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发表于 2012-11-13 08:48:12
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1判断语句8 p& d0 u: U: S. x
if <condition> then
4 A+ Q, }! t7 ~- C5 i# G2 U <statement sequence1>;
6 F B4 h! `0 L+ z2 b! c8 e7 V elseif <condition> then
" `4 y ?5 O) T; a5 |, t! ^ <statement sequence2>;
8 S! [/ X7 b( i% y& r' c2 @- ] else
$ P8 p+ o' z. C <statement sequence3>;% _' k2 M$ t) W4 b* y$ p, w$ X) P2 s
end;- f9 V* p) R$ N
如果分支比较多，用：
# N% L) I& o9 \& x7 |6 l7 ~: N inspect <expression>) W$ [. ~/ T7 w
when <constant_list> then
" H6 B; J4 N; b, R# U* o4 [ <statement sequence1>;: }/ `$ m1 J/ r' `. a# D
when <constant_list> then
8 a: r) H. H* e. D <statement sequence2>;
6 g1 D. D1 b5 w+ O! ]/ [ ...
3 P2 u$ F9 k# T m, t else: D3 \: e9 G; T5 I% Q( |& \' I
<statement sequence3>;, h; o! a4 q7 o, Q7 i6 ?) s2 f' C
end;0 ~- R0 s. U) e% m0 `; Z) r
3 T1 K9 n4 u' K8 u. K- E7 H4 i2循环语句
; T; A, ~3 f. Z. ]/ p; F (1) from <statement sequence1>5 r0 G& w7 j1 ?8 ^6 P
until <condition> loop/ Q7 F; u8 W+ i$ `" c. _
<statement sequence2>;
) V4 Q3 a. y. ~ end;
. M( {" ` F- H. t" A. j (2) while <condition> loop) n+ ~6 Q+ g3 s* J, d
<statement sequence1>;; x ?8 x0 U. ~1 V' o
end;$ I, T# \+ N8 D. S2 X. u
(3) repeat
4 D# R z- b" x) h. |9 d1 z <statement sequence1>;
3 P& v4 K% L- |! R* C until <condition>;" j3 V8 d$ p1 t5 b2 j
(4) for <condition> to <condition> loop
( m5 c7 o6 R" u3 Y/ M& g <statement sequence1>;
, W% o1 l9 U2 } next;
" A" f- s2 a3 n8 A3中断语句
. o" l. J4 Y+ t' f0 q7 n waituntil <condition> prio <integer expression>;
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以上为常用的函数！( s' X, \6 X$ T. D. Q, U
还有很多，如有需要我把资料发到你邮箱里
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