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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
# U* Y! b$ V1 P2 }0 G if <condition> then
8 ^+ ?$ i. ^8 U( R+ J" ~) [& ] <statement sequence1>;
+ ?1 P1 h4 |$ e9 T% b elseif <condition> then$ d: u" i# z/ ]8 Q
<statement sequence2>;
5 R9 {$ c) T: M" m else $ F, s- f' L& _* k* K
<statement sequence3>;
+ p2 R! Q- _" [ \ end;5 ?6 r0 M1 \2 i. E; @! L, Q
如果分支比较多，用：
7 J; c2 h# Z6 M# s( z' } inspect <expression>0 S7 B: _$ u- X( d
when <constant_list> then4 L; k+ z- M% u
<statement sequence1>;8 ~- Z$ |7 T0 u( M* w) h6 u
when <constant_list> then/ ]) k* J; I9 n8 R
<statement sequence2>;
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else
7 F& [* H, z: M8 a5 d" V6 b <statement sequence3>;% O! N d' I+ F
end;: \, k3 K, B( K; e/ O* ~
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2循环语句( u; C! [. b _2 e3 T
(1) from <statement sequence1>% C5 J4 W) j. v
until <condition> loop
$ h- X) \. V: o; V4 }% y+ b <statement sequence2>;0 r! f( u. n5 m$ e r3 x
end;
) j6 J. ~( t) d (2) while <condition> loop, b, \- U v: z
<statement sequence1>; }2 b* k) ^0 Z7 C# f) ]
end;
- L- v/ y1 U1 a! H3 h (3) repeat 0 r. g5 S) i' v/ z8 @
<statement sequence1>;" [+ h. w4 d4 _; Z3 E
until <condition>;
- a) D8 V* u0 b' m2 D) ` (4) for <condition> to <condition> loop
" }* y8 T/ t4 R( F <statement sequence1>;
2 i4 R+ K8 A! l8 ?' Q8 W5 D' J$ w next;. w' v: p: X& w+ {
3中断语句
) G: a5 ?! R( A% Y5 E$ l waituntil <condition> prio <integer expression>;
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以上为常用的函数！, F% q. r% q# B# e# M2 }
还有很多，如有需要我把资料发到你邮箱里 ) H0 x' |5 z& K
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