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发表于 2012-11-13 08:48:12
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1判断语句! r* x# }1 ]6 p6 s& U
if <condition> then
. Z: S3 \/ e6 ~# z <statement sequence1>;3 v/ p5 B: k3 s5 q7 ?2 O9 u! z' F
elseif <condition> then- R3 M$ x: h( A5 l& k
<statement sequence2>;; |: \" y+ s8 k6 K0 I
else $ x; f) n& h7 o, w5 R8 _/ n8 d
<statement sequence3>; f1 J0 |$ {6 V% I
end;
& ?& S# F* ^7 y如果分支比较多，用：+ Z* d F) o& Q: |
inspect <expression>% }# n S" j% @) F7 w
when <constant_list> then: Q- \1 @4 h3 A5 Z
<statement sequence1>;6 W/ C( |# f! D0 ]
when <constant_list> then
# E% K9 g% ]: U, P6 E <statement sequence2>;
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else
( t1 A* [+ P K! t& \0 A: ]( R \ <statement sequence3>;9 v. ~- q& V0 o, n: j5 R, U
end;0 |8 q$ o- t$ C9 \8 E! X% J
' x5 z l; R5 C/ d2循环语句
/ b6 ]" m8 o6 l8 I5 Y (1) from <statement sequence1>( z9 ^; g7 p, E- c' ^/ s
until <condition> loop2 V- {4 k7 J* M! F; T
<statement sequence2>;
( q/ h6 D4 f0 k' r end;) q ~3 l1 r. t1 m/ j
(2) while <condition> loop
/ C4 G& m d/ \ ?0 D% ^! [- D" a9 | <statement sequence1>;. C* t8 Q' n+ @8 X# r
end;; D0 c# H5 Y- x) C5 T8 F+ U
(3) repeat
+ i9 O, O0 M$ X7 A9 { <statement sequence1>;
* K. b) `+ {. h6 @' o until <condition>;8 Y/ i/ r7 P+ F( ~' A/ u3 C
(4) for <condition> to <condition> loop
% n' e. ~1 o. \! u <statement sequence1>;
+ Q1 T. K. T N3 I& M4 |7 g5 u1 J next;0 c! d7 l6 E4 X0 [
3中断语句
6 l7 p) t- |2 G, `, K( t# {4 _ waituntil <condition> prio <integer expression>;. Q* K* t. h- i/ [
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以上为常用的函数！
$ d- U, w+ J/ k9 h2 N4 V; ]1 T还有很多，如有需要我把资料发到你邮箱里 : j; Z% `9 S: F5 Z6 h; v6 h% `& g- z
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