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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
* Z" O, E$ \/ w6 z- ^$ w if <condition> then
6 X3 H, U6 s* @; [! W <statement sequence1>;& n& a- P7 h5 S, @. d0 U( E6 v
elseif <condition> then# \: t5 i! H: ]) C
<statement sequence2>;
. `9 f. ?% u7 i# Q else
L; v& j, l+ z <statement sequence3>;
5 W4 {3 L: O# P; y; M6 t end;
% V& b# h/ k! t8 j8 Q5 X如果分支比较多，用：
, G1 M* U. D7 K! x7 k3 q# y! C inspect <expression>2 Y+ I& z2 c- n0 ~
when <constant_list> then
" A- L, S$ O' h1 a8 n; Q <statement sequence1>;: J1 x- E) Z& m) M
when <constant_list> then
& p6 S5 w1 O! L% t ^( v9 o <statement sequence2>;# O2 {9 D/ T! j' t
... |. C4 U- }1 I2 H6 T6 h
else& A" g& B9 _/ s# [& A f( l/ O: y
<statement sequence3>;5 x# O* c+ ~% p& @/ ]) E7 o& D& ~
end;! s/ _/ a4 |) @+ ?! q/ m; x! W* O
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2循环语句
! K6 ~2 W8 V( g; b6 ` (1) from <statement sequence1>
% h7 w9 }- ]4 O8 d, B until <condition> loop" [4 X, S* h% U( E5 m1 N5 [- }
<statement sequence2>;2 a" t% S' N: Q
end;2 O" p" k4 V, C0 s( Y- U
(2) while <condition> loop
" n" ~' G( y8 n, G <statement sequence1>;
& Q! C7 f1 W3 a& _# N' R end;
- z6 z" q9 [/ t4 C (3) repeat : ~+ e8 F/ B" Z: W P
<statement sequence1>;$ L1 Q2 s# P# T2 H7 t
until <condition>; x3 u, d3 p. I
(4) for <condition> to <condition> loop
7 T! J6 x- q }7 Q( Z <statement sequence1>;5 ~; U3 y3 v9 [% Y5 E
next;; c) L8 y) e; `* K7 i4 W' C
3中断语句" K; |' w8 T3 L4 [! U! l; _2 f
waituntil <condition> prio <integer expression>;
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6 d4 w* N; f' S! v以上为常用的函数！
. B3 L1 e3 b7 l) S& X& Q, ]2 |还有很多，如有需要我把资料发到你邮箱里 ' F$ b1 E) I/ ^
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