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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
$ y; h5 \. m! G1 N1 K9 g; R/ t5 j* t: j! K if <condition> then
8 P6 `' B* d8 H# }+ A2 { l' ~3 Y <statement sequence1>;
# L; s+ u- q* R) P; w3 v elseif <condition> then
! G+ \& ^# S% F2 }/ K& d) u <statement sequence2>;
. x" i& ~4 M, O0 I0 I h1 i else . K, p( S% y i0 h
<statement sequence3>;( E! `7 J$ V6 w& r1 R
end;: z2 N% P& i- M# E1 t" c
如果分支比较多，用：
9 U/ e: j7 D! y: K- u inspect <expression>
" s4 c2 [4 b8 i when <constant_list> then
& Y8 K* A' r: J. _ <statement sequence1>;2 Q! }% L3 `+ w5 G1 D$ s
when <constant_list> then
1 I3 o6 w# k7 } p <statement sequence2>;3 p! a( l5 X0 C
...2 _4 e8 Q8 i. O
else
8 c+ X0 x. ^8 _+ c% _ <statement sequence3>;7 u I5 F$ }6 ^. ?$ R: }& @
end;
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! I4 Z9 j W5 w- D+ \3 B2循环语句+ T0 z) M" Z/ d% {
(1) from <statement sequence1>+ K8 H. ` d4 V. T2 U* o4 e
until <condition> loop
- z1 c( s( A1 f) R5 U <statement sequence2>;
+ l$ Q, ?. @3 _% g end;! x" _9 s4 P& p! t' O3 _7 |* z" `$ ~
(2) while <condition> loop1 p O0 R$ G1 D! U
<statement sequence1>;% ~- [; D9 c w, Z5 {$ Z3 d
end; e4 O/ g" c8 O0 u) Y
(3) repeat 6 e0 c# e" W5 }
<statement sequence1>;& ^1 N- y+ g2 j. M
until <condition>;4 d3 }) L8 i. ~; A- L( J- u
(4) for <condition> to <condition> loop
& D @4 B/ Y6 }7 r5 L0 L <statement sequence1>;
g. K- n: a2 E9 x- V5 X: H t: C next;) Z% r" `1 \' c3 S0 |7 Q6 F/ W- s
3中断语句
3 [! n) n3 K% z; B% S waituntil <condition> prio <integer expression>;: T( C( ]; ]* `! n/ ~
& \- p$ p3 h" l3 C6 J! w6 @& ?4 ]
% y. b/ w- E# j/ a以上为常用的函数！( j; O. ]! | g
还有很多，如有需要我把资料发到你邮箱里
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