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发表于 2012-11-13 08:48:12
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1判断语句
+ c W/ S/ S/ T- h4 E/ n if <condition> then. k" v% Y V# N7 J
<statement sequence1>;
" @# Z4 H: ~ {9 ? elseif <condition> then8 w& v) L i7 f+ y2 r
<statement sequence2>;
& L! w# Z3 e1 w# x, u/ k$ F0 A else
& i7 s k% m5 Z, T7 u" { n& U <statement sequence3>;' I! o7 Y( ]) ~# }9 ^: b* @- ]/ F3 N" }
end;/ C# H, k: v' c8 O5 Y+ x
如果分支比较多，用：# Y8 c _9 p2 n
inspect <expression>
: r2 }& K0 \2 F5 A when <constant_list> then+ Y$ ]$ L0 s# W' M* q; j8 P9 R* ]
<statement sequence1>;/ \. E8 Q! ?" P, z! Q7 e2 N' }% Y& I2 Y
when <constant_list> then m$ l' P& P) H; k% }) u- y% @* S5 H
<statement sequence2>;# o6 Y) }- N: H7 R' }
...
1 G6 o: U6 S8 R0 `% I else
5 H1 N5 ~% n/ T6 Z8 X' R' { <statement sequence3>;
2 H9 D, D: f1 r: ?7 g5 mend;
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2循环语句
; ?4 I3 B: F+ @6 |0 H: `/ @, B (1) from <statement sequence1>
4 e& q* |8 q' @& j! I5 A until <condition> loop
/ ?$ v) ~$ s6 X$ } <statement sequence2>;
' s- h0 S/ C1 i1 t% k% Q( L end;% a* C# |% ?5 _2 M, D2 Y
(2) while <condition> loop
- k; p1 e" J z- T6 ^9 H <statement sequence1>; h) m7 w3 M' W, y# [
end;
/ D. L: W) c- o3 H, h( B: u4 A3 O (3) repeat 1 X/ [; h; ?4 b+ f. u/ \5 R# h
<statement sequence1>;3 B5 Q$ i1 v% Q# G% I/ m
until <condition>;' \) w8 }, a5 b$ Q; U
(4) for <condition> to <condition> loop. i( U* [% J: T5 R' p2 z
<statement sequence1>;; @. b4 c* O* Y6 j
next;
1 ~+ F4 Q# \1 K0 w3中断语句
) [8 D; I: i: t0 s9 I waituntil <condition> prio <integer expression>;* M0 h$ n% r1 n) y( s
7 P9 d7 R0 `- f2 c) }* F
) [. i7 y6 U2 c/ O, @以上为常用的函数！
; ^( p' X5 m: J' u) I还有很多，如有需要我把资料发到你邮箱里
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