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发表于 2012-11-13 08:48:12
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1判断语句1 w+ v* O! m- n$ S( o3 ^
if <condition> then
1 Y# u9 J9 s9 u0 \& {, k <statement sequence1>;
# i8 K: G0 S$ E5 V- x elseif <condition> then* b5 E, q' I6 M5 q9 U5 O/ @) Y
<statement sequence2>;
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<statement sequence3>;
1 \+ T, H% F G B end;' Y# c' Q8 f% R/ X7 r( l6 h
如果分支比较多，用：8 l# P* @! |& E6 C$ @
inspect <expression>* @% D# e5 J3 \9 D- ~) S9 P/ q% {3 U
when <constant_list> then$ f' y1 X8 t( J7 t6 }2 @
<statement sequence1>;) P, i+ ?9 i J* [6 R
when <constant_list> then; r' s0 Y& t. c3 w5 F$ T
<statement sequence2>;
) h4 F6 r( ~, N4 N ...
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<statement sequence3>;4 f4 }) s# E g) b9 l3 `
end;
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2循环语句" y. W4 r$ ?1 C' T
(1) from <statement sequence1>2 n6 {- L( [) t$ [' V; b" S
until <condition> loop
1 C! t; e" q& c" k9 o( { <statement sequence2>;- Z" f9 e) B# L, @& X; b
end;
5 ]6 `8 B1 k9 v6 C2 f2 a (2) while <condition> loop
: y, h2 e/ Y% @1 N3 h1 P$ V3 s9 B9 z <statement sequence1>;
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(3) repeat
' p3 U: |0 r# W0 c# i& [ <statement sequence1>;
% l' w6 w" f, [7 {* p until <condition>;
; }3 f# p5 z( ^- \+ {" d! q4 I2 k (4) for <condition> to <condition> loop, }5 n3 |3 L; F, O0 D% E- s- u3 u0 a
<statement sequence1>;
4 B6 s, P$ W* l1 t) v/ {. L% ~ next;( B( V$ t" K4 p/ k$ `2 ^6 ~
3中断语句
: V5 ^8 O0 Q) {" @/ [8 Q. T! ]& L waituntil <condition> prio <integer expression>;* j0 @6 s3 B7 p* X: h$ K
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$ }% {0 x/ R O% T以上为常用的函数！
1 @$ ~8 ^1 F+ ~还有很多，如有需要我把资料发到你邮箱里 , |0 Y/ n/ h1 [
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