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发表于 2012-11-13 08:48:12
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1判断语句
# o$ S5 e+ {5 T4 h$ r) U if <condition> then' V x2 l5 N: l6 T: G3 G8 S
<statement sequence1>;. k# f5 W, u9 J, o, b1 b% ~5 c
elseif <condition> then! T) A1 v1 D. S9 c
<statement sequence2>;
: h1 i3 c5 q: c, t' ~$ a8 t" m else
" _, c+ I& q3 q0 n y% Z% G <statement sequence3>;* X( s3 T7 `$ C% ^! Q5 w: n
end;
- z5 g7 T3 _' ~如果分支比较多，用：. r4 j/ E+ O2 \. z, x c: G$ I
inspect <expression>
+ Q! T# x& S! e$ v' o! A/ y6 D when <constant_list> then! q" B$ J2 Y- c- A; |
<statement sequence1>;
1 _! @0 ^3 R0 u/ I' K! i& J* a# m when <constant_list> then0 w; E0 [2 R9 a- J+ k' ^5 b: b0 s
<statement sequence2>;
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else+ y$ r$ \# b7 ^
<statement sequence3>;5 T0 s0 Q5 H7 G
end;
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/ ^+ J5 H' W1 t) \8 N5 E& t- _! v. U2循环语句
! W+ n. g5 S0 ^. B (1) from <statement sequence1>
1 C& ?/ z$ E, v. c until <condition> loop( y" Y: ^. ]: ?: f
<statement sequence2>;
8 D7 |: K, C1 G) R4 o end;
, V" n6 @: Y4 d4 s6 ]- U! M5 d% @ (2) while <condition> loop) s( {8 b. V: }! E- l
<statement sequence1>;' e0 f- g0 |" y) j
end;. A1 x& z8 J6 ?; v4 E7 k1 `
(3) repeat
+ C" j6 B8 a) I: V8 s4 x <statement sequence1>;- [' b: `& k* @9 i$ k: [) D8 n6 b$ U
until <condition>;
! T0 j. W2 K- T2 G0 \+ w (4) for <condition> to <condition> loop
" Y G$ |' x8 C, r <statement sequence1>;
' P2 g" e( M. m+ L# e O" [ next;
0 k. z9 O' s. w$ F4 B+ |3中断语句 t- M' k( V4 M& E+ ^; k
waituntil <condition> prio <integer expression>;4 a/ h- D Y& j, m5 M
2 _# ~" ?/ ]. x1 E: Z
! X; t9 u( T( y: [以上为常用的函数！ c( Q) d) Q, D& }" H' S2 G
还有很多，如有需要我把资料发到你邮箱里
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