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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
; g1 \' T( H( V2 S if <condition> then' S; A; x: K% p2 n2 R1 z; H
<statement sequence1>;
! \7 B; X' G9 ^2 q; } elseif <condition> then
, j8 f* D/ Q7 F H* Q+ e2 [ <statement sequence2>;
( ^ C* Q7 f, |* H1 h else
0 D- Q$ B& r# h# w% z <statement sequence3>;
, x5 k s: b' R: R' H end;
- G1 ^5 A2 O7 n- G* \9 W如果分支比较多，用：
6 P; N5 z- F- j7 Z2 r4 X inspect <expression>
1 z3 U: ^" I9 z when <constant_list> then
^8 j! u( m9 Y g8 v <statement sequence1>;
! s8 n( F0 _; ^% ?! u. |, g when <constant_list> then2 V% F/ s$ [8 L4 l$ L, `
<statement sequence2>;
4 c" F9 n% M$ F' o5 A. R6 i5 d ...
3 K) a& [! t/ w& {) l2 G9 z else- E$ U. R( _% E; I: ^
<statement sequence3>;' x2 z* C- E! G1 ~ e: K" m- d
end;# x- {- E! _5 } _
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2循环语句" M. B+ c# _$ Z: p' t
(1) from <statement sequence1>* L8 u9 S& v$ c% M9 O- ?: ^
until <condition> loop
! R" _4 V6 o0 N9 s/ o <statement sequence2>;
5 P+ s/ d1 o; ~: g v$ w( t end;1 r# h/ [$ t5 a( |
(2) while <condition> loop( q" {, t9 [5 I! C. T% _$ b3 Y
<statement sequence1>;
% J8 N1 L' d8 s; s, l end;4 L' l9 R1 n6 Z8 R- V0 S% \
(3) repeat
6 J; q/ i8 k* u <statement sequence1>;
7 G' d" u) T: |" r! N8 x/ w until <condition>;( b4 J `; h( c5 Y" ~
(4) for <condition> to <condition> loop1 L% {- `: p0 {! T
<statement sequence1>;
) f$ z; Y+ _( l; S next;3 K$ b$ v+ Z! H, i1 l" X5 T
3中断语句
5 R1 V7 ]: _+ h3 q2 q waituntil <condition> prio <integer expression>;
+ S; S9 ^# g7 B+ i: Q# @, b* _. ~0 [
- L2 |. G6 o5 j* l- O# G' a
+ p2 Y8 y5 |8 }& o+ _以上为常用的函数！
+ w+ H* p, e% l0 G还有很多，如有需要我把资料发到你邮箱里 , u& k; W2 r- P* \* s2 m* n
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