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发表于 2012-11-13 08:48:12
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1判断语句
- Z4 ]4 K E# d) F$ a ^, P if <condition> then
5 N( j; y/ n2 H( r* a6 f; k4 I5 } <statement sequence1>;
; r' ~2 h' p, [3 @ elseif <condition> then
; P% @* B: o" L7 J5 \$ V: ` <statement sequence2>;
: M: H7 ^/ v* L6 F, V1 O' U else 9 @- w4 N& X: D$ S
<statement sequence3>;. W6 ~6 W" J9 [% F; U+ B
end;" v) }" A3 R% k- m6 k8 ~/ @
如果分支比较多，用： v, j4 j6 f( E2 ?% d
inspect <expression>) o5 H, K ?# B! X
when <constant_list> then, C c. V; E( ^$ n# |$ D% `6 m( e
<statement sequence1>;; E8 @7 i1 S% @& u
when <constant_list> then" g/ G8 T; M$ r5 b- F: C0 W% L H
<statement sequence2>;
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else
& Z0 ~1 N& s* M <statement sequence3>;1 q# V! P1 ~3 t# ~
end;
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2循环语句
* j5 ~* `) L+ R- Y (1) from <statement sequence1>- v* F+ i" A3 J. }$ q) L+ @
until <condition> loop$ T' p! c! w1 K: H# J2 W. f
<statement sequence2>;; \6 n) u& e$ g1 u2 B
end;( o' y0 f% n7 \( [; }
(2) while <condition> loop
) \8 Q# X# h. ^' b6 U' d <statement sequence1>;' F C8 v l& {6 y# i
end;
: G, `, j3 i5 L/ w( ^: ?! U (3) repeat
0 @8 g3 j( _6 A/ Y3 r <statement sequence1>;
) f( W$ g ~( n2 s+ G# V until <condition>;
5 A+ o8 C4 t( M. x. u1 F (4) for <condition> to <condition> loop
* ^9 Q( {3 q2 ?9 M R) ~ <statement sequence1>;( r3 s3 c4 W6 {7 ^9 J' t
next;
+ B) t7 A6 t8 @" S7 x% I3中断语句
6 b4 z) s% a9 Z waituntil <condition> prio <integer expression>; x3 r0 a. j3 L" f6 P4 y
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以上为常用的函数！( c3 F+ b; ^* f- k6 K
还有很多，如有需要我把资料发到你邮箱里
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