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发表于 2012-11-13 08:48:12
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1判断语句
& c$ S$ }( }' s7 Y. l if <condition> then
; U, i( v! N4 ~ <statement sequence1>;
4 c. e! L- ~8 I! H1 T% I% x elseif <condition> then2 ~9 Y l4 @% u% E; Z& c
<statement sequence2>;1 k v( ]' U. P+ J l0 N
else
6 q& ^9 J0 n, `4 e7 i <statement sequence3>;+ h8 u: x; B# d) I
end;
& c$ f v6 r# I如果分支比较多，用：
% X9 y9 k, G- r$ g inspect <expression>: Q0 n4 o2 T) \9 K4 K
when <constant_list> then
4 K, V( O( u3 K* H! { <statement sequence1>;. i0 ?7 P+ |& `* N" W! X
when <constant_list> then i( C# K3 }! L, u
<statement sequence2>;# G' v9 p( Y) j2 l4 F" f
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else
8 W) F. o5 A2 j. I0 @ <statement sequence3>; Q* Q- O2 d0 n: {4 D+ x
end;
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1 U+ M% k6 t6 P: y# \9 ~6 Y4 |( G2循环语句
/ S$ P& F, W- ]# W# F1 @ (1) from <statement sequence1>
3 q% u' J$ B& G, X+ j until <condition> loop
r. T. c# q7 ]/ ]3 g4 r <statement sequence2>;7 v+ p, F" d Z9 t/ c
end;6 F) X: Y! R6 Z! P: g
(2) while <condition> loop2 m# R5 J9 ]4 g/ W2 k4 k
<statement sequence1>;
' P& F: U/ w4 a3 y- I end;' F" l4 R7 U$ _- |6 z
(3) repeat ! D: s+ K) H& H+ h5 I. w
<statement sequence1>;0 Q# g Q& B3 y$ o G, {# ?
until <condition>;
# k* Z. F& s: {& z& e O (4) for <condition> to <condition> loop
7 m9 K) y0 v. g9 \1 O! G+ A- b <statement sequence1>;
3 B: O7 h1 l' L q1 ]1 ?. D! m next;1 l9 t2 _* B& z) c* O' }
3中断语句% @- ?. {# u. n8 o9 P1 |
waituntil <condition> prio <integer expression>;
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以上为常用的函数！) X3 ?: t" y" A1 U! V l- ] P, W1 R
还有很多，如有需要我把资料发到你邮箱里 + I9 A0 K+ p8 }; z+ v
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