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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
( P+ B9 L! {& v |1 I( \: J, U! [ if <condition> then3 l+ d/ H) S# W$ q7 x) A. p1 y# K
<statement sequence1>;
( |- X# a" L6 D. L! P& ~, a) H elseif <condition> then
# |' ^ J1 U9 |+ x5 u* n: ] <statement sequence2>;
q1 R* h2 J5 I$ ]3 B9 ]. o6 k else
. g" j& k/ `( C* B9 i/ A <statement sequence3>;
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如果分支比较多,用:
; f0 [- M+ J P5 I) s7 P7 X inspect <expression>6 M1 r$ M3 y/ w; F. |
when <constant_list> then" r, O# {5 r! |: {$ C: T! Z4 g3 E
<statement sequence1>;
* a& G0 @; T8 Y/ W: o3 n+ k& E when <constant_list> then* Z; |3 J- P1 H/ R" l! H
<statement sequence2>;- O5 ?& R* V" A0 d. v$ W# S
...
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<statement sequence3>;
9 O7 R2 ~' f& Mend;
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2循环语句/ X& g; @' }$ P2 s+ {
(1) from <statement sequence1>
( r/ f0 F; t$ O9 ~- N5 k until <condition> loop& x8 N4 X3 s; F
<statement sequence2>;
" x2 f4 A: N @. O. Y end;/ m! [# |4 {5 Q# i
(2) while <condition> loop
3 j& x" P# e* N0 m% ` <statement sequence1>;' t$ I' h+ `1 t% ]% A
end;# f- L: Z( W! ]
(3) repeat : s& J4 c% V/ H: V7 W
<statement sequence1>;
# b9 \" S7 M1 b7 f1 M until <condition>;
% J% e2 \& X; S7 Z2 t/ ?8 E5 G (4) for <condition> to <condition> loop
/ S! ~( \2 {# ^! H l: E1 k <statement sequence1>;$ `; F1 s5 O. J" k
next;! I; m+ m5 |# p' [$ }6 H0 \
3中断语句
( e; F* U/ [! A# Y. A, m7 f# b$ z waituntil <condition> prio <integer expression>;
$ T2 Z9 E# c) k t9 C" S. K4 d% x
/ Z2 [2 w# c# O$ N/ C: z以上为常用的函数!+ i6 T) k9 Z+ r! Z7 C# }5 y/ V
还有很多,如有需要我把资料发到你邮箱里
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