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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
0 m$ \$ T" w3 G( O/ B if <condition> then
! j+ k! X2 t4 J* @/ q6 j <statement sequence1>;
7 _8 y# B( B4 w G$ Q0 ? elseif <condition> then
, W0 j- w9 i3 p9 A& Z! m <statement sequence2>;% i* O9 f' l) c# G( ~
else + L" K' F/ E: c" F
<statement sequence3>;( L, T1 w! S: K6 `, R
end;
: n( H) J3 } D$ t8 D* F' T4 ^如果分支比较多,用:
9 U4 x0 {6 X0 j% V inspect <expression>
7 g( X1 `) u4 W2 K+ `; ` z when <constant_list> then
0 W" {7 [# p6 ~/ p8 N9 n <statement sequence1>;
' q! u- F" ?. h2 l9 Z when <constant_list> then9 f2 a/ m6 Z3 J. B
<statement sequence2>;) R: ]/ L( f. J! [0 q
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else3 v$ _8 Z2 V! O+ @8 ~
<statement sequence3>;
* F' W( J9 L: }, q' R' [end;
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2循环语句
3 V& @) K6 k& h (1) from <statement sequence1>7 W$ b- V1 I$ M6 r5 L2 j/ B
until <condition> loop* S& J! X5 h2 J" V) [
<statement sequence2>; J! r) o/ ?; F2 Z# N4 Z
end;
2 X8 |5 o" j; u5 i (2) while <condition> loop& J4 h& F9 I7 g# }. e
<statement sequence1>;
2 Y2 y# f! L7 P* O end;# ~, y5 s+ a& e# T$ ` w' [- ^
(3) repeat
- g* a! Q2 k' y3 J( @) j# ` <statement sequence1>;
, N; v( ?6 g0 w: M until <condition>;
6 B, a' n% _# D. u0 f, r (4) for <condition> to <condition> loop
, [0 b$ }/ R& w, b: G# \ <statement sequence1>;
3 M/ y5 o, f9 K. e/ L next;
( T% D0 R5 X/ I" q5 q3中断语句
u. C% g2 l7 a7 f) C4 @# p" w$ {* s, R waituntil <condition> prio <integer expression>;8 `5 ~2 U" t" m# j! o0 j( ~7 c* T
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% Q/ X6 c3 p8 L/ E2 U7 M+ j8 E以上为常用的函数!
! y& f5 p& f! A8 E1 J* }3 l L还有很多,如有需要我把资料发到你邮箱里
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