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发表于 2012-11-13 08:48:12
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1判断语句1 @" G: g* D+ R G5 m: L# N" V( F5 f
if <condition> then
7 Z1 H/ I/ m3 Y9 W- B5 f <statement sequence1>;
/ S8 L# u" ~. m' h) _ elseif <condition> then4 \3 p4 A3 k# X; F+ [
<statement sequence2>;5 D2 z: y$ E9 f
else
7 O( ?" u7 Z9 b <statement sequence3>;" U9 ^5 D+ J% t
end;6 k3 K! U4 U9 M# X! \6 l) ?
如果分支比较多，用：
" [* j0 S& S! \% f inspect <expression>) N5 [( p0 L4 }2 p/ M5 T/ M$ l6 M
when <constant_list> then" d. x+ e0 c, Y, [
<statement sequence1>;& b3 O# _, n0 n0 j. @$ G2 E1 \3 O
when <constant_list> then6 j( J- y+ G- W/ |# h+ O
<statement sequence2>;& g/ j/ P- t2 R: G! B3 O* ~/ O
...! P2 I9 Z# ^ F0 C, A* j7 I! q
else
- ?/ t0 g2 s. | <statement sequence3>;- W) m# i1 p9 b
end;, R2 h( Z1 [$ C, d5 v) S$ n
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2循环语句
" r ] U+ \+ \ (1) from <statement sequence1>
" t, H8 _! w" ]7 t until <condition> loop
9 r, \5 d1 m! I: A! }9 t3 ] <statement sequence2>;
6 d& q; i# l1 Y" N. q) T end;- L& t1 X# o" \6 `
(2) while <condition> loop& D# P: U* P0 w3 W5 O5 y: L
<statement sequence1>;
- H8 y2 F7 S/ Q$ B: T! J end; f3 g' Y3 b5 {( T9 x
(3) repeat 8 ~6 U0 i6 Q4 m1 |, {
<statement sequence1>;
7 R6 a W: I0 |4 F3 y until <condition>;
) F w c' { M (4) for <condition> to <condition> loop3 k( m9 ?# X8 c
<statement sequence1>;3 u, v, W( u/ d
next;
4 {. h# a; R) {6 h3 F8 U) ]3中断语句
/ X- ?3 A7 G& s4 w. Q waituntil <condition> prio <integer expression>;
; v. w- M6 a$ ]7 ^; `6 s: E4 t7 ?) U. l% Y
5 x& V$ ?: i# ]1 D% v以上为常用的函数！ ^3 F' v$ g& s2 k
还有很多，如有需要我把资料发到你邮箱里 ( W: [% e# I, p \, A
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