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发表于 2012-11-13 08:48:12
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1判断语句' m6 B" i( t! g
if <condition> then; A* c" }6 ~, C* ?
<statement sequence1>;8 F5 F6 q. b0 f
elseif <condition> then
& X. V9 l- D( y6 O! q <statement sequence2>;
- W! b0 W; e% b( }1 u; w H3 _* U else
& J+ X% [: K* i# h/ A3 a <statement sequence3>;: l- r3 C+ O$ J1 S5 R
end;& A( M) ]: l! W& p$ c
如果分支比较多，用：9 n% ]% L0 X7 x2 m5 i
inspect <expression>! v9 d$ ?, r7 ]2 w
when <constant_list> then
7 m3 F# ]9 y9 f) v <statement sequence1>;
$ O3 ]4 j: @ `7 f0 X1 _ when <constant_list> then( D" s' n* {) {. S1 O
<statement sequence2>;
* ~3 l5 D) k. |3 v/ E6 k2 S ...
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<statement sequence3>;
. l& g5 b. t k3 ~: gend;+ B# s$ v) K& A" A
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2循环语句7 Z1 i+ M6 ^. X7 {9 T) ~
(1) from <statement sequence1>- j5 q4 \$ z Q
until <condition> loop
; k/ w8 ?3 H* ?1 \ <statement sequence2>;
k3 `* J9 s. B3 Z3 F# k& h end;
. B2 {4 ^# w) L4 k+ L- Q8 Q (2) while <condition> loop
- i8 Z" ?7 P: K+ d$ a8 f/ Z) V <statement sequence1>;- n2 c7 M! y/ | E
end;) {/ [0 C. y) N; X, `8 f
(3) repeat
5 ^0 B: X5 `& S4 R <statement sequence1>;" k/ f$ e* j) D# V( s) q% D
until <condition>;0 y. p: ]! y: e& C2 R
(4) for <condition> to <condition> loop3 c: ]# |- F( |
<statement sequence1>;2 C: F* K* Z$ O
next;
/ W% i! Y' { A3 |& K3中断语句
6 s3 c' l$ W4 p7 l5 u$ b waituntil <condition> prio <integer expression>;( Z. `- K7 G3 r/ E3 U! N1 f
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以上为常用的函数！
4 N0 ]$ V3 G2 C( K3 n还有很多，如有需要我把资料发到你邮箱里 7 n' j4 G! Q0 ^
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