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发表于 2012-11-13 08:48:12
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1判断语句
8 @. Y2 M9 v: z; ^. ^, Z* I& p if <condition> then
( p1 I. n& D) h; |1 C+ |/ A <statement sequence1>;7 ?. s) t( p4 J
elseif <condition> then
' R' \; l: E$ y; S <statement sequence2>;& |2 {% I. G2 a$ r
else % b7 o$ h+ w9 G# e; d
<statement sequence3>;
0 q. r" \% w5 o8 T, ^$ c end;
: ?5 n% k/ d7 j+ J如果分支比较多，用：
. l! f* ]" R& E5 Y inspect <expression>+ B# U# L! m p
when <constant_list> then" n: C. I: n* `( Q5 J
<statement sequence1>;: F9 m. g/ |( g/ R2 x: E
when <constant_list> then
- G# }; v$ h# y" h <statement sequence2>;. I7 |$ f" o4 A: g; s. K- l' }
...4 d5 I8 i" Z! S: q
else/ j0 X7 g% Q& J; W! U" a0 v
<statement sequence3>;
) [! X) ^# k( {end;
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3 D( G. U5 @% w' n; U6 g4 `2循环语句& J: Z; U1 ?7 r( t. G6 G* V2 @
(1) from <statement sequence1>7 w5 N; V$ {9 y1 b: A
until <condition> loop
0 N: ?4 I! T. I3 O' O <statement sequence2>;" i+ y$ z; a5 @0 L
end;
7 J/ b9 S. Z+ M/ P) r) i2 `' r (2) while <condition> loop. L" `4 f9 E A
<statement sequence1>;! |% z# }. T; w/ f8 T! a1 w
end;
+ X2 r$ R& l/ b (3) repeat 4 S/ \1 ^) N/ D
<statement sequence1>;
% @5 x4 u H a: `3 F until <condition>;
! w/ t8 T- S0 ?, z$ r (4) for <condition> to <condition> loop
: J' S) K2 }6 X. K/ D/ e( ^! q7 C <statement sequence1>;
- G. [4 O& A6 v next;( r# d" J4 I9 P5 _! [1 R
3中断语句
5 v4 S t6 c3 i2 a& C1 n1 v waituntil <condition> prio <integer expression>;4 h- ]9 y+ D, R2 K$ K
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以上为常用的函数！
5 Q6 j& V$ f0 T7 w7 G- Q还有很多，如有需要我把资料发到你邮箱里 ) G7 j- @& R5 k5 T9 S# ]# n: }
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