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发表于 2012-11-13 08:48:12
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1判断语句, z" R0 \1 Q! @+ {3 e: O, ]
if <condition> then
" q) A- r/ J, _ <statement sequence1>;
$ w' P( O1 e C! E0 p2 R elseif <condition> then, u9 G9 Y- W. q& h, q
<statement sequence2>;
6 A$ n' z: k0 U, `- \ else / u9 |! k. m+ o- V0 |
<statement sequence3>;- G& O; @/ S8 O' {; E( |7 }
end;
1 W3 T5 S3 @ i! s# n如果分支比较多，用：5 Y0 l5 O2 s" T- Z& b5 g% }5 z
inspect <expression>
( f; F* ]. ]9 X& b+ U/ \9 k when <constant_list> then- t$ G; d$ e# i7 u$ t8 f
<statement sequence1>;
( K; S% E1 k4 A/ L when <constant_list> then. x: d" R- y" w6 i
<statement sequence2>;7 A9 p. Q8 h, l
...& O$ T, E. j' Z5 g9 k
else6 u4 V6 D0 Z4 m5 J- b+ K' P k
<statement sequence3>;5 v* A3 H3 y% ]) y* |3 W8 \8 s' r6 K
end;
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2循环语句% s7 G: b8 ]5 A0 M* ~% t/ Y0 N) B
(1) from <statement sequence1>
0 C; N, `5 \. n. i until <condition> loop
) X4 H5 E& Z/ M5 z1 ^9 i" D4 Y, L <statement sequence2>;: D) u6 ^: n- U/ _# _
end;
8 A* E/ v1 y% b0 f7 d (2) while <condition> loop
7 `% n. K% [" n7 O; W3 W7 i <statement sequence1>;
5 { U8 b; u1 x* v+ j6 \8 u end;
. m! X0 G" k4 ?3 j& t (3) repeat ! \* P% P0 p4 F/ l6 K# ]1 Z4 H
<statement sequence1>;
" J( A+ i7 L' Z until <condition>;, S) r( N# Q1 a8 X$ I
(4) for <condition> to <condition> loop3 ^. D" s9 s4 x+ g- K4 R
<statement sequence1>;
) l/ M! m* \, o! W% M+ `, P" X/ X next;: R# z# d, X1 G) O U
3中断语句
5 V9 ~$ o7 q$ X waituntil <condition> prio <integer expression>;$ p# c2 ]2 \$ Q# A
! ]$ ]6 j/ E3 Q3 L2 {7 ?& r$ ?
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以上为常用的函数！5 o& |: L/ H4 r) r6 l
还有很多，如有需要我把资料发到你邮箱里 . \7 l+ U# f3 K7 |9 ?9 Y, I; L& r
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