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发表于 2012-11-13 08:48:12
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1判断语句& B( ?0 ~- H b7 A6 ? k: A: }& w+ P
if <condition> then
/ S9 B* W: ~# s; g% B6 l <statement sequence1>;
4 ? w2 y0 Z, d) d Q9 W elseif <condition> then
0 ?2 d* r4 u! E8 U. X1 f <statement sequence2>;
7 _& @" I g3 Q else
& d3 Q( g7 f7 G7 j- ] <statement sequence3>;6 S% g0 w, | ]" j7 S: a* p
end;
9 p; J! l9 g. _# [) \如果分支比较多，用：. y3 E; L* [# G. ~
inspect <expression>
2 K5 ]5 @4 l/ M7 i% G9 F when <constant_list> then
: z/ |! G2 R2 f' ` J% t3 G <statement sequence1>;
3 G( ^. O3 s) ^$ p2 O& k# b when <constant_list> then- b4 Y/ \( a i0 E, u
<statement sequence2>;+ `+ t% y8 I% K
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else0 j% M$ o4 x- s9 A% `
<statement sequence3>;( J% L9 @+ D5 N5 T
end;
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: r6 O6 b: L0 ]5 ]. ^3 C2循环语句
+ E5 w y* _- u9 q (1) from <statement sequence1>
2 S* C, z5 ~5 ^# A- [; T" F# H until <condition> loop) ~2 E/ [% \& a
<statement sequence2>;4 ^3 v2 y0 C3 c! l, J ?
end;
, t1 j$ P! M4 m$ Q' u (2) while <condition> loop
" D3 p( |# @8 y <statement sequence1>;
5 e, E* N0 r, W" h end;
& |+ Z; G) P9 f3 @ (3) repeat . _+ u1 Y- X! t
<statement sequence1>;
1 C) a2 W8 [3 B until <condition>;% ]" V# o. |% X; a- g
(4) for <condition> to <condition> loop
% y1 R- Z @$ x8 W9 j5 {+ \8 t9 x0 s <statement sequence1>;
# n, |7 v2 [+ Y next;$ I! F$ u% Q, f
3中断语句# s6 @; _5 a5 s( m) B% P
waituntil <condition> prio <integer expression>;( d$ o7 Z) L, t9 B3 y- e
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以上为常用的函数！* P% G4 ^8 ]$ x& c4 W
还有很多，如有需要我把资料发到你邮箱里 0 g6 u p$ @& y& |
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