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发表于 2012-11-13 08:48:12
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1判断语句6 ]0 n \3 d& ?% i# h2 c* u
if <condition> then& Z' k* C$ Y' x* t1 P4 p8 p7 ~) k
<statement sequence1>;
9 `/ t, a A+ C elseif <condition> then
7 w5 E. {" ~% Z6 i/ V0 W" H9 z <statement sequence2>;
0 P6 u9 g% X q3 x8 T7 ~: E else & k7 ^% o3 h# K3 Y, ~4 ?
<statement sequence3>;
4 d' {$ S( w N+ Z end;
, V+ q9 e# f6 Q* l3 V如果分支比较多，用：2 T0 o9 h5 k3 Q: X4 F' A6 y3 \
inspect <expression>* o& R' R$ r9 x" W
when <constant_list> then
$ t1 h) ]& {# {" W- M$ ?( g <statement sequence1>;$ [1 M; }& _, Y- ]" |) X
when <constant_list> then: p8 I6 z6 R3 h i* z8 G ^
<statement sequence2>;& C9 I" `0 K% t" k, u% I/ e. O. L( e
...: ^7 U& p% f5 J8 r/ f1 Z0 I& Q
else
% K8 j1 A ]5 B$ a% C4 }( p <statement sequence3>;* c r' H( M/ W% A; T( k) |
end;( h! A2 L/ ?) `
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2循环语句) y4 c* I- u$ U) v
(1) from <statement sequence1>5 j3 [5 v6 E" o% ~
until <condition> loop1 {, w& g8 `1 F% _/ Z
<statement sequence2>;
) I+ o! p( q+ {$ G5 N end;
% z/ @8 M. d, H, G4 w6 O (2) while <condition> loop7 N' x+ \" P3 F
<statement sequence1>;
3 Z4 x3 }' U1 a end;
u4 k+ C5 ?$ X' k6 c3 V# U* o (3) repeat
5 N' g# k- e7 k Q% v; |" _ <statement sequence1>;
0 @- A! w1 E) e until <condition>;* a! t( Y5 @1 J/ [8 B$ F
(4) for <condition> to <condition> loop
8 l2 k2 a. {' {$ `; s2 Z. i <statement sequence1>;2 o, N+ s5 d0 l4 \2 `& t8 s+ n
next;1 b: f3 {1 g- U( i( f& ?" ~
3中断语句+ o, p# t( }, E3 c5 K
waituntil <condition> prio <integer expression>;1 m, O3 }) n$ ~6 s2 ]5 y( ~
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以上为常用的函数！1 r4 a& }# K3 ^& ~5 `0 m
还有很多，如有需要我把资料发到你邮箱里 ; Y. X, z A/ G; @" c$ w0 w
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