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发表于 2012-11-13 08:48:12
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1判断语句7 r' ~4 r6 T5 W% T0 U
if <condition> then
; ]5 u) ]/ ]+ k& p <statement sequence1>;3 M, O$ c, q/ X0 s. U: S% V! P
elseif <condition> then( p9 R4 C4 D' ^) c4 t" J
<statement sequence2>;
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<statement sequence3>;; I* J9 G, }% i3 l+ R
end;: O8 s4 H5 P4 J* P( a$ L8 @
如果分支比较多，用：
/ {& N8 G% Z( h0 T; b. u# Z/ k: W inspect <expression>
, I. E. ?# ^" B' k+ r$ G& c) K- k: l when <constant_list> then
4 {: I# I5 Z* k. N5 y1 w <statement sequence1>;
% i2 e% @4 h& N# n" F when <constant_list> then5 W( C& z g1 `+ f+ K4 v6 Z
<statement sequence2>;
1 v3 n7 X7 a; z3 M" P1 m ...
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<statement sequence3>;# b: u' i; a7 {& j& K
end;
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2循环语句
+ Y5 N' K: [4 a, f (1) from <statement sequence1>
' R" z1 _8 R. {1 w until <condition> loop
0 c4 o( X$ b. t7 e4 z <statement sequence2>;
& A, X! F) W0 m4 ~! ] end;
7 y3 f4 ^6 U- J, O (2) while <condition> loop$ }" H9 Y: x# t( M" ]! g2 X8 R
<statement sequence1>;
0 \) ~) I# o' m end;! k$ o' |6 j5 H- }3 ?4 ?4 _
(3) repeat 6 `4 x+ Y+ j" P( O6 w# U
<statement sequence1>;* K" W: D1 Z4 J. Q' `' s+ v5 R6 ?
until <condition>;$ H B a; T R& k5 q7 C1 B
(4) for <condition> to <condition> loop
3 ]/ H L0 m! x% s <statement sequence1>;
. x! d/ j2 o. N- Y; | next;% I0 M k% S2 M7 V. H; k
3中断语句
- A6 M% n2 a0 _ waituntil <condition> prio <integer expression>;0 W8 j/ ^7 O2 c! g D {: q+ j
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以上为常用的函数！
) J8 _9 B+ B# |. b1 Z还有很多，如有需要我把资料发到你邮箱里 & l6 q: k- {4 q' r: o2 z3 H5 y
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