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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
: F" k9 P, d5 n7 V% q p if <condition> then' @+ U3 g- Q2 K8 D1 m& _7 F5 V5 p
<statement sequence1>;
/ ^6 u2 N! U/ W1 I* C elseif <condition> then+ |! j( x' f6 S$ Z7 q0 h% a
<statement sequence2>;
" Z( x }3 P) \9 [ else 4 I, z' ~& w' r7 D
<statement sequence3>;
( ~5 Y K& F8 y2 r end;
( \4 y5 x$ B3 U如果分支比较多,用:: B6 F$ p* c- J+ q) b1 `
inspect <expression>
" h. X1 G/ O' w1 g; E when <constant_list> then9 w8 d* w- n& p6 O+ j
<statement sequence1>;
# a" p+ N ~8 j# B$ ^ when <constant_list> then
; P" w+ i% g& L, O w/ p <statement sequence2>;
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else; o: |* h3 f% {8 c4 u, [
<statement sequence3>;$ l* ]! I" z; \
end;+ U1 O' n% Y) W- h& h, E+ t6 s
C1 u3 g2 q' D% N( d$ ^* N& V
2循环语句1 e c1 v' L1 V; m) I& l
(1) from <statement sequence1>2 W! V, h, ?& [+ Z' i
until <condition> loop
9 O: q' X u! |! e% I$ y% A$ w: F <statement sequence2>;
, B4 @/ T; a' F/ ^ end;) u# a- F. l+ T5 ~8 q, F
(2) while <condition> loop
/ }4 O) k7 O4 v2 U+ s <statement sequence1>;
! Z/ l3 `0 f! G3 G. @ end;
5 x) H7 m% o6 {+ D (3) repeat
/ F6 H; w, k2 O2 p <statement sequence1>;
5 B! I+ u% L9 f until <condition>;
+ _5 t+ r7 G( I; _* { (4) for <condition> to <condition> loop$ @! M; W f6 g6 a* r' _8 J
<statement sequence1>;3 d- i' W, _7 R9 ^9 V1 g
next;6 q1 ~+ o0 X% k: G+ j; i* j, ~
3中断语句
& ^: }; g* |# A& u" |- C waituntil <condition> prio <integer expression>;
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+ ^' C1 L8 M0 x/ X. s# n
以上为常用的函数! @4 Q) n1 L" s1 [4 f
还有很多,如有需要我把资料发到你邮箱里
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