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发表于 2012-11-13 08:48:12
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1判断语句
d( w/ v8 n- }) S7 W+ n, M+ k0 j$ q if <condition> then7 Q) U' P) M) O5 ?6 p! c
<statement sequence1>;2 H4 a, _5 f; p# Y. S
elseif <condition> then
, \* y l! \5 J5 H$ X8 s$ x- A1 i7 P4 B <statement sequence2>;
/ Y& s1 q" h( f9 a* x' r) s else 0 q' m1 r( o' l! H! b
<statement sequence3>;
J: l: b4 Q( g! n) V; W2 |# L- | end;
, {8 Q3 U8 P# ^7 e( {2 T4 [) U Y, U如果分支比较多，用：
! n& h, d# D! B" O, L$ m inspect <expression>
* Q1 N+ @) r4 h& _ when <constant_list> then
2 B6 e" j2 H7 z+ | <statement sequence1>;
6 }' k! X ~! A4 ?8 c' D( d when <constant_list> then
' O) R* V- Q" N. U <statement sequence2>;
7 }" w. J5 W t" Y* [ ...
. b4 L2 P3 f; [$ D else
& R& O/ f5 P0 f4 O1 S& k3 ~ <statement sequence3>;
3 t4 }2 ~7 D0 }' ?end;+ y& \0 O& ^* R/ m1 X% S `
* a* V( a/ i0 Y2循环语句$ A6 x8 N% W% N& @ q8 p9 F' s
(1) from <statement sequence1>
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<statement sequence2>;2 d3 x3 ?9 R+ L
end;
' t# o1 P1 \; l4 e (2) while <condition> loop! W) C1 p$ [7 W7 D5 ]/ B: @ \ W
<statement sequence1>;
! [5 x) C# D$ F' \* L+ y1 k' ` end;; l* D5 M* y# |$ O
(3) repeat T8 r/ M8 B* O4 b5 @5 J; t) d
<statement sequence1>;
0 m; ~1 H$ |) Y7 |' H: ` until <condition>;
! E% \( J: g& w/ J# m (4) for <condition> to <condition> loop
2 s+ i. V' z1 b% Q <statement sequence1>;" @# x6 d9 i4 k
next;
( f3 N2 Q, q; Y2 F3中断语句
- W2 i, n/ Q# M# L- Z waituntil <condition> prio <integer expression>;+ x! t, Q! H1 L9 Y7 z
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以上为常用的函数！
8 ]5 H- I- a. E; g, j还有很多，如有需要我把资料发到你邮箱里
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