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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
7 O& p* d3 a. C: [' a! {" P' ~0 H- L( y1 Q if <condition> then7 Y% q. F, ~9 k8 s; @. f4 u( e
<statement sequence1>;- c l) M$ Z8 Q' p8 j) P
elseif <condition> then+ n, f9 |9 t" }% Q) X' U/ ~
<statement sequence2>;5 p* R+ b3 w0 o) J# m+ L8 ]5 r
else
) Y% ^" L9 E1 w. o8 x" n <statement sequence3>;
2 H4 W, N; Z- b$ X8 d end;
7 {, Q- a4 Y. O8 ]9 e2 n如果分支比较多,用:) ]" c- r5 c- J8 e% A
inspect <expression>
; h; W1 z) Q2 c8 O" L) l' V when <constant_list> then
3 `* n- y. I% U# w, c: i' k% B1 U& M <statement sequence1>;
+ [2 W: o: |, P/ L/ W& I when <constant_list> then- c" e2 ~1 \+ G$ K9 I3 G6 B
<statement sequence2>;
; Q3 y% N, K; e$ Z u/ B ...
2 g2 s" h# D j9 v* `4 K else
2 x3 B( I$ W- I0 i1 ]% Q3 n5 j4 h <statement sequence3>;
) E: ?2 Z: y: {. b Y' ~% w7 q$ Dend;
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2循环语句2 U; f( m: w3 v
(1) from <statement sequence1>
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<statement sequence2>;* @& ^3 K# Z" ~( I& c, H t7 r
end;0 ?( ^7 P& e: D9 g( T
(2) while <condition> loop
. p0 ~% Q( s. V. t$ A! b3 y <statement sequence1>;9 `2 L7 u J* f6 | M4 D4 x
end;
6 x5 @" ^6 @. ^! n' ? (3) repeat 1 U! `* Y% }1 R! g6 b8 F
<statement sequence1>;
* L$ Z- _$ L& n. h until <condition>;4 W$ O1 Y( l- `' |/ E0 F S
(4) for <condition> to <condition> loop
7 N9 ^, O2 ?4 W1 q* P <statement sequence1>;2 t! ^% S. l. b. Z7 z! s
next;7 S1 t% {! F v, U6 k) T
3中断语句3 G4 G) f6 o* O2 a
waituntil <condition> prio <integer expression>;+ Q5 P, W( v% U, [" e
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以上为常用的函数!
, p! H. f0 U' c2 _9 r& e8 `还有很多,如有需要我把资料发到你邮箱里
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