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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
. R( _8 U$ D2 Y- v if <condition> then- p' ^9 M; [3 b9 J e6 w9 `
<statement sequence1>;- i* ?, Z, X8 }# O
elseif <condition> then" i9 q( D- B+ Q% F% i. L( Q% W1 \% d
<statement sequence2>;9 T3 C: X" Y7 w& X: G
else
% |) q. s' C4 W( h: Y, ` <statement sequence3>;
+ q8 h Y) y o4 U4 K' G% ~ end;
3 K7 Y# T% \8 _5 A: N如果分支比较多，用：5 n8 q0 n0 Y" C1 Z" w) x6 Z+ M; n
inspect <expression>( ~8 |" x' H, R, g
when <constant_list> then
. t# h% C' n) m0 j* C6 ^ <statement sequence1>;$ v- f2 J6 m: S- j
when <constant_list> then0 g$ f) ^8 y8 j# V
<statement sequence2>;
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else# @; u) L# k/ r* r
<statement sequence3>;- y6 b* Z9 l0 o9 T$ h: K7 m
end;5 v* R! ~" P y' h$ N
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2循环语句
- l) Z2 y' H! b" `( p& ?# D (1) from <statement sequence1>0 q9 c% S( S+ G \/ @& }6 w
until <condition> loop7 n$ k N' G! {2 E& I
<statement sequence2>;2 _; j4 T" q9 P$ ~" _
end;: {! L* w$ i# B7 d( n* ]
(2) while <condition> loop
p- q4 @, v3 P) k( j <statement sequence1>;
, p5 ~6 x* p6 l" R end;
4 f* s( C7 g y7 c+ a* |1 D1 N5 V (3) repeat 1 e2 P" A" b s
<statement sequence1>;2 x$ Q1 {+ E, D
until <condition>;, t; U- D7 X1 X. W' m. x
(4) for <condition> to <condition> loop
' n0 ?! @2 ~4 s0 y7 v$ c( u+ ] <statement sequence1>;4 ~4 ?* ?0 e$ k7 S7 V6 J( w0 K6 X
next;
9 L2 I6 i+ B1 Z; m6 Z/ H3中断语句
{1 A# z# R' ~$ ^( W' D# n {) e waituntil <condition> prio <integer expression>;
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以上为常用的函数！$ z+ A, a# O5 d
还有很多，如有需要我把资料发到你邮箱里 / j* {1 D3 a2 H; e& f" ?- |' f- X
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