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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
7 P- z9 h* V7 a: O( M if <condition> then* }% W9 M9 p; c8 J1 M" [
<statement sequence1>;
0 m i6 J5 n5 A6 e3 A% L elseif <condition> then
4 I* x7 e& A% M <statement sequence2>;
! T0 \3 t! B- G+ N else
/ k- N+ N3 W; H8 [; _' ?0 y) t- T3 F& | <statement sequence3>;9 b. Q) O( d: G& a1 M
end;* `0 y! O6 R0 W. w- J+ i" q, u! `
如果分支比较多，用：
: Q7 W. E% f8 J& z3 C6 a" q inspect <expression>
) }5 q0 Q9 g2 U. T( w" j1 S: G+ S, h when <constant_list> then
# w+ \$ O( T0 V( H/ ?! i+ ]; `% R <statement sequence1>;# A& g$ Z0 {! r) v3 f& M$ O" ^+ a
when <constant_list> then
" E+ N% s4 _. G <statement sequence2>;
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else- H* O, y7 E, l; ? Q+ i
<statement sequence3>;
0 r9 ]0 i4 N* c$ F$ X% gend;
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2循环语句
: o5 X( b% r5 w O (1) from <statement sequence1>" }) }+ m# S% r) T; I
until <condition> loop
5 | O1 \0 n9 M+ V <statement sequence2>;3 o$ ?6 {5 Y5 a" s( Z( L" Y( V) w, `8 i8 F
end;
4 l& j/ t9 w) L% e0 {7 V (2) while <condition> loop
) B7 u# D8 j4 c <statement sequence1>;8 ^. T1 _1 V$ p7 b9 G: e1 ~: M
end;; v1 U$ q! h, F( Q
(3) repeat
" O4 w$ z0 v! _) Z. G8 J+ W& \. I <statement sequence1>;5 T% w r: n% B, {% H! h9 q& _
until <condition>;2 }. R+ r8 ?) \/ ~8 _
(4) for <condition> to <condition> loop1 }% |- J8 r: g5 ~/ i7 ?& U9 g8 x' n
<statement sequence1>; d& ?6 \) l& F: X
next;4 Q. i/ E4 Z T: _( F" }( R
3中断语句# k; r) k6 `/ m# k
waituntil <condition> prio <integer expression>;
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3 ^; I6 ~6 m% }, e3 O+ k以上为常用的函数！
+ n: k* A9 d- A( X9 ?- ~1 D9 }4 r还有很多，如有需要我把资料发到你邮箱里
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