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发表于 2012-11-13 08:48:12
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1判断语句8 h3 R) C# F: L. s8 S" T
if <condition> then
9 Y: R% o# {- w$ N, f <statement sequence1>;
8 M6 v" ^7 m# F/ ^; M0 v* t2 f ~ elseif <condition> then' |2 e& l. g/ {2 I
<statement sequence2>;
- L# K& X5 w+ f& e/ K else
! d! ~9 L% I' `1 @4 Z <statement sequence3>;# |: c, t8 p; Q# Q, P
end;
[7 x8 k* b" R$ C2 o4 D如果分支比较多，用：
* X' H8 P( A8 X, I# E: u$ f inspect <expression>% I' W4 z- t; M7 g7 ]
when <constant_list> then. ~* ~9 q, Y: d6 ~ L' e
<statement sequence1>;
, p. _- c% }: ?9 ^ when <constant_list> then2 |6 r' K% W1 d5 V/ Z4 n* o- g
<statement sequence2>;
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else
, u8 M ^, S1 s3 S <statement sequence3>;; O" z* s ~$ W5 H6 ~, G {
end;7 X6 }8 m% A( v8 o$ U! S
) B+ k8 X1 m# |( K' X2循环语句
8 p2 _" b6 ~/ K0 z c& I" g (1) from <statement sequence1>0 m: [, r3 ` Y, c3 |; B$ r) d
until <condition> loop L+ J" F" F$ q: B
<statement sequence2>;; x" m, Z- `! p0 i2 H
end;
0 u0 u$ z3 X) p1 p/ | (2) while <condition> loop; V! q9 c; v2 j: `9 |- V$ S
<statement sequence1>;
! y0 |% J- S! H: t+ Z$ W end;3 V: V P6 H' {0 Y" @2 D# \7 _) C5 G
(3) repeat , m/ o, [( O0 Q( U( ^$ X1 y `2 J
<statement sequence1>;
$ E* y' }, Z1 z, x until <condition>;7 W+ R$ |6 W- o) h4 b, {' w+ J, p
(4) for <condition> to <condition> loop
/ ?3 \8 U B# X, }! t4 k. _2 p, ` U$ V <statement sequence1>;
/ H6 e9 r1 l! i0 \# Y next;; [+ S0 m' E4 t5 H/ O
3中断语句6 [: c$ h n5 b( Q
waituntil <condition> prio <integer expression>;
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8 S2 L: q( A! q0 n2 ?2 K0 y; q2 _以上为常用的函数！
) }! d7 a& V) D0 Q" Q" J; \还有很多，如有需要我把资料发到你邮箱里
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