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发表于 2012-11-13 08:48:12
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1判断语句2 r$ |5 M7 K: t g! ~- p7 O& n( ?2 D. X
if <condition> then: j) l0 D# m' q% L
<statement sequence1>;
L% W1 f" \+ m$ O+ B- T. H1 a elseif <condition> then
- Z4 P8 M) Q' u+ Z <statement sequence2>;
6 p1 ]. ]. D6 r- ^; `7 v else
+ _5 ?$ w* u! x. n+ q Q$ v7 L <statement sequence3>;7 D( V# f P0 ^
end;
5 f5 k# {( ?" c2 q5 ]3 m) T$ Y& a如果分支比较多，用：
& W& Q% u5 d7 u7 }+ I inspect <expression>7 g( p( ], |$ O! X5 E( k
when <constant_list> then
7 H& t$ u1 n& R- O" C; X <statement sequence1>;% A2 Y2 G+ e, D# j$ A( W
when <constant_list> then- V& u) [& v) @1 U5 F8 h4 m
<statement sequence2>;
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else
0 H+ Z \6 l0 z3 b! A* T <statement sequence3>;
+ J% o$ e; z9 C x5 I& Dend;
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2循环语句
6 d, L! Y3 j* ?" g8 l (1) from <statement sequence1> ^/ ?" Q3 P- C* K- c8 t6 d; m
until <condition> loop4 @% l1 {+ p" Y' M$ V
<statement sequence2>;
6 d6 V2 A1 f' |* w) t% D end;7 O) X2 Q; C* v; ]1 o( u S
(2) while <condition> loop2 u- K1 v6 Y; h( W4 T( V1 ?
<statement sequence1>;
0 U2 H8 k; z) G* l end;
2 H J9 `2 }! w# [3 N. \# ?( J (3) repeat ! y1 l% Z! x* f1 E* a
<statement sequence1>;
/ s' m, G% {5 h" N# I until <condition>;7 K# W) |# Q! F( @; O' S
(4) for <condition> to <condition> loop) W W3 N8 e$ Z0 K
<statement sequence1>;- W$ T# g5 C C! S! U( F
next;& {# j, x5 a& g0 _% ~' A
3中断语句. n3 f0 {7 w! {! L, a' ^9 F
waituntil <condition> prio <integer expression>;+ L. |9 t' W* J6 B! E
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以上为常用的函数！
: W l( C- o4 A2 v* \3 c还有很多，如有需要我把资料发到你邮箱里
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