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发表于 2012-11-13 08:48:12
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1判断语句
7 k$ E5 d$ H4 d2 N W0 b$ J if <condition> then
% s# c! r: C2 S P" @ <statement sequence1>;+ C s- Y. O) B5 h8 \- }& S1 f
elseif <condition> then3 i6 k* e4 Q. ?5 ^. W+ c$ _- ?
<statement sequence2>;* }7 N8 R$ h( E
else ) J0 q* T" v( M. w8 v1 ]* h
<statement sequence3>;$ \1 f5 n/ p) z2 u
end;/ H* k6 ?! I4 c' W; H L O
如果分支比较多，用：. V6 ] i- E C
inspect <expression>
: t. h/ V2 k. \3 U: R9 H when <constant_list> then
" R1 L4 a* `( H3 k) u9 Q <statement sequence1>;+ G/ `- m6 u8 U( h
when <constant_list> then
& R( v- @0 U# O3 H. @6 U3 @: V <statement sequence2>;
7 w4 G- B( e$ H) M( Z/ \2 G ...
7 i5 Y, ?. U a$ C0 m: A else: M# ]1 z- u: _ ]% a! I
<statement sequence3>;! G0 q) o9 O5 P7 c8 P
end;; c" j( ]. K* e
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2循环语句: Q: K! A- ?1 M1 B( C
(1) from <statement sequence1>3 B: n6 n1 t- [( M, b0 X
until <condition> loop
3 x- _) W# O( K/ `& X* u. @" q <statement sequence2>;
0 A, i7 |; a. h6 Q4 E9 p' P end;
/ |" A1 N2 }, j: V! s (2) while <condition> loop
* u' D% m2 [$ W4 w <statement sequence1>;
6 [8 E0 v; I( ^% \5 q end;# e4 C6 ?+ |2 ^) }
(3) repeat # [! |# v5 m* L' \9 i
<statement sequence1>;
" y; b+ T0 I2 d5 u1 s. D until <condition>;
% D, ^% o+ t: I( e1 l. |- K* @ (4) for <condition> to <condition> loop
" C1 @. D2 \. c <statement sequence1>;+ Z8 X$ y' M9 `
next;
+ _+ a$ [3 O7 I D$ v; s* k' H3中断语句
) t( E% p \# I- X+ u# ~ waituntil <condition> prio <integer expression>;2 X$ X0 \) k+ X0 T- r) r
) Z; l9 J, C6 t, t8 {
7 w1 G& T3 [$ i5 E以上为常用的函数！: e5 S2 c' U$ T
还有很多，如有需要我把资料发到你邮箱里 4 F6 S& F% n! A- N- G2 e1 d
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7 X4 t& ^ N8 ]+ X8 s- O9 v+ K1 ^
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