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发表于 2012-11-13 08:48:12
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1判断语句
% B( A, u% J+ ^2 Z1 u if <condition> then. C: W9 p- n! H1 i9 i& Y
<statement sequence1>;
$ U- l! h7 y- Q# B2 E5 u& ] elseif <condition> then1 d7 ^( V9 { s8 j8 `. e, G6 E
<statement sequence2>;
+ `. {9 {6 | L, X: X7 s, Y else ' i) y& l+ S# J1 b( ^
<statement sequence3>;% i4 C" ^$ ?+ u2 |# g2 `
end;
& L5 Q/ x% N$ B- W8 O- `如果分支比较多，用：
8 d8 o7 ^4 ]! v7 X; P inspect <expression>3 y" i4 f$ h# {. o2 s G
when <constant_list> then! f& G, C. A& p8 w) E
<statement sequence1>;
, O$ Y; E9 ], ]6 h$ u2 T, E; \ when <constant_list> then
8 G6 ^! h4 |2 Z/ V" v$ R# ?* T1 e <statement sequence2>;
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else
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end;. X) n) ~$ E/ p0 _- x8 u: R x
2 R' p4 W" `/ X: `2循环语句/ r6 E+ ?7 T* C$ G
(1) from <statement sequence1>
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<statement sequence2>;1 a. M" H8 ~/ N- e
end;
3 g; I# h$ r1 x; P7 y (2) while <condition> loop
, h( q) |* r1 Y* B) H4 }" r2 Z% M+ V, e <statement sequence1>;& Z% ?) n- ?+ D
end;6 i. H- U+ O) i$ K' r
(3) repeat % ?8 A* ~ K; h7 F: e! P" X6 B& q
<statement sequence1>;
$ e4 j; Q2 C! m9 I- Y until <condition>;
- m g6 E2 O) e/ r) V (4) for <condition> to <condition> loop( N+ y4 ]# a, ~2 W+ n B
<statement sequence1>;% h- S0 g" Y' |0 L8 L; D
next;. |; H- c; Z! G! l" O
3中断语句
- ~- D; r, J) a. E. F2 f/ ? waituntil <condition> prio <integer expression>;9 {7 u; u! u0 p
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+ T& ?8 v; Y: N3 N以上为常用的函数！
) |8 ~, @1 W! V" T7 f还有很多，如有需要我把资料发到你邮箱里
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