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发表于 2012-11-13 08:48:12
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1判断语句4 H% Z# D% r. d
if <condition> then
2 M8 }, N) ?, \- d3 s <statement sequence1>; [" K/ P* P" ?' p7 v" g
elseif <condition> then) f: d4 |/ a# D# a9 `
<statement sequence2>;6 C; W1 _! H1 A% s: F: I
else
+ c$ ?9 Z9 x. D. s: v/ V- I <statement sequence3>;
( |' E; j7 B4 R end;
2 _4 Q |& T. @- C+ r. U, H如果分支比较多,用:
: s9 S7 |" G+ {# |! O0 h inspect <expression>
" u0 C4 ?, ?$ v1 p2 g4 ~0 ` when <constant_list> then
- W, v: y$ C5 b# w0 i- v" D3 E <statement sequence1>;/ H( P+ `0 K4 s' _
when <constant_list> then9 R9 S$ A7 J/ L. V
<statement sequence2>;
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else$ t# W I5 y" n2 E. O7 n
<statement sequence3>;8 v8 a4 X0 a' Y% t- u; {1 ^
end;
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2循环语句+ n5 ]0 J5 w, @& a( i6 B1 ~
(1) from <statement sequence1>
, t4 x1 q/ V, C( e" w- w until <condition> loop- N- D; w5 b% p, Y5 A3 w
<statement sequence2>;! d0 a& w) A) J. N
end;! c+ w; k! i: X# S2 x/ K
(2) while <condition> loop' _% e9 r% J- v. s8 T0 N
<statement sequence1>;
# A1 [* H; y& h! G( X end;0 }1 V: P1 I/ \, N0 d+ e
(3) repeat
+ `% k1 Z/ j+ k7 ~7 G <statement sequence1>;+ U) @9 m' W5 @2 c0 ?: G4 L4 f
until <condition>;
; T/ U$ n, U( g. J2 R F3 t9 I" j/ x (4) for <condition> to <condition> loop; ~# i* k5 T% e9 l" z$ |+ y/ c
<statement sequence1>;
" ]2 a! T' T( ?- |0 E \( i3 W next;
. X c% k& L" g7 J& z* s3中断语句: f5 n/ _$ g8 l+ V" H
waituntil <condition> prio <integer expression>;$ g- s. f& ~6 U; H+ l. l* E* ~4 H
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以上为常用的函数!9 G- `1 z0 N: g$ ~; M
还有很多,如有需要我把资料发到你邮箱里
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