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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
9 E' w* a# t$ D! P: a) Z if <condition> then
! v2 x8 J% x0 n r1 k& P <statement sequence1>;7 I5 S+ L2 K% A @( p
elseif <condition> then
& p% U3 B1 [, ^" M <statement sequence2>;
+ q n9 ^2 f! b' _ else
) I3 ~9 U9 r0 ^2 J/ {3 F <statement sequence3>;
, n5 z! C3 \ R& f a. A. B* g0 r end;* U; b" D7 u& Y$ x
如果分支比较多，用：( _/ j/ V" `/ a- i. Z, v
inspect <expression>
4 { e( i: L+ [/ q" ^9 G6 O+ r when <constant_list> then9 u1 c+ u, e% m
<statement sequence1>; C/ T7 O; X& R6 }/ P' s" j. _4 M
when <constant_list> then7 V% K5 R+ j% y! k
<statement sequence2>;- s0 A9 q. R1 C/ M$ u
...$ d# }0 G9 s k. p+ ]" b
else8 ]' M# @: s, r R1 `7 I
<statement sequence3>;
* L* \% Q: b' R- Dend;
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2循环语句
% q& x& t% C7 l4 G0 H (1) from <statement sequence1>
! d) ~# B6 a3 j( y6 t1 e6 l) G until <condition> loop
7 @7 F. y% L+ f6 Y" g( N1 x' e; O <statement sequence2>;
; g0 Q9 ?4 d; _" Z! y end;
) e* `4 T; d3 f& J% t& g* s (2) while <condition> loop
! O, Z1 G: @. V/ L <statement sequence1>;" j X/ ^/ O" I8 x
end;2 q0 Z' h/ M( N5 k; T/ ]5 v5 ~* f
(3) repeat ( h. Q: f3 h& N) ~* A
<statement sequence1>;
* g0 Q* H' m. _6 h7 f until <condition>;
# z0 C- s! R! H# b) g! f, O4 ` (4) for <condition> to <condition> loop
* }+ V" b- O7 l. p; ?! O2 c' u <statement sequence1>;
2 Z/ E F* `6 D+ d7 {; i k next;% n6 f" z+ c) B# E
3中断语句
1 |# _5 O* `8 r& q" g& d0 J waituntil <condition> prio <integer expression>;
3 Q2 |- L: x# E' z3 h8 U |2 R# y& H$ J$ [6 |; D; e4 {
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以上为常用的函数！
4 F+ R! B% J$ R5 K( j" ?- A还有很多，如有需要我把资料发到你邮箱里 + g9 } j4 q) J% b7 {, Z6 C
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