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发表于 2012-11-13 08:48:12
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1判断语句; `' t' o5 F: d1 m. y
if <condition> then
, H7 }) t$ a( y% V8 Z9 _( G& x. ~9 _ <statement sequence1>;2 \' { X. S% F5 F& E3 E1 \, ~# e
elseif <condition> then
! k+ y+ L& ]/ X; ~) Y <statement sequence2>;/ `3 s2 j* \* z
else
4 W1 i. K, [4 Q6 m# ~3 P <statement sequence3>;, _, Q2 Q! U, A R7 [: e
end;
$ H3 v5 \6 u+ J S" B: l如果分支比较多，用：8 S, ^# p- q, T5 p. B9 I* f
inspect <expression>6 R# c* L' \# G5 N$ K
when <constant_list> then" z- t& c" y6 @+ a( W# W# f
<statement sequence1>;
. ]5 [. s' k m: ~. i when <constant_list> then% ?8 {+ X- s1 @- w; T' F; @
<statement sequence2>;
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else+ }1 B$ C9 a4 Q" @
<statement sequence3>;
4 v: e8 b- F' G5 U; Tend;- O( E1 L" }3 H( I, ~/ x. e7 n' p
1 X" ?. `# t0 |! Q+ U6 n& u2循环语句' d8 f2 t- }% K! D
(1) from <statement sequence1>+ I1 ~: x, l& w1 \7 [- q
until <condition> loop& y2 k* l- d# l b: W/ l, g% ^! O
<statement sequence2>;
. j3 n, p; O+ o3 j end;( c9 R( L, r9 e/ G( B
(2) while <condition> loop
! f0 S# R) W Z <statement sequence1>;
# o; M7 V* ~6 d" g end;
* ~6 d% g+ {0 [, j! a (3) repeat 8 y' T. R) P" `8 A1 s1 W
<statement sequence1>;
8 H9 [1 A. [" H; g8 X until <condition>;7 h. b7 a; j6 q+ ^5 @9 S& e3 B( ~
(4) for <condition> to <condition> loop
% \+ Y8 O( A' A9 k8 I <statement sequence1>;" w2 Q: k+ O5 J9 E7 Z; b2 _6 ]2 N
next;+ f0 X$ ^1 e" I& H% O) g& S5 g
3中断语句
7 S9 R6 Q: G+ ~" l. X3 [9 v waituntil <condition> prio <integer expression>;
* O5 K3 P" m- ^9 ~
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以上为常用的函数！
; l; D) g! b4 y4 r还有很多，如有需要我把资料发到你邮箱里 - ^3 G& a9 d y& b. k
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