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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
, H+ r% ? D; v( h5 i% c+ L& C if <condition> then& I% o7 g' y4 F5 c `" _* w% H
<statement sequence1>;( n9 ]3 |* t4 |6 T3 _+ F2 k
elseif <condition> then0 q+ u4 ?9 J6 H4 k) R' u
<statement sequence2>;3 G" Z+ j. n6 r! D( L! k& l
else / ]! V) C" j2 c3 m J& P
<statement sequence3>;
; T. Z# R5 h% [3 m1 |& k1 [6 Y6 @ end;* }: V5 H! Q) S& k3 @2 i0 K
如果分支比较多,用:6 U6 c4 K4 }' a6 f# k
inspect <expression>! v& \' k2 e& N& {
when <constant_list> then: E" y1 H( z2 D7 c$ ?- e
<statement sequence1>;
7 b9 V% I8 r" u" Z: u( j when <constant_list> then; u, u: W% q; T: M' r, I0 z, j5 J4 ^
<statement sequence2>;
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else
; \+ L3 R; Y& s9 L' [7 ^, P6 E( e <statement sequence3>;
9 h3 y; p. [- {3 ], F! t- Oend;: K1 z0 j2 `5 L; u) O
8 c* S. G: Y- O- Q5 b# T) |$ c2循环语句
9 p" d) r. ?' \/ ?( \ K (1) from <statement sequence1>7 @ b3 i8 R' M" m5 l+ h
until <condition> loop, m( @' w% b2 {+ S
<statement sequence2>;
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(2) while <condition> loop
( x' ?5 x) f# l* b+ |. _9 L <statement sequence1>;; b5 l! N9 G, r0 e' w# t% J
end;: ?" ]" c; a0 Z& _# \6 q
(3) repeat 1 b0 B; n- A5 P4 n! M5 M7 O
<statement sequence1>;
. m$ k$ v& z2 x3 _8 K0 y {( d until <condition>;
8 Z7 s; \3 z- n# N5 y I4 q (4) for <condition> to <condition> loop
% n$ Y7 ~, J4 ~7 \% ], k <statement sequence1>;9 c3 X- P( ^# I: r I9 |
next;
& L) I+ P$ ?% Q, o8 F3中断语句
; k$ M* ?' I. I7 D$ c waituntil <condition> prio <integer expression>;4 w6 J9 @9 I# C! s
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( X- v" j* v6 o* b" n以上为常用的函数!# g& O6 Z6 F q+ l6 R6 V: o0 I' y
还有很多,如有需要我把资料发到你邮箱里
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