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发表于 2012-11-13 08:48:12
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1判断语句
6 E" s# N: w' l. B/ b) ? if <condition> then J6 R! {$ `, e% q. |) D9 v
<statement sequence1>;
, {' g' l" T6 L elseif <condition> then
2 g! f7 r; `3 X* D <statement sequence2>;
/ X+ { C+ K% E/ j3 ^& c1 ~ else
6 E: W5 R8 c8 N3 X% n5 r' | <statement sequence3>;
' K# e0 c5 L! a; n9 N3 ~ end;
% M' \2 f* M% i/ u1 V) o+ q/ v( @如果分支比较多，用：
1 k/ |% {) V: q# g9 g; B inspect <expression>/ x# @+ Q+ D3 s" i3 B
when <constant_list> then
& u+ ^1 Y |9 z% X3 Y6 c& q <statement sequence1>;/ m! y& ^% m% c0 P/ c6 o. F
when <constant_list> then
+ f+ g# k5 n( y- U9 V# ] <statement sequence2>;; j6 _- X- e3 E; E; f, C( s0 I
...
% D0 [1 B' r& c# E1 @3 t% m3 W else0 H Y$ W q- }7 g: q* E( o. X( A6 _1 M
<statement sequence3>; \$ J4 L: Y7 U, e0 e, i
end;4 W2 s* r. T! l- ~ P$ [2 R: B
1 b$ g; g! \; J L) n7 p' x+ m9 k2循环语句% f" \. K( b5 X3 l/ ` C
(1) from <statement sequence1>: n$ i# x+ R& r
until <condition> loop% | m) _- j* w% q$ H. ^
<statement sequence2>;6 M$ u1 T8 ?0 q( C# T/ u4 {0 V
end;
1 ~3 Y4 Z! X- T* @2 Z) R (2) while <condition> loop, \5 ]- v0 p% A% F
<statement sequence1>;
- Q+ e$ A$ I8 V& H7 O9 { end;( V" M9 ^( ~0 t: _1 F
(3) repeat ( M8 c* ]7 \% a6 T, u- _# B2 q3 F0 R9 m
<statement sequence1>;6 w% v& |- r: I) O
until <condition>;
9 r/ U' F9 H( | (4) for <condition> to <condition> loop
( c( [' B$ A" w% e7 G0 v6 }" F <statement sequence1>;
; p0 K! ^, Z$ b S7 Y: C next;
$ J6 N: u' q1 Y. q" t3中断语句
1 d; P- H: _; ^- a+ O$ u waituntil <condition> prio <integer expression>;
5 f/ t( o0 b/ ^& i0 |% }5 ]4 r. ^. C1 ^1 c% _" a1 k$ H
) P/ I% D2 s3 J8 z$ N# {* R; `" }以上为常用的函数！5 \# g9 I6 X# u: B
还有很多，如有需要我把资料发到你邮箱里 , o4 j. {: ]7 _- s6 w# V
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