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发表于 2012-11-13 08:48:12
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1判断语句
9 T7 o. l7 p( N0 I b if <condition> then
& ?: D, t" N0 w <statement sequence1>;
! u2 |' a5 J3 v A! ^ p elseif <condition> then9 Y: N* z: I( B
<statement sequence2>;# }0 k: M+ T1 I$ y; b @! ]
else ; r& L# s% Q: v
<statement sequence3>;. h1 d+ J' U( N. d
end;' `# t/ f$ L# H& c F0 t
如果分支比较多，用：
& h# o2 r) `! n& n8 {# p, V inspect <expression>
6 `* b5 E; S( u& l when <constant_list> then
8 r6 N8 O! v4 A. I! \5 d <statement sequence1>;* b# Y7 E Z; O
when <constant_list> then6 O! M- P; {% F% c/ v$ G; h7 c
<statement sequence2>;
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else. w7 y5 U) j9 O2 n% b: w
<statement sequence3>;
% V4 `- A ?; i% M3 N |7 Xend;
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2循环语句8 J( q! |! [, ]9 Y3 E0 C
(1) from <statement sequence1>. T1 S+ l. U7 @( `) O+ Z
until <condition> loop
2 f, c! W3 z/ w0 k3 U- z <statement sequence2>;
( @' r# i# H6 b7 M$ F end;, H: ^+ p' |: p/ I& M! H9 x
(2) while <condition> loop6 g( |. |/ P( z$ B
<statement sequence1>;4 ?6 U$ t i5 L" |; s2 H5 d/ |
end;6 v0 B! k9 C& `
(3) repeat + F" u9 S% W C) d- y& X/ w
<statement sequence1>;
# Z! p; n* M' b& n5 Q* q+ f& ? until <condition>;5 U" `! o: v. u2 y) g% p" c
(4) for <condition> to <condition> loop/ D& H5 v1 X7 P6 N/ L4 }) A
<statement sequence1>;$ Z! ^8 u: L; W. q8 K1 Z
next;
I+ M$ `6 J1 g* t# N2 u+ p3中断语句
1 h. o0 ]# ~2 g waituntil <condition> prio <integer expression>;
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以上为常用的函数！/ y, K4 w% c+ d5 w l7 F3 n+ y8 ]
还有很多，如有需要我把资料发到你邮箱里
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