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发表于 2012-11-13 08:48:12
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1判断语句
" }! u |: m. P' ?) Q! U- _ if <condition> then% H ]4 c9 s2 ^- E, L
<statement sequence1>;" r! A( O) p( `2 k z/ M
elseif <condition> then+ f1 P* V0 G5 |& g( ~
<statement sequence2>;% x" J6 K" X; V0 H$ c
else
# r! W4 s3 ~# l c% r) J9 G& i <statement sequence3>;
! w# D& B! u: \3 J end;
+ Y( P5 f7 ]# F2 f) O* z* C" \3 P) Y如果分支比较多，用：3 C4 c' O2 ~2 o5 y. ?
inspect <expression>
/ E5 c- j- X" B9 k0 W when <constant_list> then; o# R8 q4 T/ w, Q1 u
<statement sequence1>;
8 R/ ?2 H$ G, m: x8 x# C) R& { when <constant_list> then4 [3 t+ @7 w y, o& S1 f
<statement sequence2>;
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else6 D9 F" G( t/ h' ]/ `+ H! M$ ^
<statement sequence3>; Y2 O" u" ]9 d; [7 a! s3 K5 W
end;+ i+ f- e# ^' O9 b! e9 }& l
* A, @; Z4 X0 i( y/ v2循环语句
9 n- X/ L. |, a (1) from <statement sequence1>2 _+ r v( |1 X( M0 s& a
until <condition> loop+ s; u9 V/ A# e1 U' `, k3 w
<statement sequence2>;
! s8 ?3 J3 Z6 {8 ?' V: D. a end;
, y6 g3 V# b" q5 l; g( b (2) while <condition> loop
9 _5 o, N4 O9 y; g# w <statement sequence1>;' f2 u0 F' ~7 A6 \$ m8 O0 ]! T' G L
end;
7 w' L$ m) k4 X, ]+ L% n, a4 v* h( g (3) repeat 9 H* n7 v' Z2 }
<statement sequence1>;- E* F. h7 T% i
until <condition>;- h5 o* f/ k* S3 H% v9 ]
(4) for <condition> to <condition> loop
% |% e( [* S D5 ? @9 t3 h <statement sequence1>;- f& y+ ?' F$ }! ?7 I
next;- y2 F, T' o: G* P& b
3中断语句; [# n( M! A5 x z
waituntil <condition> prio <integer expression>;1 K4 P8 H8 h% U! C" R
" ^: j3 V* _; T0 b: E9 U9 U$ z
1 G- E8 [' }$ L" G: ^* \以上为常用的函数！
8 V( m7 a1 Y9 Q* k0 L& r* J还有很多，如有需要我把资料发到你邮箱里 " W5 S) [; J/ V; D! x ]0 x
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