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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
1 |3 G, J f; |( y* N* i( V2 J* ~ if <condition> then6 H' v: t2 x9 A! }$ v5 \
<statement sequence1>;
1 o3 r) w/ U* j& b2 ?* s$ Q elseif <condition> then
7 A2 f: I0 B$ l <statement sequence2>;
\( o% }6 U$ @. B9 Q else
( d8 v& n. }) t$ T <statement sequence3>;
( O& Z, Z8 d7 d2 T: k end;
+ r. _) C) K; d" e" g如果分支比较多，用：) M2 l; T1 u" N v6 c' S! U
inspect <expression>
$ J, X9 K s/ p! i- n1 O when <constant_list> then
& t [. ]8 F- g: X4 f <statement sequence1>;6 C) q. V5 y+ r- S$ R
when <constant_list> then3 D* d( d9 }7 v9 ]6 G
<statement sequence2>;8 H9 A8 I& g; q) K0 R7 U
...6 {4 ?& J5 x" U+ o+ X
else
- K1 s; ?! k8 J <statement sequence3>;
( C" [( Z7 L3 C% f0 Q* |end;
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2循环语句. W4 N4 g" K+ N) ^* S
(1) from <statement sequence1>
9 N3 s4 o) w6 Y6 [1 D0 l2 ]" F# R+ | until <condition> loop
: Y* E* U5 q( P' @2 U8 Z1 q- ~ <statement sequence2>;# T3 z2 \0 o: N* f9 q: Q! |/ H# j j# R
end;
9 \* w# _7 y5 n5 a9 ^ (2) while <condition> loop; L; ~# q0 {& u; W% R' k8 B
<statement sequence1>;2 C8 F1 q# d7 @% o! c! D: {; I
end;- e, I5 k; C# h# i, f2 \3 |
(3) repeat
$ _7 q& c7 b- O7 i4 O0 Z <statement sequence1>;0 m8 F2 M5 t, F/ `- v
until <condition>;
/ v0 r* ?$ ^& J. Z/ C (4) for <condition> to <condition> loop
7 R. @5 G: ^" q/ }& z+ N; a2 J* p8 } <statement sequence1>;
, @! w- {( H! S- k9 b2 G next;) \( l* A! V4 L3 e1 v
3中断语句
" I& b) x! x9 P% G0 @* o waituntil <condition> prio <integer expression>;5 r9 |. D' O# y, V
! Q% a& ~8 G- @' |+ o. K# H( E7 t8 F; Y) @8 w5 e+ D
以上为常用的函数！
: e. p3 J2 ?2 j/ i1 e0 T$ J. ~( T% n9 t; _还有很多，如有需要我把资料发到你邮箱里
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