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发表于 2012-11-13 08:48:12
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1判断语句5 p* ~+ Q0 C, G9 E& r4 b2 ]
if <condition> then
. y9 ~# \! s; K <statement sequence1>;
) v# F# c* t7 V1 o: I9 i3 K elseif <condition> then
9 \# |) x) V: _* A3 d/ n <statement sequence2>;
! \$ H: W$ w9 {: B% E0 M else
- U5 O2 c* B4 `4 h$ v% z4 v <statement sequence3>;
9 q8 H ?& K3 r0 l9 N& | end;
8 V9 M( M8 S O* I( b如果分支比较多，用：
3 G" a) V7 l+ S/ R6 @ inspect <expression>
+ t R* A# q$ m, w, m" M2 L when <constant_list> then7 b+ L8 R, E4 d: y
<statement sequence1>;
2 B( f1 P" t- m when <constant_list> then" Z$ C9 t3 h6 d( G$ p0 W T7 t
<statement sequence2>;7 M: X7 \" d1 j4 h* l* M
...
* I8 _8 W* D* g2 s: ] else
9 \2 m4 \9 i5 t <statement sequence3>;
6 }7 @( E& {% r" Q* ~& Iend;% q9 w, [* Z" J& G
2 m( R5 ~8 |- K6 j P) U2循环语句: Z4 s; P+ {, f! ?2 J
(1) from <statement sequence1>
6 e$ I+ I, m4 D$ O4 P! V# l- J until <condition> loop
d+ L* [' }; j M3 J6 R <statement sequence2>;+ P8 a. b/ _. ]( h4 t
end;% C# D* B% |* U1 q
(2) while <condition> loop- n+ o& O7 C6 r5 |0 _. P
<statement sequence1>;
; r6 Z- i+ a+ W4 d4 e7 o end;/ Y! g$ k7 J( `4 L" L' \
(3) repeat 4 i2 |, q8 D" V( ]0 U
<statement sequence1>;- C( g0 d, O( z8 ~
until <condition>;
1 p9 x P+ @, k" m% j& D/ Z8 A (4) for <condition> to <condition> loop
+ L a, ^0 u) |7 J8 m <statement sequence1>;
3 L2 O/ t+ h. ~1 o next;
8 \0 I' f+ z& Z4 b. ]1 P3中断语句
" K H$ q4 h& ~1 ~: E/ m waituntil <condition> prio <integer expression>;. z6 k; k9 s6 V/ P% |0 C9 h1 S
0 B) G3 A) S* b8 K( m5 s
$ |& O" @: n9 j2 N. x8 m( G以上为常用的函数！
! {1 V2 B; j. H1 T1 \/ W7 ]还有很多，如有需要我把资料发到你邮箱里
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