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发表于 2012-11-13 08:48:12
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1判断语句
7 P4 d2 c% x4 H& [ if <condition> then
6 O% w# o6 m( d; f) Y <statement sequence1>;" v/ i1 A7 _& i5 J( U, P, j; R
elseif <condition> then3 I" r9 O+ H' W5 g; K6 R2 `- a
<statement sequence2>;
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<statement sequence3>;6 B a0 W, h0 Y0 q! B
end;* {+ q+ [8 H) y/ k
如果分支比较多，用：
9 G3 }! e# S6 C0 N7 } inspect <expression>( h7 {8 B0 }0 k1 v x; W8 Q
when <constant_list> then$ K8 x. E( O5 L2 Q( Q9 u& O0 z
<statement sequence1>;& v' M& U0 b. w
when <constant_list> then
3 d% s3 b, u+ w <statement sequence2>;% b8 w2 i. F! V9 |8 K8 [
..., {" q$ Z! t4 [
else
7 D% b6 F! V' H4 a <statement sequence3>;
! j1 w0 B$ }! o+ J6 oend;7 `6 F, g' ?% t
# M) `% \( R" w2 c* v- S* R2循环语句9 M N6 m4 z% ~! N/ Y/ i8 c
(1) from <statement sequence1>
I/ L5 p1 e& h4 h until <condition> loop
& Q$ M" d6 e- K <statement sequence2>;
6 K0 [) I4 b5 ]/ f end;+ n5 e3 Z+ Z' T K0 C
(2) while <condition> loop
7 D9 j6 Q# j1 K& A' g) Z <statement sequence1>;
* I3 q3 @1 a1 w3 u' J end; N9 W3 D( Z- I: ^' D3 ?6 s# e1 Y1 |+ ]
(3) repeat 2 ~1 z0 K r7 |2 R
<statement sequence1>;( W; ~$ U2 L1 ?8 I! ]* N& E
until <condition>;* W: ~" H) R; B
(4) for <condition> to <condition> loop1 u4 T! }6 [9 [ h+ Y% b. ]
<statement sequence1>;
4 g3 g Y: o ]' j* j next;
6 r3 b3 p) I7 s# i; y7 h3中断语句
! D# k0 ?7 m! U waituntil <condition> prio <integer expression>;) L# {/ e4 g( @5 n: i5 C9 c2 ?
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以上为常用的函数！7 e: k8 C( v$ c1 [& S
还有很多，如有需要我把资料发到你邮箱里
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