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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
8 b# b$ L( t7 H3 J- n: O8 k if <condition> then
) E! R [0 z$ I! s9 f6 b5 E' ^) q <statement sequence1>;
5 K6 z0 I' W( G# J! h elseif <condition> then% X2 G& A' L2 X, y( P* k# l
<statement sequence2>;1 O/ e8 B, p+ @1 R$ L& b/ P) d
else : Z) t0 [9 C4 d5 \4 `( j" [; t7 ]
<statement sequence3>;! c! ?3 y; G3 s8 F
end;. @: _# [4 X" w; T
如果分支比较多,用: O7 A+ @- o0 y; d; d# D( u. Z
inspect <expression>
# w5 c' [; x' h8 p when <constant_list> then
5 ~0 L7 [( f" I/ c' {! k4 ]* [ <statement sequence1>;$ i, t9 a& G* n
when <constant_list> then
% }* c1 s% n6 l2 K) [. } <statement sequence2>;/ @4 K. x" F2 R$ ~4 [
...
3 u2 r2 L+ L$ A+ t& c o( G- ` else* q2 R2 Q9 I3 V% j5 A( j- V# x
<statement sequence3>;
6 C- d4 M$ H! n6 x& Y/ p# Jend;
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' i* E1 D# F V) W& u1 B# O: v2循环语句
) j2 G% p3 ?0 j (1) from <statement sequence1>6 G f1 P# v$ b* Z0 W2 t9 B
until <condition> loop& u2 d! U, q: c+ d! u/ q; p
<statement sequence2>;; v. j! U! F. r4 r3 F
end;
0 @4 m6 X# l; ?& G. S$ }' C$ b (2) while <condition> loop
! U5 k0 r& l' I <statement sequence1>;
0 d# D2 f4 L! Y: P0 k end;" S# m& d. `/ t: ], T
(3) repeat O! g9 \! |; e( r5 N4 a* ] g0 T- k: }
<statement sequence1>;" y( r8 N4 }2 i7 `( Z' n
until <condition>;
3 @, p) O) D7 K( s (4) for <condition> to <condition> loop% P& q' s* |! A" s6 z! [/ i8 j# Z6 d
<statement sequence1>;
: Q" R2 _ @$ e! I4 C next;' O8 k, |1 E0 ]5 L! R
3中断语句: O9 n: @' |8 R D" a" T P
waituntil <condition> prio <integer expression>;
3 s, a. g9 M: E4 u
! e/ ]! G7 y! l* G. B9 Z# Y
4 A1 ]! \ U/ u, A0 a' H0 G$ q以上为常用的函数!* k9 [, y, k1 m% k) b
还有很多,如有需要我把资料发到你邮箱里
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4 I) L/ U1 w2 X6 L) [1 J3 @; P! k$ g& \
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1 W: N; P# Z ~/ I$ g- R& d3 m) R3 g3 X7 x* z: i
8 @9 H$ V' x2 }2 {* X% l- d/ p
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6 D8 Z/ ~5 {# f, R
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