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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
9 o3 W5 {9 b2 V- J! \0 b; `% L$ Q if <condition> then7 Q1 \$ h$ Q9 `+ ~8 L& C( {, i
<statement sequence1>;
$ g3 s% V. a! ?; z) J elseif <condition> then
5 h7 s6 ~1 U- n) r <statement sequence2>;; K; {) y; l. G5 F* i5 T- s& I
else 7 U2 L9 O* ?/ g' H
<statement sequence3>;; g+ |0 S& D5 E
end;
$ X% Z0 z1 B* u2 @3 r5 B( ~4 [如果分支比较多，用：
- a( a' y9 }4 b3 V inspect <expression>5 ~7 H. a' T- D
when <constant_list> then' e: N( A5 U0 `, s+ r2 [$ I
<statement sequence1>;( V! Q* } R/ Q" Z$ }
when <constant_list> then1 j/ ]1 B8 L. ]
<statement sequence2>;- w+ H S6 }6 P
...
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<statement sequence3>;: l8 N7 ` z! i
end;$ v Y' q6 [6 {! E! Z
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2循环语句
5 {2 s G: r' x/ B (1) from <statement sequence1>
' j, K% a$ m6 } G/ t4 E, Y1 u5 N until <condition> loop* j/ I! M" `. m5 ~
<statement sequence2>;
& Q/ b ^8 l) y# J5 R0 g" L7 [ end;
, |* V4 g/ Q# H& k (2) while <condition> loop8 m& {1 j0 R# F% l& w0 ?# C& Y
<statement sequence1>;) y C9 T, i# s2 X" P2 W
end;* ^1 G1 S9 M& D' c: n: ` W
(3) repeat
8 C- M' @, j5 u& ]: |' D <statement sequence1>;# Y$ X6 Y( Z7 x. E3 x1 u7 s
until <condition>;0 `' h* Z. w! Z" Z
(4) for <condition> to <condition> loop0 |# a" @' d1 W
<statement sequence1>;
8 W3 R/ o2 ~1 r2 K# d( g next;' S* M3 D" f, X) o4 J
3中断语句
. s& w, E/ n' W! c9 n) G( t waituntil <condition> prio <integer expression>;
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3 k3 Y ^5 d7 J以上为常用的函数！/ d4 Q1 C$ ^) \) C2 d
还有很多，如有需要我把资料发到你邮箱里 6 z& H5 v) h6 C9 Z( D4 i' i/ p: o0 c
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