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发表于 2012-11-13 08:48:12
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1判断语句% Q) B+ u8 E; z3 f2 P" @6 V f3 s
if <condition> then
1 r. w* v+ s8 H) r( y( r& ]/ K7 I8 z <statement sequence1>;; b( ~, ?. |+ {: E; ?! Z3 r4 F( `
elseif <condition> then
5 e# L9 t$ H3 g: o5 i <statement sequence2>;1 R2 w1 h0 P4 F: ?! D
else
0 ?4 \( o, q8 y <statement sequence3>;! r5 K, X& X: |1 e' |+ V3 ? ~
end;) `( u S3 H5 a( m6 K
如果分支比较多，用：
! ^0 _: N7 v* @, y `) H inspect <expression>- g" e# d3 s2 g7 S2 c5 i
when <constant_list> then+ l3 {( m4 s; D1 ?0 K$ A; }. ^
<statement sequence1>;
( V4 T6 G5 T# Q3 l4 e when <constant_list> then3 ?7 J6 r& m, K# z; _ ?
<statement sequence2>;
' H2 w% o0 S {1 p: B9 W1 H, G" u ...
, V" ?6 ^, u0 e else
J- l; l; D* ~5 P9 ~ <statement sequence3>;' i; d, u0 F5 }2 ?/ b& _3 G
end;
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2循环语句4 y7 b/ E+ ~ A3 e3 S) x6 M
(1) from <statement sequence1>9 h) M. Z1 {% `3 d j4 F8 u4 s& A
until <condition> loop: L& c% n d' f
<statement sequence2>;
! ~2 c- s2 K- P' d! j end;
, |% v4 i: F1 x+ a d1 T (2) while <condition> loop5 j0 V0 d4 s- Q: [9 J
<statement sequence1>;
9 t; u# p; E$ e1 s" q" W; n3 |" `5 ] end;
( M( X Q" [: C& ]3 }2 Q (3) repeat 5 F! ^. B3 n3 l U5 K! ]
<statement sequence1>;
; ?3 u, I* G0 U" R until <condition>;
' R; q/ v3 ?9 Z/ c& W: u8 N( r (4) for <condition> to <condition> loop
/ D" r$ Q2 q$ h1 t& M9 \3 M <statement sequence1>;
8 Z) x. Q0 H! C next;& W# A$ J7 u9 ]
3中断语句) T7 @. c' f$ g# ^" k2 A
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
, O' k$ V, M& o$ h$ G还有很多，如有需要我把资料发到你邮箱里 % Z) G8 y: V& `% ~2 L; c: ?& ?
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