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发表于 2012-11-13 08:48:12
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1判断语句 L" ], J4 C' a- i
if <condition> then
( J+ _. `6 T9 N. u" t8 f5 Q <statement sequence1>;
8 R- u8 B2 k# b elseif <condition> then- `) P0 `7 ?" m! T" u0 V Y: `
<statement sequence2>;
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<statement sequence3>;& K1 v# b2 \5 i0 N) y3 L
end;, ?# m# e8 Z0 S3 \
如果分支比较多，用：( M$ B. z) |) d) y( z( j4 \
inspect <expression>+ d3 L! h% a7 Q' C
when <constant_list> then0 F5 p \2 g' {) u: S
<statement sequence1>;
, |5 ~9 _0 L0 p6 n9 Y9 i( y) n4 \ when <constant_list> then
: q- ^1 C* k( P( R <statement sequence2>;
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else# L" J5 S1 n& {4 J
<statement sequence3>;: H& p/ Q/ d- E$ n
end;
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7 [2 D) A$ Q, t4 }1 @2循环语句
9 b4 @: `" b- A7 Z; O% Y7 O- F (1) from <statement sequence1>0 m4 d4 G3 b- k+ c0 K3 Y3 z
until <condition> loop
+ w! S8 S% l R2 m; q, T5 m. s <statement sequence2>;
; W8 D2 @& n! T( |. O$ o end;- q5 y# K2 v2 y. \, U. u/ ^1 h
(2) while <condition> loop8 G( Z: N5 X. M0 p* v4 i Q
<statement sequence1>;
& M/ r: o3 m- M end;
/ ^9 K! M" f6 [# N, E (3) repeat 2 r( i% @- x# |* v' s( t
<statement sequence1>;
9 I" q u% _& g0 q: Z6 h until <condition>;
/ H& L0 K# A5 E% T8 S (4) for <condition> to <condition> loop
$ q" F( b. g$ A* ^5 C <statement sequence1>;
! H) o9 M7 b* m C1 }* t' y next;$ J r& j- q) d+ q8 R1 ~! m9 `. j
3中断语句
) u! x, H; Q$ p' g: ] waituntil <condition> prio <integer expression>;3 x" o. e( L+ s5 b- I
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: n. f) _- E8 R% ]7 y8 r( u2 \以上为常用的函数！9 d ]0 S: l$ O* t6 Q
还有很多，如有需要我把资料发到你邮箱里 5 v4 u" ]/ k0 ]/ ~2 f
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