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发表于 2012-11-13 08:48:12
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1判断语句1 m6 [, ~( U4 q7 [4 g' J
if <condition> then
& p) ?5 {9 r' H8 A& y6 @4 J# m6 d. t <statement sequence1>;6 p: Q$ o5 X- ?( w& u5 S. k& w
elseif <condition> then |+ D% O9 c, _, [$ \$ ?
<statement sequence2>;4 g3 M4 ^6 r) W% r |9 l
else
! y7 `9 |( ^- B: ` <statement sequence3>;
: w. m( }0 [- K3 }6 s end;' |( v: ^/ w- ?6 G& u# g
如果分支比较多，用：/ U$ y7 _$ m! G# L
inspect <expression>0 o+ b: I( @1 T
when <constant_list> then) t, o! e4 O' W! ^& r4 [/ e
<statement sequence1>;. k+ m' h& [; U4 W' a
when <constant_list> then
% g" R$ K5 ]+ x: ?9 Y' e <statement sequence2>;
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else. K% J$ V) y5 |' A5 [* l1 L
<statement sequence3>;
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2循环语句
3 W$ U5 U2 f1 i3 S7 P (1) from <statement sequence1>' |7 J3 _4 f; c' X; P
until <condition> loop
* x2 l5 f1 ]" h% U& k8 O1 |8 O <statement sequence2>;- Z" I% z. A, g! ?: p' M X' O# q- I0 s
end;4 j9 ~& M5 Q, U; p/ g+ p9 d0 G/ s
(2) while <condition> loop
* Z% p. u/ R( Q7 }1 J" N! M! N% j5 a <statement sequence1>;9 v$ X2 X; a/ o0 ^5 @* n$ n! X
end;! g, w: e7 ?5 f/ d+ \& e! q
(3) repeat
" `' X2 g: K* g b$ c/ d <statement sequence1>;' B ?) G5 w8 J1 l! b
until <condition>;
% {1 W2 r2 @9 ^+ Y+ q9 w& e. w (4) for <condition> to <condition> loop
" g2 }. T4 l, z8 M$ O <statement sequence1>;; S! Y1 h+ z, r( K2 D- ]+ Q, W
next;4 {) f6 T: \5 `6 K
3中断语句+ K% l5 @( H- C
waituntil <condition> prio <integer expression>;
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1 Z: H6 J; x8 T s; i' l( L以上为常用的函数！* u1 h2 g( Q/ J* |# K# V4 K4 _. }
还有很多，如有需要我把资料发到你邮箱里 ( L t0 E9 z0 a& x/ R
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