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发表于 2012-11-13 08:48:12
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1判断语句7 g w4 T/ j3 b" J& | m
if <condition> then* _, ~4 n( c/ Q
<statement sequence1>;/ Y. `, O5 |3 v& Q0 [
elseif <condition> then
# J" N* v* g1 A8 Z <statement sequence2>;
& V; \+ y+ o( v& V( a) o& R l else
0 ]' \0 ]6 T ]- [% Q6 j$ M <statement sequence3>;) Z+ w: s) I3 q" l6 Q3 c% S( N
end;0 g8 P: w* g' f* a! [
如果分支比较多，用：
) {$ {! }+ q7 ^4 u inspect <expression>) R+ e! [1 \ W/ c3 F- _8 w, Q
when <constant_list> then
/ |/ W) ~% a: f6 \2 ^ <statement sequence1>;
, t! c% }0 m3 s& O' Z, n% J when <constant_list> then7 B. f$ {+ H# O8 V4 S
<statement sequence2>;
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<statement sequence3>;
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# G, a. Q8 O0 O& ?$ C2循环语句' {) x2 c0 r9 o1 N L$ E, T
(1) from <statement sequence1>9 { [. r4 m4 P+ z9 R
until <condition> loop
( u) r' x! B1 q5 ? <statement sequence2>;5 t, G: L% C$ j8 a6 y! h
end;" p' _+ r* Y( Z+ q q$ |
(2) while <condition> loop& T' a& W) x. _7 |
<statement sequence1>;# n8 \" T# `$ h( E. q
end;
; c6 o! J7 J$ C0 @! i (3) repeat
: j# T/ X0 i1 J- B+ Z <statement sequence1>;
r: ~' u. y8 N5 F until <condition>;9 ]' ]! u/ \7 ~' V: D
(4) for <condition> to <condition> loop
- U8 F4 S; t% y( k <statement sequence1>;' a N6 {+ T- A
next;7 E7 k. `; Z+ e6 A; k% y
3中断语句
' B: h6 Y$ w* _# L2 |' s. p waituntil <condition> prio <integer expression>;4 Y2 R/ {+ X" B& X
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以上为常用的函数！
: g" f1 F# z1 j还有很多，如有需要我把资料发到你邮箱里 % A$ i: `* V& m+ R
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