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发表于 2012-11-13 08:48:12
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1判断语句
- v" v" x2 v2 C+ t; `! {2 { if <condition> then9 I; ]- L% ~6 X6 V( T- ~
<statement sequence1>;$ W: `5 x8 D5 S: `; ?6 C7 `" d9 Q3 M
elseif <condition> then
/ ^. ^5 H. C& n# s- a9 i <statement sequence2>;
* s9 L) R" W" e9 d; t else
+ L( {0 O4 e' P$ z <statement sequence3>;
0 L2 d! N8 |" A end;. N3 l) m8 h# V7 W
如果分支比较多，用：; [" ^7 C F& ]! d' g
inspect <expression>& x' K; i( J! e- Y
when <constant_list> then
' _2 J* y! s& y0 u# g" G <statement sequence1>;7 y0 U# |6 l" `6 P. ?
when <constant_list> then1 @' R+ E8 |+ \/ r& a
<statement sequence2>;1 M# T- t$ G+ b# R: \& t
...1 ~. Y2 B0 \/ _) g
else
8 }/ D' h! H' k0 G# D4 D$ J <statement sequence3>;
+ ]$ v$ @! s& j: m# Uend;) I3 ]: C" P a6 J! p$ d. f: X$ x8 X4 w/ P
8 K/ P3 D& R7 ]2 u9 n0 T2循环语句
1 G: J. U) o, F% h3 J/ {8 x0 G (1) from <statement sequence1>" o3 ?! p5 U" z0 q' N
until <condition> loop
0 b& g# h7 }. _9 L* x; L# K <statement sequence2>;
, p$ t6 g1 w {" F' x0 R end;
$ x6 B- F. D* s( I (2) while <condition> loop
( t; p1 p! Z8 G. M5 J <statement sequence1>;
# r( U. c& q* B( Z end;& r" z( x ]8 a/ w
(3) repeat - J4 L& S# J+ {0 _) `
<statement sequence1>;9 _/ Z4 D5 |2 i# O3 B" n) J
until <condition>;; f7 K" k5 I5 Q! T
(4) for <condition> to <condition> loop
( n4 v- W$ u' }5 o3 ^ <statement sequence1>;5 m1 b) v e+ i# T
next;
$ t( P2 R! L$ d$ r1 q( I4 B3中断语句2 ?* W5 h6 Q* e6 R
waituntil <condition> prio <integer expression>;% o8 d" T$ P: X( ?1 |9 F! q9 R
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8 e6 H' z' f$ }( N以上为常用的函数！" v, b" A6 S2 w. \* z3 d" t1 G
还有很多，如有需要我把资料发到你邮箱里 9 N5 O& \0 s1 M8 I! d- p# F
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