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发表于 2012-11-13 08:48:12
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1判断语句( X6 k: y. ]- U
if <condition> then
6 j% d! d4 j: ]! y9 s <statement sequence1>;7 Y2 W0 h3 j" p' I7 @6 N
elseif <condition> then* Q& s% l5 Q9 B
<statement sequence2>;& B3 ~; `9 G+ j9 {8 m$ p
else
) n* M+ F& q" C; Y <statement sequence3>;
, w" m% _& h* _( K end;
|- _; H: @; @7 j+ o: U' h, K" i% n如果分支比较多，用：
2 \" e) [7 K* _( h; O+ S. Y! E& k inspect <expression>$ B5 Z( Q2 J2 `; B( G" G
when <constant_list> then2 o+ j% X; `- |# s) T
<statement sequence1>;, N1 H; M; v+ w$ X- P' f. n! S: o
when <constant_list> then: j3 B( b) M) A* ^
<statement sequence2>;8 H2 [8 E0 p2 L4 i( y
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else
& i& n1 I& L% H& p8 W. @ <statement sequence3>;) z4 h; t+ u4 B& R' `) ~
end;6 G( l+ z* M. E2 A: u
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2循环语句# ?. l) i% z* x: r0 b
(1) from <statement sequence1>) z- ]; _! Q9 d9 l$ L1 v; @
until <condition> loop6 E: {) A, P+ ^! B1 {* a
<statement sequence2>;
" U+ s* z: O8 I end;
2 L- ^& T! L8 ]4 H; n (2) while <condition> loop! C" i! n- I3 h. E' O
<statement sequence1>;
; O% R) w' M5 b" V' k# R D& m end;
7 |$ G4 q( M! ]0 Z. ~ (3) repeat
0 t, q( q2 m# i2 D3 t- P. ^1 _ <statement sequence1>;( v! U6 }" F5 U, W4 z
until <condition>;
; V; g5 H0 X! [7 C5 q' v o (4) for <condition> to <condition> loop
9 b5 H" B& d5 r( e% K) o <statement sequence1>;
" G$ L# h5 p/ E/ l next;
5 I3 B5 I* ~! @- @: C' _( p0 e3中断语句! Q* [' z3 K1 T3 G" `$ P' z
waituntil <condition> prio <integer expression>;
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2 m+ U- K3 g0 ?8 N8 X4 N2 x以上为常用的函数！
6 i: Q" K9 l! Q: l+ R& S还有很多，如有需要我把资料发到你邮箱里 7 S; k6 S$ k9 F$ b- u
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