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发表于 2012-11-13 08:48:12
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1判断语句3 z, j% h8 h' F: V" A' H: g
if <condition> then5 H) ` L. d% b" n
<statement sequence1>;' _( A- C: o: Q
elseif <condition> then
" V6 A4 t0 s: ^" f- \ <statement sequence2>;( S0 ]# _: n2 E' _7 @+ R
else * N5 q$ s- u) o, H
<statement sequence3>;
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如果分支比较多,用:* _) ~; f; F" K- `; }7 `2 j
inspect <expression>8 ~% T+ m6 `! Q5 D8 C$ Y# q, w
when <constant_list> then
, K0 Q8 l7 o* L: r! R! S% e4 C <statement sequence1>;
$ ]8 ^: `. u. `) h* l8 l when <constant_list> then
+ M+ M* I7 p! ~ <statement sequence2>;
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else; C3 _7 b1 v2 o% ^
<statement sequence3>;1 v1 \+ H& X! R$ V3 u' Y s
end;
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2循环语句
1 E7 t* O0 q% v/ O% _3 C (1) from <statement sequence1>
$ @+ C# y1 G/ Y& G1 A. D5 i until <condition> loop3 L0 H; m2 _7 p1 H" _$ H9 O1 t
<statement sequence2>;; N' ?. ?! I6 b) X. c3 ?, X* X
end;
% E) ?0 O/ D( s+ [ (2) while <condition> loop
3 u" S; l: T7 k <statement sequence1>;
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(3) repeat 4 ~" R9 x& R0 T, X/ [: h4 E
<statement sequence1>;8 B3 u- H7 P0 p5 z: t
until <condition>;
1 n# X0 `( n/ G. J (4) for <condition> to <condition> loop. w( x' {$ H* l' v& z3 Q% C
<statement sequence1>;
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3中断语句% \- P G9 L3 Y; J, K
waituntil <condition> prio <integer expression>;) Q" r1 K" `- i' n; V! a" h8 X* w
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以上为常用的函数!# ~* B# U! c" q+ l- E. K
还有很多,如有需要我把资料发到你邮箱里
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