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发表于 2012-11-13 08:48:12
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1判断语句/ {% V) C7 q0 w7 [1 Y R
if <condition> then
# K1 U$ k9 L3 H2 o4 b! N$ d* q O <statement sequence1>; C, R( K& B4 w; }! ?
elseif <condition> then
* ~. `' Z% z7 w: S2 y <statement sequence2>;7 D! v$ N' F8 S( L) X$ T$ A" ^5 ~& v8 ~
else % j6 d4 s7 X- S
<statement sequence3>;4 [: c4 U V1 l: F
end;
+ M2 \% b' a) a `% S9 V0 c如果分支比较多，用：3 w; c2 v9 o8 w" w" L0 X
inspect <expression>6 |) _& y2 ^" f0 H3 @
when <constant_list> then
# c8 W/ y% J7 \4 E <statement sequence1>;; l! B2 [/ [7 }0 x z7 s- o
when <constant_list> then
- a; E n% I) p <statement sequence2>;) D- S8 p. Y- y# M* \, o
...
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<statement sequence3>;3 S6 [/ B: D% ]! d1 E. F
end;
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3 S$ j$ F" C2 @9 ~2循环语句
) V9 H$ ^0 F" n, q/ | (1) from <statement sequence1>- b4 n! r: ]& N% P0 I
until <condition> loop
& t' M5 z- Z7 p <statement sequence2>;
1 c+ n7 Q2 f( i# v. j8 J. W3 ? end;
8 |7 d" P! f0 n& v! w (2) while <condition> loop
$ N; N9 [! m8 |/ ^- n7 o! A; L: L <statement sequence1>;' c' f: ]' U! T9 A
end;- u/ d7 e1 c# b4 o/ V5 d
(3) repeat : |( d: s" w! [. _8 k
<statement sequence1>;
( \& ?1 h$ r2 \% v until <condition>;
5 |4 i0 T6 v: \5 } (4) for <condition> to <condition> loop
t1 L' T7 q6 h$ A6 t <statement sequence1>;
2 [. ?6 D- j+ i! Z- {' U* W8 u next;
$ V: D# H2 J. F* Z7 |2 t7 t6 x3中断语句* x. T$ f) F. L! Y: B/ |( @
waituntil <condition> prio <integer expression>;# _) ~' x) ^. w8 g
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1 U$ {3 ^& ?$ M以上为常用的函数！+ Z( h9 N5 C' a: z7 W* o7 y
还有很多，如有需要我把资料发到你邮箱里 0 v) g# V7 b: m1 R6 A
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