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发表于 2012-11-13 08:48:12
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1判断语句
* X5 o+ e( s9 m4 | if <condition> then
4 _6 }: `3 e% Q0 q9 ]: }6 u <statement sequence1>;
( U' ]) s% a |5 a4 }0 _/ G7 F; f elseif <condition> then5 e) a/ l1 e7 O& `8 Z* v- d$ x5 i0 v
<statement sequence2>;
5 r7 ] O: @. ?/ A6 X' j8 S else
+ u# N; I6 k/ S/ ]; O <statement sequence3>;' q3 l7 A; z# _3 N& t' z) \1 z
end;
8 A6 a. J6 @* ^$ M" x/ A9 h如果分支比较多，用：2 X, H7 y$ B8 w8 g& O5 P( {
inspect <expression>4 j- [7 ]4 r7 f/ B v3 \
when <constant_list> then! J& x; p& m4 M* l
<statement sequence1>;; ~! V! K8 @6 e% [. w8 }: l' v
when <constant_list> then/ {0 L( m* Z U% p* w/ D. y
<statement sequence2>;$ s7 s8 j4 O$ {6 g; X: g
...
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<statement sequence3>;
! A: a5 g' a+ a1 N7 O( N/ ^) Yend;
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5 A4 n! M4 X& w2 H7 t6 F& W" B2循环语句2 ?3 x. o- l0 r6 S0 I' z
(1) from <statement sequence1>( n" a; H, n; e" @8 f" X) l
until <condition> loop
4 l' K# d3 ~3 s. [4 O+ O; { <statement sequence2>;/ \8 h% e3 [8 i: X* b" R" W. j
end;
, u% O1 f7 C! n& L. K (2) while <condition> loop
6 c* C- ]' D( H <statement sequence1>;
( Q& @7 |" V; j4 e2 G- y+ E r8 C end;
0 Q& X) l; M7 M) A1 l3 Q (3) repeat 0 g3 |, d6 U H
<statement sequence1>;% [* H# S3 U! \1 j2 d( i. H
until <condition>;) b# T2 z: O- x3 j
(4) for <condition> to <condition> loop5 V8 b2 N0 t4 v: Q2 p
<statement sequence1>;( s+ n0 B8 d0 L- b
next;) n# \" {' @+ ^( W* G* \
3中断语句
5 z8 k# M, P& w7 g. c7 ` waituntil <condition> prio <integer expression>;; T3 z2 b& \& z& b7 [! t3 W
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$ }) k: B( j8 W, i) p1 c4 D以上为常用的函数！
) `6 }. A' x" ?- l6 q' p& G1 N- `还有很多，如有需要我把资料发到你邮箱里 8 X1 c6 ?. e% b: Z3 r) K
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