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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
% n/ E8 D( x3 [: z/ P if <condition> then- N- m: r7 Y6 k
<statement sequence1>;( N! _& G/ `: J+ G8 f k; P g
elseif <condition> then Q. R1 [" d! q( B# V3 s
<statement sequence2>;
% k o% g2 R2 g+ f else
* W1 w3 q4 L# F& o: X; @5 | <statement sequence3>;
1 _/ d% x- [) M H/ L6 j end;
3 R; K$ S2 H, o: ]- D) w# M如果分支比较多，用： [; V: F1 `- N1 \( q' M+ Y7 R
inspect <expression>
8 ^; z2 J$ `8 o: i# o* d when <constant_list> then
' q m. |8 r; N# S% m <statement sequence1>;& Z1 S+ o a* u
when <constant_list> then) A: W2 e! D- E2 [
<statement sequence2>;
0 S5 B9 ?- m8 j/ C/ j ...
2 b$ ]' t9 _ ?. A& m else
2 v8 m8 h5 P# f Q4 Z( l <statement sequence3>;
v/ X2 i' Y- U Bend;0 P3 n1 u( o( r% e9 i4 l# N
) E- B' g) e4 _. A+ R8 `3 t2循环语句2 t9 x+ n' i; R
(1) from <statement sequence1>
8 }* U# h; n* @: W! d until <condition> loop( V, f& ]% S( @
<statement sequence2>;0 n/ Q4 M9 t# R/ {1 \& @8 }
end;' U% q. F4 B& V2 C9 a
(2) while <condition> loop5 m& X! }- g+ I- Z! y
<statement sequence1>;
% U5 |/ `9 n6 f$ q, e4 U end;
0 [! h( Z" U4 }( V; r (3) repeat 8 {" @) M8 G( ^* A' o: R+ P
<statement sequence1>; Z& \7 ]* r8 y1 v2 Q
until <condition>;% S3 F& y! w. C% c
(4) for <condition> to <condition> loop
2 x9 I( s' u7 E <statement sequence1>;. B6 W; |& n$ \
next;* z. V8 P6 P: h1 n1 i& A+ C
3中断语句
) L- R* Z' h. S waituntil <condition> prio <integer expression>;
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7 i; t# v; U* U# o
以上为常用的函数！' d0 F) V" b! A' u: m' i5 ~6 q3 G/ x
还有很多，如有需要我把资料发到你邮箱里 4 d& S0 j% h3 X4 P" K$ M& k. O0 D
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