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发表于 2012-11-13 08:48:12
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1判断语句
1 C6 u# R9 h7 @' { Q( |( U if <condition> then
# L6 Y/ |) N, D1 `# L- c! r <statement sequence1>;
9 z$ B) ?5 e7 @ elseif <condition> then2 e, r1 H: W5 q, X
<statement sequence2>;
4 r/ r3 p8 |; S else
6 \$ n+ m+ C* ^( S: x <statement sequence3>;* G3 ]4 f* z# b& {
end;4 M1 F8 }5 x. Q- |& {$ H( W5 f; C
如果分支比较多，用：
. H9 v9 y% F3 u: F& N inspect <expression>
4 l r8 _- V2 @+ K/ n when <constant_list> then
& _. X; e+ U+ |$ u <statement sequence1>;
; v p# B& B2 _5 c) i- T" J when <constant_list> then
) {0 Q+ l6 ?: N6 l9 N; Y# ` <statement sequence2>;
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else4 @, S, m- d# _! B7 d! M3 Z
<statement sequence3>;2 Y3 K. o4 Q. X
end;
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2循环语句
( j: j; Z Z" j( |' r+ k0 t9 Y5 _ (1) from <statement sequence1>; J) j5 v2 j2 e
until <condition> loop
7 k0 p; S, @4 ^1 D* ` <statement sequence2>;
$ b% Y( z6 j7 H" g9 [+ S$ L end;
6 }% e. N& C4 R0 z (2) while <condition> loop
" { s: L5 N1 ?1 L8 Q7 S <statement sequence1>;
# y% r' c3 ^! \9 X9 e end;
) U$ l) T9 i' C0 z$ t+ T( W (3) repeat ) X) d/ T% \* L. B
<statement sequence1>;
; Z( R3 U* U) j5 Y: o until <condition>;% @) s& s& a0 O: A/ Y
(4) for <condition> to <condition> loop
+ l$ o/ j, U+ T# d% C9 \/ L <statement sequence1>; [8 S9 n0 b2 E& A7 @8 Y& }: H2 V: A
next;
1 y* P* i) t' B3中断语句 h/ ^! B5 n% P; |2 c
waituntil <condition> prio <integer expression>;
0 _+ u3 ^+ R( n' l5 a; @
. z* N7 C h! i; k2 `1 a) }! x
以上为常用的函数！
& C9 k5 B5 a8 u2 U1 ~" u) `还有很多，如有需要我把资料发到你邮箱里
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