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发表于 2012-11-13 08:48:12
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1判断语句% c! H: N3 E1 `, W" H" e
if <condition> then s9 T9 N4 {$ ^1 m
<statement sequence1>;
, z m: I3 {1 U9 x* F, o, ? elseif <condition> then4 M, X. J8 V# r2 t2 I9 l! p' ], {' B
<statement sequence2>;: l9 M& b2 |' d
else
, L! \7 @( x% I8 H: { <statement sequence3>;
! t+ J; m) ^2 ^! Z end;
( @. Y) E5 Y F如果分支比较多,用:' P1 U$ J; B* T: }( d
inspect <expression>
5 {' B5 G* i4 o a8 W# ? @+ \ when <constant_list> then
( r) N; _: f4 I+ H1 g$ Y# h <statement sequence1>;
& i# A2 W$ Q& E0 N when <constant_list> then
8 H O3 V1 R4 I d! S: u <statement sequence2>;) N, W* k. y6 J
...6 h% ~& a5 O; L3 s' M8 }
else
7 X) W* u+ g9 A <statement sequence3>;) x/ v R V3 w7 [5 {* \
end;# Z0 l. U, _0 V* \& p& f& ]
; J1 s! L% e. O2循环语句) W9 `/ ?; J, b" W$ B! g9 B
(1) from <statement sequence1># |/ f# y6 O7 f( |) J/ t
until <condition> loop' ]" f% C2 W4 j- g( K4 T6 Z
<statement sequence2>;% v1 Y7 j7 V' d2 Y3 {+ @$ E
end;
8 F" d' Z6 N2 f3 t9 S# A+ B/ J7 e (2) while <condition> loop: j( Z# L K1 V
<statement sequence1>;
, }7 U% X2 Z6 @+ R# ~) D" I, [ end;
0 g; U% M' y, r' L (3) repeat $ R$ B# b$ p& @/ M' d) k0 i
<statement sequence1>;
2 G1 K4 k6 r/ R# m. N2 Q2 J until <condition>;
2 o: u% C5 Q: q( n+ h* X9 B (4) for <condition> to <condition> loop
6 q$ E6 v: ^* \& E: J9 [+ y4 f4 l' ~ <statement sequence1>;" v$ o& s0 b6 m7 A ^$ M
next;
8 K: q4 m; `* \) }2 P' s) J. |3中断语句
+ W- p8 C6 F4 s9 y Z# ] waituntil <condition> prio <integer expression>;. z. k9 t6 k2 L+ H
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以上为常用的函数!+ M# C$ h( L* w! C$ x( c0 U" F. @
还有很多,如有需要我把资料发到你邮箱里
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