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发表于 2012-11-13 08:48:12
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1判断语句
% P+ U" z# L* d3 ~ ]3 p$ U if <condition> then
+ Y" ]* ^1 n( V( R# }+ y# a; X" g6 Y& x6 { <statement sequence1>;
0 D3 |: d1 o& |( L& } elseif <condition> then
7 P5 a4 e3 W/ S6 P y8 C <statement sequence2>;6 b1 E- a2 {! ?, J# n8 S
else
" J' `! {% m0 B' {: |+ z5 e <statement sequence3>;
( M. X. K; N- _& a( H( ^- O$ O end;5 F$ b" P. b& i; ^7 B" J+ ?- i
如果分支比较多，用：
( u( ^9 @3 `* c e inspect <expression>
! c& F0 P$ J; G: T5 q4 o# ` when <constant_list> then3 s4 J7 `8 j4 m$ E
<statement sequence1>;
+ s2 Q3 g9 e$ Q7 U0 f, e. t when <constant_list> then
$ ~5 q [( n4 c |2 G <statement sequence2>;
3 }% C8 W# D' L& j ...
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<statement sequence3>;& r' r5 `1 t3 I2 a3 @
end;7 U4 L( l: r: z) D+ J- f
2 {5 ?3 a7 w+ u4 j2循环语句
+ y/ \, z2 x3 m N2 @' ` (1) from <statement sequence1>) S/ E: [" g/ |$ ~, h$ h+ D2 q, T
until <condition> loop2 Z) Y# ^9 T5 h6 S0 o Y" |6 e
<statement sequence2>;
, L% |! P" `5 b# h end;3 H/ r: n) y j4 E
(2) while <condition> loop
! f2 d5 _ [" ~ <statement sequence1>;/ p5 o, l' H! I w: J: B+ {
end;( y! m. S+ t/ t5 n/ f+ ^
(3) repeat ! G3 y; p" x& d4 H8 F# Q
<statement sequence1>;9 m* _5 T* G2 o
until <condition>;+ w6 N4 ^& k6 i& Z" G1 M7 p7 F
(4) for <condition> to <condition> loop
) n* M7 {. g1 L7 |/ l! }' k; E <statement sequence1>;/ E7 N/ a: k; w5 F& J# t L
next;
( S3 k! q5 W; C$ n3中断语句
- N5 @4 E O9 x& ^" u waituntil <condition> prio <integer expression>;- L4 i8 Q5 F, a8 A7 T
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以上为常用的函数！
H S2 E" t: b, I0 E还有很多，如有需要我把资料发到你邮箱里
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