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发表于 2012-11-13 08:48:12
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1判断语句6 m' z/ ~( ~- [2 \" |; ?, X6 `' K T( w8 H
if <condition> then
0 v" W' Y/ H2 A* ^( B J& ] <statement sequence1>;
2 B& x" ]) S" b$ Q# M2 w0 L elseif <condition> then
; D+ U% ?% ~/ K1 Y <statement sequence2>;
0 w$ v2 I. V, J o1 t0 ^ else
6 o* i% T% F X4 L" J; ~ <statement sequence3>;
& @1 `9 K1 a% P% ?6 k end;( ~, r% v+ Q9 p3 L( b) ? H
如果分支比较多，用：& P5 ^. i" q& P& q* M# {
inspect <expression>
; u6 p0 n. {/ W- T( c when <constant_list> then
) `- @; l" b6 t' E h <statement sequence1>;
; q, s7 Q6 c/ \, v* f* s+ l/ h+ l( l& d when <constant_list> then! ]" e+ e0 T9 _1 E9 o- F) R2 W
<statement sequence2>;7 `1 x, \1 g6 T+ p. E3 T5 d# P
..., E1 z; I6 E3 t$ J/ c
else
& j% G* H7 I$ N. \ <statement sequence3>;* C( k% }- h% J+ f8 ]. ?. p
end;2 O* i6 f$ v/ \. w% A- V6 a0 }/ @( N
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2循环语句
. b1 Q# j1 t5 ]1 J2 \4 u4 |3 V: f (1) from <statement sequence1>& r" v2 M" s& q) Y9 y$ Q9 N4 h, `
until <condition> loop
5 W5 I- X5 B. O0 t- m' T <statement sequence2>;: n6 \" H- p* x v& f) N, n: E6 p
end;
# |2 `2 k& F& O5 G (2) while <condition> loop$ Q# y3 p4 ?: _, z1 J' ~" D2 v2 G5 T
<statement sequence1>;
7 v* w" w7 C0 M) c6 O2 e5 o# @7 a end;
! {6 M" E# z- x5 X. ]* o4 i (3) repeat
! Q& [4 q9 _) E* P- ]" m <statement sequence1>;
5 Z' M" z$ k$ \5 g until <condition>;
) Y3 o- F! m# ^" A6 a (4) for <condition> to <condition> loop
2 J# {) A/ E) ~( i/ N F% x <statement sequence1>;$ x0 i$ u0 `/ Y; { A+ o) s/ V
next;
5 h) B2 j8 B# o, w3中断语句
5 `$ h6 S9 f/ n$ _7 @8 ] ~& d4 n. { waituntil <condition> prio <integer expression>;7 b9 V4 e2 b, k( K, ?
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以上为常用的函数！
8 x( {$ P% K- |: u7 h( D1 H还有很多，如有需要我把资料发到你邮箱里
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