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发表于 2012-11-13 08:48:12
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1判断语句
2 A) a! o4 m0 t E& D2 p* o if <condition> then
0 H! _4 C; }3 W2 o- E <statement sequence1>;
2 o8 s( k+ N; h4 p3 U elseif <condition> then3 T9 A9 ]$ K# s& h6 l0 k
<statement sequence2>;' U' [8 R9 m4 j7 y. {$ _
else
/ O$ @& _! A e! K <statement sequence3>;
* N) q! K4 }3 s9 R end;" \& b2 ?( X0 O( z
如果分支比较多，用：
' ]* f9 q, q: V) m inspect <expression>
) w8 ?6 |6 h7 t q when <constant_list> then
! d0 z* O# J7 L H4 A% @! L4 O' Z <statement sequence1>;
' q' U' [4 h/ D when <constant_list> then
4 [/ |% j; M- J: @ <statement sequence2>;
6 d6 K- L: a( w7 y& T ...
7 Z, K# M) a# D/ a0 \ else
" ^. d/ F6 h! Z; v3 a& E( J <statement sequence3>;0 \$ A2 q) x3 G; ^9 D
end;
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2循环语句
1 s) n/ q+ N- ]& X! E; ` (1) from <statement sequence1>
4 K( G9 J$ D" Q7 H" L3 { until <condition> loop& Q# \5 |+ n3 G4 ^7 ~. }) x
<statement sequence2>;# u8 H4 T/ G) v
end;+ I! e6 |$ j# \5 R+ K# H( b- v$ E* a
(2) while <condition> loop
0 w4 r7 g; L& }3 O* T <statement sequence1>;
! O. |& ^. i: N' H' ?+ f6 Y' F end; U; U \. Q- P& A4 m9 p' L
(3) repeat . K; s7 X+ Y( Z+ A @& T0 D
<statement sequence1>;( j; j K4 x$ t
until <condition>;
, E6 @/ P% H8 K, Z1 ]/ _- H- `- S (4) for <condition> to <condition> loop
+ F: |2 \3 s6 ^( V1 P' J6 Z- K <statement sequence1>;
+ J8 u3 w2 G7 S5 G1 D next;8 d+ Q! ^1 O9 a, b2 p
3中断语句+ e9 {6 v2 E$ o2 {0 @1 c, U
waituntil <condition> prio <integer expression>;
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, v- n7 g9 E& q6 U. o% o- z以上为常用的函数！$ ]6 L2 U, h5 S6 S" m, `
还有很多，如有需要我把资料发到你邮箱里 - c) @8 p' f1 y `, e! }; U
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