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发表于 2012-11-13 08:48:12
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1判断语句7 p0 C! M5 |8 H) ~- Y, G- `
if <condition> then
. n. j; j2 ~. ^, [ <statement sequence1>;
$ }9 f! j' h. G) M elseif <condition> then" O9 e3 }% Q; |; J. y0 k" x
<statement sequence2>;
4 ~, E- p. t6 y& a: K else
* j1 u' v% J% G- S <statement sequence3>;( Y, L9 d% Y2 K- p. p
end;
7 U- b5 D: K$ ]! `: ?如果分支比较多，用：5 x0 g- ^# P0 \' F, K6 C
inspect <expression>
: h8 N; s7 Z: j when <constant_list> then! i, x' K1 B% Y, u- F1 O7 j. o
<statement sequence1>;
# ]5 W' F" [& w+ w! a, \ when <constant_list> then
& f+ W3 F2 Y& r" \ <statement sequence2>;
8 Z- w0 {2 A% Z2 [" N ...
1 O# W- }% @7 `2 b3 x else
& B7 q, y3 V( j! ~ <statement sequence3>;
+ B/ v# F1 E2 |8 m( Qend;
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2循环语句( W( F5 J, J; w0 [# x9 F$ S& ]
(1) from <statement sequence1>
* U4 ], }) l; H until <condition> loop+ [) @5 `. s' x3 H. P7 _( X9 ?
<statement sequence2>;
4 _+ t, j& M( ]( P) e+ J end;
1 D$ a" e2 r T- c (2) while <condition> loop
# I2 o) W% ~, l) t <statement sequence1>;
: R7 X6 C5 f- F end;
1 F& _ @+ z& P9 Z8 N0 h* U (3) repeat
$ Y9 Q# B6 S% B& u1 d <statement sequence1>;! r( O- r$ d* x, j8 C
until <condition>;* p5 @" _8 m; h
(4) for <condition> to <condition> loop8 Q% P$ e: k- ?( u8 E2 j4 k* o
<statement sequence1>;
- c& c. T' k) j& q. d4 h/ [( c0 G next;
( [) P' p: w% K# Q6 N* `0 A+ ~' J3中断语句5 {0 f" A6 b; X! i
waituntil <condition> prio <integer expression>;/ {7 r4 |* ^3 a
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# ~4 i0 k5 K/ b" q. s( }
以上为常用的函数！+ x0 l2 P3 U; ^! Q# Z$ c8 r# @
还有很多，如有需要我把资料发到你邮箱里 1 X; h S& U: Y, G& O& J$ y; E
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