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发表于 2012-11-13 08:48:12
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1判断语句
8 a' o2 x+ v- m- h0 L1 u if <condition> then
* i" x3 ~4 M5 w7 i <statement sequence1>;
" J( C W+ _8 U+ ? elseif <condition> then/ i3 w0 {( u \& h# Q
<statement sequence2>;. t/ e8 z+ P/ i9 Q; }" \* H x
else 9 R' l4 s3 ~- t g. V E3 ]9 k
<statement sequence3>;
. h, `: Z+ K0 j2 m9 w4 o end;
1 D: I' h! A3 Q/ J: ^: ?& J% ^如果分支比较多，用：
8 }3 @8 ]# e" K; R5 p inspect <expression>+ ^1 ~, p$ K1 V9 t; z: [" k
when <constant_list> then
' L) {* Z5 N) d7 U1 U <statement sequence1>;/ L0 V+ P' W6 J. O, e# b
when <constant_list> then- u; k5 h ^( L; s6 K5 w8 T$ j
<statement sequence2>;4 o( C4 \" |: w% @0 [
...
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<statement sequence3>;) U0 R+ X; B6 X% W) y( a5 ~& G2 r; s
end;
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2循环语句! N$ b1 @2 R, p5 f& v; u3 N* h: S2 F, t
(1) from <statement sequence1>" z% {: i: R5 F3 {" R
until <condition> loop, T) o5 { B! h9 C7 X0 L
<statement sequence2>;
. f0 F: h, E5 Z9 F: _2 @( d end;" U& U8 o: M$ `; x. J. n
(2) while <condition> loop
( @+ v8 a; w! A' s# }5 m1 b* o <statement sequence1>;
+ ~. P( b9 L: y7 L end;3 ]$ p5 Z% f- O3 a6 L5 @1 E0 p+ A
(3) repeat
; n/ R/ g7 E$ i1 G <statement sequence1>;
. h' I! Q: u- g2 `8 v( l4 [ until <condition>;
0 z$ U/ ?7 j8 g8 E0 Y* V/ M (4) for <condition> to <condition> loop
9 b, V T( r0 S# P( ^ <statement sequence1>;9 c+ ]) y' {* w9 q+ q
next;
0 v w0 \0 n' W$ w$ C( o' S3中断语句
- x$ l2 ] v5 B" y, b waituntil <condition> prio <integer expression>;' R( Q$ s/ @! W9 C& J# ]) |/ |
5 G- u( U. Y1 I9 f3 @
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以上为常用的函数！
7 s, {4 T% Z. Q, Z/ {# l还有很多，如有需要我把资料发到你邮箱里
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