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发表于 2012-11-13 08:48:12
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1判断语句" B' N4 {: p) h4 }0 V1 w& S) i7 h
if <condition> then
: P: u& Y2 ~2 ?% V( X6 ]( I$ k <statement sequence1>;/ `( [6 ?9 d/ C6 ], e0 {6 T7 y
elseif <condition> then: l4 c9 \; j' t! {
<statement sequence2>;
$ v% f" I, {6 F else , s( n& B: l2 y5 P7 b' y
<statement sequence3>;( F7 I( V$ p* K# w
end;2 v- H+ p4 Q4 ~2 h( T, Y8 i
如果分支比较多，用：
% {+ B; ~7 j- u% e7 h( V inspect <expression>( Y* ~! M; s0 ^3 Y! w: F
when <constant_list> then2 ^3 I' \; B" t) ~9 v
<statement sequence1>;
. N) B0 ]( v, D9 Q when <constant_list> then
. k4 s8 @( X% O" s/ t9 r) `2 [ <statement sequence2>;
1 r- |- H" R; |1 i ...
, ]5 J( t: k9 K$ o; ~8 y else
! r) b3 _" [- v; k4 Y: H. I <statement sequence3>;
0 K) T' b5 H" T' [0 k" ~end; B/ F" N. h/ y4 |' z8 d% B
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2循环语句$ k- A! Z* s3 ?2 m/ k/ q
(1) from <statement sequence1>) v) @# C2 F6 h0 g7 N
until <condition> loop
) k) V) c" ]1 V% ~* ]; n! M& A <statement sequence2>;
. W& ^5 X! |7 n- \ end;& D& [4 Q; t2 A4 [' E
(2) while <condition> loop' t; ?7 o) j7 U/ a+ y
<statement sequence1>;
; D' T4 y& x* J7 G end;
. h* F) ?0 L2 M, w( l" d5 ]1 l6 V) j (3) repeat 1 E- u+ ?( L) ^5 {# t0 F) a
<statement sequence1>;
0 o- S+ E" {+ H& C1 n, H1 j$ i until <condition>;& |1 s1 d7 A O0 ^, y4 z
(4) for <condition> to <condition> loop
# h1 v- E7 s0 M. |. h7 D" C <statement sequence1>;
; I* d8 ?+ @% g4 i7 m6 L next;- Q. F6 c5 ?$ q; u9 W) b
3中断语句
( H# w( c- M! c4 R) L+ }. Q waituntil <condition> prio <integer expression>;8 E7 E) @, H9 m0 O4 J
. E1 a# U0 ^! f( d' }
" ]( e1 P( q$ A6 c. n/ n% {/ f以上为常用的函数！
. t4 t8 ?/ l1 w# X还有很多，如有需要我把资料发到你邮箱里
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