$ m
(1) from <statement sequence1>& ]8 r* E9 D3 y7 o
until <condition> loop
& J' `' [' l2 Y/ @0 r' \; p <statement sequence2>;6 S& u6 k8 s3 r% |, e9 c
end;
$ e' Z+ w3 h, h% Q+ _: K (2) while <condition> loop- N% U C: P( y1 Y8 e
<statement sequence1>;
, O" ]8 v' [$ D: m$ j' S end;
; a: t8 O' }$ C0 S8 G% Y (3) repeat
: N* I! s) z$ m <statement sequence1>;
6 S. s$ S0 q5 w2 E0 t until <condition>;
7 E2 i/ n3 i& C( B (4) for <condition> to <condition> loop# v* R: U5 i0 L0 o. @! b+ B
<statement sequence1>;
6 S% ?6 P6 K8 C9 W4 c. w) t next;
2 G% g/ q u# G4 C: L: R. J3中断语句
+ T$ I @" g6 a# y2 u waituntil <condition> prio <integer expression>;4 D6 f# h9 G6 n% }8 a9 a% z
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& d6 \+ e1 }8 D0 p- Q以上为常用的函数!- W g+ s. X" v( F7 ?+ s
还有很多,如有需要我把资料发到你邮箱里 t0 q7 W* H J3 l: U- S
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