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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
9 m; L! E: w5 i, C9 ^" ? if <condition> then( m) T% D) a9 }' T4 t
<statement sequence1>;2 s* D% l; W% h6 q5 p6 V
elseif <condition> then
_5 ~8 t9 W* G <statement sequence2>;
( \* ]& B, n& _' z \ U/ u& q2 l else : p" @0 i, T# h9 o* @
<statement sequence3>;- T* e3 X8 Q0 k2 X+ g* r
end;; E! F G* r7 _( T* g) z( i; c T
如果分支比较多,用:. n/ f& j- F k2 V$ [3 N
inspect <expression>
. [- h# t1 z* t: c4 p4 O when <constant_list> then
. g* J3 d. ~6 s6 H1 ]1 e& v) H <statement sequence1>;) V1 ~0 F) {' K$ a# Q4 F. G
when <constant_list> then1 o7 a0 B6 x( N( ?6 p' K
<statement sequence2>;1 h' s7 b) @# s9 i
...2 `5 l) M# X% @8 S$ T) _+ A5 u
else! X# Y) x* ^* t
<statement sequence3>;
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* d4 p) F9 ]% l r2循环语句
) e( y2 \' O6 P) V (1) from <statement sequence1>
3 A8 o3 g& U# j: l until <condition> loop
# Z4 n6 x n V# c <statement sequence2>;) S D, |1 ~1 h& A2 _! a
end;5 S4 N; H8 N# h f5 h6 q, G
(2) while <condition> loop
( _4 k. M; D# B% W4 r" Y <statement sequence1>;4 v) j% [2 j& ?1 r, L8 h8 `1 ^' o
end;
( ]( S& R6 q ?0 N (3) repeat
* Z; M1 f5 d2 U& B: a <statement sequence1>;
# O) g9 g- {# s* O# B! r3 I+ x) \ until <condition>;
z+ R3 p5 `+ x* t/ |0 s (4) for <condition> to <condition> loop
& N4 g4 J+ P' r <statement sequence1>;$ |8 w4 P/ d! k& z2 \& H
next;9 _- F) h$ `" [- B" p" v% a
3中断语句# R) { S. x3 h; Q; a
waituntil <condition> prio <integer expression>;2 e% w# Y# V6 t5 p8 ?, d' F
" A% E( {( y/ Q$ Z/ @
, P% H: I S6 x& J9 r以上为常用的函数!' z) H" q( G3 b8 C1 S
还有很多,如有需要我把资料发到你邮箱里
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