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发表于 2012-11-13 08:48:12
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1判断语句" C+ D$ y: y( }/ I: O6 l1 P
if <condition> then7 X) n) Y4 x8 V8 J& X; X
<statement sequence1>;
% Z' L9 x6 C5 Q; G q elseif <condition> then
- ? b f S. t# ]! j p4 F u <statement sequence2>;4 b- _) i) _1 @: L4 D
else ' k0 `% X. ^2 }7 Q9 @4 W
<statement sequence3>;
4 Z2 a/ K5 X( g/ u0 ?- p end;
* F6 G3 F w9 O+ r如果分支比较多，用：
9 ~& j/ ?' {# }0 P5 a inspect <expression>
: B2 C5 _% g6 [# t: a2 j when <constant_list> then/ }- y6 a5 u* @$ e( {0 b
<statement sequence1>;! O( z( e8 {% b/ ~4 F& }
when <constant_list> then) |* }3 m1 e% V4 C0 ^7 A
<statement sequence2>;4 w, a, h( n, w4 P
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else
% {+ Y- ~5 L6 H <statement sequence3>;* a, q# ?% S4 o" m' v
end;
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2循环语句. _, {, {6 M& [4 C; ~- O+ n( q
(1) from <statement sequence1>- r% N4 s) ^/ h& X3 D
until <condition> loop6 M5 P5 E+ U# O- T7 v( C+ m
<statement sequence2>;
3 [- d8 o6 r1 M! l) Q( J7 i end;
: H8 k- F5 l& R. C6 H9 _) I (2) while <condition> loop
" D0 y. h; V% l <statement sequence1>;: _3 E: n: L1 y" |0 w3 S3 V+ E2 B
end;
' i1 ] l, v0 `8 R (3) repeat
6 K# w* A+ [( [% U& G <statement sequence1>;* h4 o/ ?" k/ I1 }! U" a* ^
until <condition>;
& g* y( y6 a8 \6 \ C. k (4) for <condition> to <condition> loop
7 ~9 [" E+ B+ H6 [4 w <statement sequence1>;
# W9 `0 q& H$ ]- P: L next;
' I. e4 H- j, t0 l( N, q' ]9 p3中断语句, }, l1 n& s; n @/ K9 U$ S$ K- T
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
- J" o( b, q0 r9 S6 Q* h还有很多，如有需要我把资料发到你邮箱里
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