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发表于 2012-11-13 08:48:12
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1判断语句
7 X7 V# |" O% p$ Z% B6 l( Y if <condition> then' Y: |* \: H% |' C
<statement sequence1>;
" Z ~- u/ o/ W* X elseif <condition> then
" [( E8 k& w, O <statement sequence2>;' ^, N- H2 D+ x# @! W& p& Q! m I5 _
else
! X! V( M7 G s0 d! i" z <statement sequence3>;
0 h/ A* r, N$ l end;
5 |! J8 b- O) `0 B7 I0 j* H2 R* Y如果分支比较多，用：: l) K7 l3 v; O9 O
inspect <expression>. c! o7 Q1 ~, E z3 d- q
when <constant_list> then( C* x/ K( |# e. w' f
<statement sequence1>;
. @) \8 C. u) B. f0 x. S5 n/ ^% \" I1 j when <constant_list> then
2 j* j( E7 Z0 ?9 H6 q1 O" z* X; q+ W <statement sequence2>;& }8 c- b. y8 b
..." @5 y2 X# D$ V4 V' N" a+ x
else
) g' W: E! H4 F1 O <statement sequence3>;" R p% G- c1 ]
end;
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2循环语句) q- D" [0 z+ ?% ?1 b$ D8 o0 A! {
(1) from <statement sequence1>
( D$ l0 q' T( Q4 f# F( I, z3 M0 Y until <condition> loop
( \- V5 b4 F8 A: R <statement sequence2>;. G" R$ V6 L5 T5 \! s8 t
end;
5 m$ F \! m% [* h1 S2 p: O (2) while <condition> loop
) Q9 B# U0 G( w7 k% R <statement sequence1>;
& f/ T0 d& N. \ end;
1 s( R/ I+ H4 Y) A: Z9 h, S (3) repeat $ I V6 S# x2 U: m4 O
<statement sequence1>;! f" ]; |: _! E; k! ?: Q
until <condition>;7 f6 C% O4 R( G
(4) for <condition> to <condition> loop; M7 ?5 q( ~2 o9 `
<statement sequence1>;
; { y/ m- c+ O& M next;* k8 P# }; h6 N( P- [
3中断语句
6 w4 s5 b& M# G9 ?& K! K3 l& B waituntil <condition> prio <integer expression>;4 S3 Z$ X% p' L; O- [$ b
, t) ]% i) x1 e6 ?% Z. Z9 J7 s: F/ f+ b4 p
以上为常用的函数！. B1 b9 p6 E& M) Q
还有很多，如有需要我把资料发到你邮箱里 - Z0 L" P$ Z$ \$ I8 V7 R
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