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发表于 2012-11-13 08:48:12
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1判断语句' G2 U' d! \0 c8 _. p
if <condition> then; X/ Q0 Y X% y) ~
<statement sequence1>;
* y! p4 V5 A0 ~( U9 z, K! R' B elseif <condition> then/ M9 l. t" O0 {1 G
<statement sequence2>;
* _# r, L0 O$ h( R8 `2 w: H/ t else " G6 b) C6 E6 |/ \! |' {
<statement sequence3>;
& y; `9 M' U: ] end;
5 n3 W4 Y6 g. Z- j* N0 p; j如果分支比较多，用：
- |0 C# Q$ H9 N inspect <expression>+ y$ Y. a$ V7 } c& z
when <constant_list> then
$ R% N! F% `% T+ ^) V <statement sequence1>;) s/ o+ o. I; [
when <constant_list> then
6 E3 F5 ]- B* ?! a <statement sequence2>;
5 c% B8 `1 ^: R& B ...
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<statement sequence3>;" P/ c: t5 h h7 A
end;
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1 F) ^- C" t" ? v( f2循环语句
2 l/ \, v$ u3 S+ L6 W4 @8 n (1) from <statement sequence1>
9 E- p- ~6 @, ~2 Y until <condition> loop
0 V8 j5 Q1 { A4 r. T: J <statement sequence2>;+ B1 L% b( T1 p3 y
end;+ |8 w2 U+ w% r8 M3 U! J
(2) while <condition> loop
0 e, B! V2 {9 y q, m* K <statement sequence1>;8 V, ~6 C7 \4 |+ l! V
end;
& @0 T( {/ p5 e& Y7 \( Z (3) repeat
8 q& ~* g" }6 V8 L, z+ P. `0 }( K <statement sequence1>;* W4 {+ j6 M7 R) Q% j
until <condition>;
( S% Z4 Y% Y8 S (4) for <condition> to <condition> loop! h. P4 B2 s2 ~5 d
<statement sequence1>; n+ l' s1 t7 }- t
next;
$ p0 x1 `! j" H2 l* q3中断语句( ]) v! ^0 J# I6 v; F
waituntil <condition> prio <integer expression>;2 }3 m" Y1 }- L/ j
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4 M, L- f$ ~7 n. u2 J7 [9 ^以上为常用的函数！ c- g7 x) E( O( g9 ?; V7 T
还有很多，如有需要我把资料发到你邮箱里 1 W; ?; Q) U1 t! s: `) V
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