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发表于 2012-11-13 08:48:12
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1判断语句
' c3 U! t- A! _# G if <condition> then
* o* A7 X4 j& t s1 E L- O <statement sequence1>;1 Y- ~7 R& v: k+ w- F
elseif <condition> then
. e. ^4 d2 ]0 k# b <statement sequence2>;( C$ S! f1 Z/ w+ R }
else
( X# p8 C( \' n0 l% C# o <statement sequence3>;# X. a' n( s( D5 s: C) H/ c+ W
end;
2 ?5 P, x6 ~3 X, V如果分支比较多，用：
; I" }1 d# H) c& H3 f5 a inspect <expression>
8 B* n. {4 y$ ~9 M/ [0 p/ c7 n) \) V when <constant_list> then$ p, z/ @- G; J
<statement sequence1>;
$ z( }4 l- T1 F4 Y6 m when <constant_list> then
' g5 g' W1 K$ l* p5 K. ~7 f( m: S <statement sequence2>;
4 w9 r) V l) E3 j; L- q ...
S, D; c) k5 G+ m, ^0 r* n9 R7 E5 v else& n. ?: n0 n4 e% R+ B! \$ M2 q3 i
<statement sequence3>;
# H: N, i4 o! g; E7 pend;
5 l+ v" u9 X& P2 Y5 N5 v
3 _0 _+ t$ ]! g5 D2循环语句9 P! a, p$ A$ j5 i
(1) from <statement sequence1>5 Y2 e4 Y2 P% L% w
until <condition> loop+ {4 A; y" c7 X- t
<statement sequence2>;
) e8 t' e% C& c; ?! F8 h" T; J+ A' m end;7 u1 W y+ Y/ @/ v$ Q
(2) while <condition> loop. M/ x' e" ~9 B; ~- C: e* O
<statement sequence1>;! g# C8 M1 G+ L. c6 ?3 u9 g
end;% Z6 [, M1 r {* A2 O3 }: [# C
(3) repeat $ c3 |- t8 i y, T( p+ D
<statement sequence1>;
' D+ n) }4 r; I6 {; T until <condition>;
. N) b, {7 J5 _) U* E& H8 g4 \# n y (4) for <condition> to <condition> loop( N/ [/ {* r+ I
<statement sequence1>;5 T. X$ e8 n; s
next;
& h4 E) }& e; z5 n8 v3中断语句
- Q/ C m5 i9 D) a( ? waituntil <condition> prio <integer expression>;; W5 y/ w. o: y# t. O
7 _: [4 `7 \# q' k Q
+ b- o7 [0 m# C( I+ Z以上为常用的函数！9 }, a4 z. |, G! J5 }( g% A& H3 n% q) _
还有很多，如有需要我把资料发到你邮箱里
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