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发表于 2012-11-13 08:48:12
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1判断语句1 M0 V1 c# l( @$ a# ^5 U
if <condition> then
" K1 m: `* y1 c/ ~5 J <statement sequence1>;9 F4 l7 J5 A) x2 J _5 d
elseif <condition> then
* q9 m8 j6 e. ~# [) r0 ~' e <statement sequence2>;
2 ^& z. D2 \9 h$ M ]' O/ _6 K else
0 g, G; ~) H+ F <statement sequence3>;6 P* j- C' O ?0 P% o% K; w
end;
, G% C' g% Y+ p% D. S+ i6 L: P如果分支比较多，用：
( M; s6 S; E' f! L7 l3 s, y+ V inspect <expression>
H) z2 Q% D' i4 A* ]7 v8 f* I E when <constant_list> then( `6 N* P& e+ Z
<statement sequence1>;6 T2 \) V% { h2 K8 b3 S* o) r
when <constant_list> then
( O \6 M7 @" N* S <statement sequence2>;
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else7 e" S* N6 z P7 w2 Q4 x
<statement sequence3>;4 J0 m: c* e% M. u2 Y' `* h
end;5 C* q& T* x/ E* Z0 j
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2循环语句0 K0 b4 C& Q0 ]7 B
(1) from <statement sequence1>5 k6 r& v" O2 r7 A0 G; x
until <condition> loop
) I1 \/ M% O. N <statement sequence2>;2 e8 `7 M9 ~9 K! H0 j" y6 E
end;
0 j, E7 Z/ u% A1 Z6 [& T (2) while <condition> loop& R; d( z9 G1 q1 k: s
<statement sequence1>;
, l. @$ {& C+ I end; B2 i: i. R- G' |+ B
(3) repeat - V& s+ i8 d! [9 Y$ o' @) `1 @' n& j5 s
<statement sequence1>;, J6 I9 ]: [5 U' Y
until <condition>;1 Z. h6 ^' w7 a( r
(4) for <condition> to <condition> loop; [0 c, u+ s) P- O
<statement sequence1>;3 c: a) I) ]* {! \0 q b& G5 T) D8 R
next;
9 K/ i( Q" s5 H/ s3 Y' ?+ h3中断语句
4 M/ W$ Y2 A! N* D1 J* z waituntil <condition> prio <integer expression>;( s5 G! Q3 z) |# u. t
0 o% d2 D. e- _1 ?; M/ A9 l) }$ {3 m/ m7 o+ a* K. x$ x, T
以上为常用的函数！
7 }. \2 @+ {3 Y4 b- [: ?还有很多，如有需要我把资料发到你邮箱里 + _- h7 U! N- L; b# W3 p3 h8 C2 @
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