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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$ ~( y9 ~) L' r' c& f/ u& T! a if <condition> then
( t9 l& L$ V2 J- R2 K% m <statement sequence1>;+ C) b5 ~+ w- e$ Y1 }" s
elseif <condition> then9 G/ H0 S8 K6 g
<statement sequence2>;0 d7 v) K+ i' ^
else
) i8 @- m7 ?/ l+ }' Z$ \ <statement sequence3>;' Y: x0 U# q; q$ f8 Q
end;
( Z; g1 `' t4 I( |3 e如果分支比较多，用：
+ n* g, u- h ?8 p; e2 y inspect <expression>
% Q' ?7 y( l* t& S3 N4 r when <constant_list> then5 q3 r! O7 v6 ]6 M, N# ^
<statement sequence1>;
; d; q- Y. i8 z& k8 ^! q+ {9 R# T when <constant_list> then
5 R9 D0 ^. ~$ m. w6 n& z <statement sequence2>;
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else* h& z! ` W! G* P
<statement sequence3>;
$ L' O/ e# g0 e; q+ e7 N/ Rend;
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2循环语句$ R, O$ K9 V$ z) v2 y
(1) from <statement sequence1>2 \/ b. s3 z, n6 F9 G& g* k
until <condition> loop
! |1 Z# U$ l3 A0 n4 C <statement sequence2>;; e4 V. x2 b% g5 v& ]9 Q- L- V6 ^9 M
end;
; j: ~/ Y3 q) j( I+ s$ ]- L! v (2) while <condition> loop: R7 _5 [# y7 S/ C) @- j' u
<statement sequence1>;
0 s/ }( r) z6 n: _' w6 u, n end;9 o9 k) D. Z( a! [* D+ E
(3) repeat
$ V& ^7 F1 w" P <statement sequence1>;# t8 s& S/ G, ^0 R- E6 h
until <condition>;
7 l- V% I6 D1 S7 \5 b& m9 T (4) for <condition> to <condition> loop
2 t9 p! t, E! ` <statement sequence1>;
6 W3 N6 v3 j% H2 h$ ^ E3 @, q next;% @" n* ] {) y1 `
3中断语句
4 i& B( Z8 d! G* R( Y- k$ F waituntil <condition> prio <integer expression>;! B3 y5 Q1 z. A1 N
5 C3 _* U" y+ H$ w
1 H3 R) `" V( \- u8 N! f% \以上为常用的函数！. _' S- V4 ~" L1 G
还有很多，如有需要我把资料发到你邮箱里 ; b Y( ?3 w! D% [+ k
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